EDITION/REVISION A/0

R NINGBO DAVID

SERVICE MANUAL

YP-2000
INFANT INCUBATOR
 NINGBO DAVID MEDICAL DEVICE CO., LTD.
ADD: NO.158 DAQING ROAD, SHIPU, NINGBO, ZHEJIANG PROVINCE, CHINA
POST CODE: 315731 FAX: 0086-574-65962111
MARKETING CENTER: NO. 11, ALLEY 722 SANGTIAN ROAD NINGBO, ZHEJIANG

POST CODE: 315040

TEL: 0086-574-87800008, 87800009 FAX: 0086-574-87801111

E-MAIL: sales@chinadavid.cn david@mail.nbptt.zj.cn
WEBSITE: http://www.nbdavid.com
EUROPEAN REPRESENTATIVE: SHANGHAI INTERNATIONAL HOLDING CORP. GMBH (EUROPE)
ADD: EIFFESTRASSE 80, 20537 HAMBURG, GERMANY
TEL: 0049-40-2513175 FAX: 0049-40-255726

EDITION/REVISION A/0
 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

WARRANTY

The product described in this manual is warranted against defects in materials or

workmanship for one year from the dates of shipment with the following exceptions:

1. All consumable and disposable products are guaranteed to be free from defects upon

shipment only.

2. Normal drop-in services are not included in the 1-year warranty.

3. Damage caused by irresistible force or improper man-made operation.

During the warranty period any defective parts other than those listed above will be replaced

at no charge to the customer. This warranty is rendered void and our company cannot be held

liable for conditions resultant there from if:

1. Damage to the unit is incurred as a result of mishandling.

2. The customer fails to maintain the unit in a proper manner.

3. The customer uses any spare parts, accessories, or fittings not specified or sold by our

company when this product is changed, maintained or repaired.

4. Damage caused by ignoring the attention or instruction of the manual.

5. Damage caused by the environment of operation, including the electric condition or

installation conditions, which do not accord with the instruction of the manual.

6. Damage caused by unauthorized dealer.

7. Damage caused by reducing the system safety due to stalling the accessories, which do

not accord with the safety requirements of this product.

8. Enlarge the application scope of this product at will.

Prior to initial use, the capability and mechanized integrity of the product should be tested,

afterward, at least once every two years; at the same time, a record is a must. To comply with this

standard, we recommend that you participate in our preventive maintenance program during the

warranty period. This service can be performed by certified technicians and authorized dealers

that have passed through our product service department.

SERVICE COMMITMENT

For optimal performance, product service should be performed only by qualified service

personnel. Technical Services representatives can be reached for fixations and are dispatched

for required maintenance by calling 0086-574-878000008. Customers outside China should

contact their local factory-authorized distributor for service.

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

COMPLEMENTARY NOTICE
Since Ningbo David, conducts a continuous product improvement program, circuit and

component improvements are sometimes incorporated into equipment before they can be

incorporated into the printed manuals. Therefore, some parts used in your equipment may be

different than those which appear in the parts list of this manual. This sometimes occurs due to

difficulty in parts procurement, but does not alter the function of the equipment When this occurs,

changed material is provided on separate sheets of the manual. If it brings about trouble in

reading this manual, we beg your pardon.

This manual contains all of the repairs information. Repairs and authorized modifications

should be performed only by qualified service personnel to maintain your warranty and to avoid

creating safety hazards. We cannot assume responsibility for any conditions affecting the proper

operation of this equipment which may result from unauthorized repair or modification.

TABLE OF DEFINITIONS AND SYMBOLS

TECHNICAL DIFINITIONS

INCUBATOR TEMPERATURE. Air temperature at a point 10cm above and centered over the

mattress surface.

CONTROL TEMPERATURE. The temperature controller’s set point selected by user.

AVERAGE INCUBATOR TEMPERATURE. The average of the maximum and minimum

incubator temperature achieved during temperature equilibrium.

INCUBATOR TEMPERATURE EQUILIBRIUM. The condition reached when the average

incubator temperature does not vary more than 1.0℃ over a period of one hour.

TEMPERATURE ALARM CHECKOUT STATE. The difference point between the real

temperature and control temperature is within ±0.5℃ and such status lasts for over 10

minute.(When checkout the temperature alarms function, operation should be enter this state.)

TEMPERATURE UNIFORMITY. The amount by which the average temperature at each of four

points 10cm above the mattress surface differs from the average incubator temperature at

incubator temperatures equilibrium.

TEMPERATURE VARIABILITY. The variability of the incubator temperature that will be observed

over a one-hour period after incubator temperature equilibrium has been reached.

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

TEMPERATURE RISE TIME. The time required for the incubator temperature to rise 11℃, when

the air control temperature is at least 12℃ above ambient.

TEMPERATURE OVERSHOOT. The amount by which incubator temperature exceeds average

incubator temperature at incubator temperature equilibrium as a result of an increase in control

temperature additionally the incubator temperature equilibrium shall be restored within 15 minutes

as a result of an increase in control temperature value.

TEMPERATURE CORRELATION—TEMPERATURE INDICATOR VS INCUBATOR

TEMPERATURE. The amount of the air temperature indicator at incubator temperature

equilibrium differs from the incubator temperature.

TEMPERATURE CORRELATION—INCUBATOR TEMPERATURE VS CONTROL

TEMPERATURE. The amount the Average temperature in air mode at incubator temperature

equilibrium differs from the control temperature.

TEMPERATURE CORRELATION-TEMPERATURE INDICATOR VS CONTROL

TEMPERATURE. The amount the air temperature indicator in air mode at incubator temperature

equilibrium differs from the control temperature.

MEASUREMENT POINTS. Measurements are taken at five points in a plane parallel to and

10cm above the mattress surface. One point shall be 10cm above center of the mattress; the

remaining four points shall be centers of four areas formed by lines, which divide both the width

and length in two parts.

NOTE, IMPORTANT, CAUTION AND WARNING

NOTE: A note is inserted in text to point out procedures or conditions that may otherwise be

misinterpreted or overlooked. A note may also be used to clarify apparently contradictory or

confusing situations.

IMPORTANT: Similar to a Note but used where greater emphasis is required.

CAUTION: A Caution is inserted in a text to call attention to a procedure that if not followed

exactly, can lead to damage or destruction of the equipment or improper operation.

WARNING: A Warning is inserted in a text to call attention to dangerous or hazardous conditions

inherent to the operation, cleaning, and maintenance of the equipment that may result in personal

injury or death of the operator or patient.

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SYMBOLS

ATTENTION! CONSULT ACCOMPANYING DOCUMENTS.

Class I Equipment Type BF Applied Part

Protective Earth (Ground) Earth (Ground)

Power On Power Off

Power on for controller Power off for controller

User-Defined Key Set Key

Set Temperature Up Key Set Temperature Down Key

Reset /Silence Key RS232 Terminal

Skin Temperature Probe Skin Temperature Probe connector

connector 1 2

High Water Level Caution, scald!

The VHA Pedestal Rising Key The VHA Pedestal Falling Key

AC Power 220-230V, 50/ 60Hz F Type Fuse 6AL/250V

Mattress Tilt Direction Weight Limit

CE MARKING

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

TABLE OF CONTENTS

SECTION PAGE
1. GENERAL INFORMATION………………………………………………………………………..…1-1
1.1 INTRODUCTION………………………………………………………………….…………………1-1
1.2 DESCRIPTION………………………………………………………...…………………………1-1
1.3 A C C E S S O R I E S … … … … … … … … … … … … … … … … … … … … … … … … … … … … 1 - 2

2. INSTALLATION……………………………………………….………..……………………………2-1
2.1 UNPACKING…………………………………………………….….………………………………2-1
2.2 ASSEMBLING THE HOOD ON THE CABINET…………………………………………………2-1
2.3 ASSEMBL THE CABINET ONTO THE STAND………………………………….………………2-1
2.4 INSTALL THE BABY SCALE……………………………………………………..………………2-4
2.5 GENERAL CHECKING PROCEDURE FOR OPERATION AND FUNCTION………………2-4

3. TECHNICAL INFORMATION…………………………………..……………………………………3-1
3.1 SPECIFICATION…………………………………………………….………………………………3-1
3.2 DESCRIPTION OF OPERATION……………………………………..…………………………3-7

4. PREVENTIVE MAINTENANCE……………………………………………………………………4-1
4.1 GENERAL…………………………………………………………………………..………………4-1
4.2 CLEANING……………………………………………………………………………….…………4-1
4.3 GAS STERILIZATION……………………………………………………………………………4-11

5. SERVICE………………………………………………………………………………………………5-1
5.1 GENERAL……………………………………………………………………………………………5-1
5.2 DISASSEMBLE THE CONTROLLER……………………………………………………………5-1
5.3 REPLACEMENT OF FUSE AND INTERNAL BATTERY……………………………………5-1
5.4 SYSTEM SETTING PROCEDUTES………………………………………………………………5-3

6. REPLESCEMENT PARTS……………………………………………………………….…………6-1
6.1 GENERAL……………………………………………………………………………………………6-1

7. DIAGRAMS………………………………………………………………………..…………………7-1
7.1 GENERAL………………………………………………………………………………..…………7-1

8. DATE PRINTING……………………………………………………………………………………8-1
8.1 INTRODUCTION……………………………………………………………………………………8-1
8.2 CONNECTION BETREEN MICRO-PRINGER AND CONTROLLER…………………………8-1
8.3 OPERATION OF DATA PRINTING SYSTEM……………………………………………………8-2

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 Guidance and manufacture’s declaration – electromagnetic emissions-
for all EQUIPMENT and SYSTEMS

Guidance and manufacture’s declaration – electromagnetic emission

The YP-2000 Infant Incubator is intended for use in the electromagnetic environment specified below. The
customer of the user of the YP-2000 Infant Incubator should assure that it is used in such and environment.
Emission test Compliance Electromagnetic environment – guidance
RF emissions The YP-2000 Infant Incubator uses RF energy
CISPR 11 only for its internal function. Therefore, its RF
Group 1 emissions are very low and are not likely to
cause any interference in nearby electronic
equipment.
RF emission The YP-2000 Infant Incubator is suitable for use in
Class A
CISPR 11 all establishments, other than domestic
Harmonic emissions establishments and those directly connected to the
Class A
IEC 61000-3-2 public low-voltage power supply network that
Voltage fluctuations/ supplies buildings used for domestic purposes.
flicker emissions Complies
IEC 61000-3-3

Page 1of 4
 Guidance and manufacture’s declaration – electromagnetic immunity –
for all EQUIPMENT and SYSTEMS

Guidance and manufacture’s declaration – electromagnetic immunity

The YP-2000 Infant Incubator is intended for use in the electromagnetic environment specified below. The
customer or the user of YP-2000 Infant Incubator should assure that it is used in such an environment.
Electromagnetic
Immunity test IEC 60601 test level Compliance level
environment - guidance
Electrostatic ±6 kV contact ±6 kV contact Floors should be wood,
discharge (ESD) ±8 kV air ±8 kV air concrete or ceramic tile. If
IEC 61000-4-2 floor are covered with
synthetic material, the
relative humidity should
be at least 30%.
Electrical fast ±2 kV for power supply ±2kV for power Mains power quality
transient/burst lines supply lines should be that of a typical
IEC 61000-4-4 commercial or hospital
environment.
Surge ±1 kV differential mode ±1 kV differential Mains power quality
IEC 61000-4-5 ±2 kV common mode mode should be that of a typical
±2 kV common mode commercial or hospital
environment.
Voltage dips, short <5% UT <5% UT Mains power quality
interruptions and (>95% dip in UT) (>95% dip in UT) should be that of a typical
voltage variations on for 0.5 cycle for 0.5 cycle commercial or hospital
power supply input environment. If the user of
lines 40% UT 40% UT the YP-2000 Infant
IEC 61000-4-11 (60% dip in UT) (60% dip in UT) Incubator requires
for 5 cycles for 5 cycles continued operation
during power mains
70% UT 70% UT interruptions, it is
(30% dip in UT) (30% dip in UT) recommended that the
for 25 cycles for 25 cycles YP-2000 Infant Incubator
be powered from an
<5% UT <5% UT uninterruptible power
(>95% dip in UT) (>95% dip in UT) supply or a battery.
for 5 sec for 5 sec
NOTE UT is the a.c. mains voltage prior to application of the test level.

Page 2 of 4
 Guidance and manufacture’s declaration – electromagnetic immunity –
for EQUIPMENT and SYSTEMS that are LIFE-SUPPORTING
Guidance and manufacture’s declaration – electromagnetic immunity
The YP-2000 Infant Incubator is intended for use in the electromagnetic environment specified below. The
customer or the user of YP-2000 Infant Incubator should assure that it is used in such an environment.
Compliance
Immunity test IEC 60601 test level Electromagnetic environment - guidance
level
Portable and mobile RF communications
equipment should be used no closer to any part
of the YP-2000 Infant Incubator, including cables,
than the recommended separation distance
calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
Conducted RF 3Vrms 3 Vrms
⎡ 3.5 ⎤
IEC 61000-4-6 150 kHz to 80 MHz d =⎢ ⎥ P
outside ISM bands a ⎣ V1 ⎦

10 Vrms 10 Vrms
150 kHz to 80 MHz
in ISM bands

Radiated RF 10 V/m 10 V/m

IEC 61000-4-3 80 MHz to 2.5 GHz 80 MHz to 800 MHz

800 MHz to 2.5 GHz

Where P is the maximum output power rating of
the transmitter in watts (W) according to the
transmitter manufacturer and d is the
recommended separation distance in metres (m).
b

Field strengths from fixed RF transmitters, as

determined by an electromagnetic site survey,c
should be less than the compliance level in each
frequency range.d
Interference may occur in the vicinity of
equipment marked with the following symbol:

NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
a
The ISM(industrial, scientific and medical) bands between 150kHz and 80MHz are 6.765MHz to 6.795MHz;
13.553 MHz to 14.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.
b
The compliance levels in the ISM frequency bands between 150kHz and 80MHz and in the frequency range
80 MHz to 2.5GHz are intended to decrease the likelihood that mobile/portable communications equipment could
cause interference if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 is
used in calculating the recommended separation distance for transmitters in these frequency ranges.
c
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land
mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically
with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site
survey should be considered. If the measured field strength in the location in which the YP-2000 Infant Incubator
is used exceeds the applicable RF compliance level above, the YP-2000 Infant Incubator should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the YP-2000 Infant Incubator .
d
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.

Page 3 of 4
 Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM –
for EQUIPMENT or SYSTEM that are LIFE-SUPPORTING

Recommended separation distances between

portable and mobile RF communications equipment and the YP-2000 Infant Incubator
The YP-2000 Infant Incubator is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the YP-2000 Infant Incubator can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the YP-2000 Infant Incubator as recommended below,
according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter
Rated (m)
maximum 150 kHz to 80 MHz 150 kHz to 80 MHz 80 MHz to 800 800 MHz to 2.5 GHz
output power outside ISM bands in ISM bands MHz
of transmitter
⎡ 3.5 ⎤
(W) d =⎢ ⎥ P
⎣ V1 ⎦
0.01 0.1167 0.12 0.12 0.23
0.1 0.3689 0.3795 0.3795 0.7273
1 1.1667 1.2 1.2 2.3
10 3.6893 3.7947 3.7947 7.2732
100 11.6667 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d
in metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is
the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.

NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2 The ISM(industrial, scientific and medical) bands between 150kHz and 80MHz are 6.765MHz to
6.795MHz; 13.553 MHz to 14.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.

NoTE 3 An additional factor of 10/3 is used in calculating the recommended separation distance for
transmitters in the ISM frequency bands between 150kHz and 80 MHz and in the frequency range 80 MHz to
2.5 GHz to decrease the likelihood that mobile/portable communications equipment could couse interference
if it is inadvertently brought into patient areas.

NOTE 4 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.

Page 4 of 4
Regarding the product YP-2000 Infant Incubator which is performing

EMC test:

The declaration （refer to guidance 4pages） must be included into the

operation instruction.

Manufacture declaration:

Signature and seal:

说明:

1.YP-2000 Infant Incubator:表示型号 YP-2000 infant incubator 或者

HKN-90 infant radiant warmer .

表格必须加入产品说明书中,在加入说明书的时候请用相应型号代替,

而不是用问号.
 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SECTION 1
GENERAL INFORMATION

1.1 INTRODUCTION

This manual provides instructions for installation, maintenance and repairs the David Infant

Incubators, Model YP-2000.

This manual is intended for use only by trained, qualified service personnel. Instructions for

the operator of the equipment are provided in a separate operator’s manual.

1.2 DESCRIPTION

On the display of the temperature controller, you can choose Skin, Air Temperature Mode,

humidity, oxygen concentration. And it can indicate Set Temperature, Real Temperature for

air temperature and two skin temperature, oxygen concentration, humidity, and the curve

trend of 2hrs, 4hrs, 12hrs, 24hrs in the mode of chosen control , among of them, the weight

trend is indicated from 1week to 7weeks. In addition, this device can provide the whole visual

and audible alarm system. This service manual includes some instruction about the optional

parts like monitor shelf, oxygen concentration control system and the weight function, if you do

not purchase the optional part, you can omit the relevant instruction.

The infant incubator also includes the following features:

· Four Access doors with a quiet latch.

· The mattress tilt mechanism can be adjusted in degree of ±8.

· An IV Pole with load capacity of 20kg

· X-ray tray

· lift stand.

1.3 ACCESSORIES
Accessories available of use with the Incubators are illustrated in Figure 1.1. Refer to

Section 6 of this manual for part numbers.

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

Monitoring shelf
I.V. Pole Hood
Shelf

Sensor module

Access panel

Mattress tilt mechanism

Temperature controller

Clamp seat

Water reservoir
Small storage compartment

Big storage compartment

Wheel with brake

Increase and Decrease Key

of Pedestal/ The VHA Pedestal

FIGURE 1.1 COMPOSITION

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SECTION 2
INSTALLATION

2.1 UNPACKING
Typically, the Cabinet Stand, the Incubator Main Body are shipped in separate cartons.

When removing the equipment from the cartons, take care not to scratch or otherwise damage

unprotected surfaces. Remove all packing materials from the Shell Assembly.

2.2 ASSEMBLING THE HOOD ON THE CABINET

A. (see Figure 2.1) attach the Main Body securely to the Cabinet Stand with 4pcs inner bolts,

spring washer, flat washer , and the main body and the lift stand is designed in specialty, only if

the power cable of controller from the lift stand is put on the same side with the controller, it

can be installed on the lift stand.

WARNING: The incubator must be attached securely to the stand using the
clamps provided. Failure to do so could result in the incubator
separating from the stand if sufficiently tilted, particularly with the
hood open.

B. Remove the IV Pole (see Figure 2.2)

C. Install tray.

D. Install monitor shelf

WARNING: To prevent the incubator from sliding when parked on and incline, the
cabinet front locking casters must be facing down the incline and
locked.

2.3 ASSEBLE THE CABINET ONTO THE STAND

A. see figure 2.5, install the small and the large cabinet.

B. Connect the terminal of power cable into the socket for power input of lift stand, and the

other terminal connected to the socket on the wall.

Inner hexagon bolt M6 X 45 …………………………….…………………………………………… 4

Spring washer M6 …………………………………………………………………………………… 4

Flat washer M6 ……………………………………………………………………………………….. 4

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

Power socket for controller

Wheel unlocked Wheel locked Insert the plug for controller into the socket

Note: Press the lock for wheel as the arrow 1 indicates to lock the wheel, while press the
lock for wheel as the arrow 2 indicates to unlock the wheel.

Figure 2.1 ASSEBLE THE CABINET ONTO THE STAND

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

Seat

Fix the seat for monitor in the left and right side of the main body with inner hexagon bolt.

I.v. pole
Support for the I.v. pole

Support for the I.v. pole

Clamp

Fix the support for the I.v. pole onto the seat Adjust the height of I.V. Pole
for monitor with clamp and inner hexagon bolts. and tighten it as the arrow indicates.

Figure 2.2 Install the I.V. Pole.

Enlargement figure
Limit line for installing the tray
Tray for I.V. Pole

Inner hexagon bolt

Fixing seat 1

Please note the direction of tray when installing the tray, the terminal with the
label must face the front of the incubator, incorrect installation is forbidden.
The max. load is 3.5kg, please do not put the over-weight things on the tray.

Figure 2.3 Installation of tray for I v, pole

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Shelve

Support for monitoring

Inner hexagon bolt M5×30

Install the support for shelf onto the seat for monitor according to the method in figure 2.2.
insert the terminal of shelf with hole into the support and tighten with inner hexagon.

The max. load of monitor shelf is 8kg, please do not put the over-weight
things on the shelf.

Figure 2.4 Installation of the shelf

Support for big storage drawer Inner the hexagon bolt

Fix the big and small storage drawers on the left side and the right side of the lift stand with
two inner hexagon bolts.

The max. load of big storage drawer is 4kg, while the max. load of small
storage drawer is 2kg , the max. load of the cover above the drawer is 1kgs,
please do not put the over-weight things on it.

Figure 2.5 Installation of storage drawer

2.4 INSTALL THE BABY SCALE

Install the weight system onto the incubator as the step in figure 2.6.

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Lower down the infant bed to the lowest position, open the front panel, put the main deck
with the infant scale onto the mattress tilt mechanism, and it can be pulled out and push into
smoothly as the arrow 1 and 2 indicates in the figure.

Gap

Weight sensor Arrow

The arrow on the weight sensor must aim at the

gap on the sensor socket for the weight system.

1. Hold the plug of weight sensor to insert and pull out the weight sensor,
please do not tear the lead cable to pull out the weight sensor.
2. Please do not bend the connecting point of the sensor.

Insert the plug for weight sensor to the right socket.

Figure 2.6 Installation of weight device

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

2.6 GENERAL CHECKING PROCEDURE FOR OPERATION AND FUNCTION

Incubator must be tested prior to initial use and after each remove of it for cleaning and

maintenance thereafter.

WARNING
1. Infant must be taking out from the incubator before general operation and
functional checkout procedure.
2. Infant incubator must be stopped to use if it cannot pass the following
operation checkout procedure or find any foreseeable trouble. The
troubleshooting must be serviced by qualified person.
3. The checkout procedure related to temperature enable to use, only when
set temperature must be high 3℃ than ambient temperature.

A. Check the wheels

Note: Put the main body before the lift stand, you must check the wheels according to
the following methods. The users should check the wheels regularly to avoid the
wheels loose to cause the danger.

Elevate each end of incubator approximately 2cm and test on each wheel one by one. A

loosened wheel can result in incubator instability or tip-over while Incubator is delivered past

cable, and threshold of door or elevator. DO NOT use Incubator before the loosened wheel is

replaced.

Important: Two people are required to implement the test. One elevates Incubator and

the other check the wheel. The minimum weight of Incubator to be elevated

is approximately 80 kilograms.

B. Check the power cable for the lift stand, and turn on the power.

Note: Make sure the power supply can comply with the specification appearing on the

electric plate on the incubator. For right connection, you must connect the power

cable with the power socket of single-phase and three lines power socket, please

do not use the prolonging cable.

Connect the power cable for lift stand, turn on its switch, at the same time, and turn on the

switch of controller, The device will give sound “di…”, and then the company brand program

version, company name and so on will display on the screen, and it will self-check for RAM,

SRAM, real time clock, EEPROM, communication system, and then it will enter into the control

operation screen, the setting indication light is on. If it does not pass the self-checking, the

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

reason will appear on the screen, and indicate “Please repair it by professional

maintenance man”, that is to say, the device is need repairing.

C. Check the power cut off alarm
When turn on the controller, turn off the power for lift stand or plug off the power cable, the
Power off alarm will occur with the light flashing. If turn on the power for lift stand, and the
controller will start to work again.
D. Checking of lift stand and all parts for hood
Check one by one according the following step.

CHECK THE LIFT STAND

The VHA pedestal rising key

The VHA pedestal failing key

Turn on the general power of the whole unit. Step on the VHA Pedestal Rising Key to make
the stand to rise the maximum height. And then Step on the VHA Pedestal Failing Key to make
the stand to rise the minimum height. Repeat this procedure to make sure that the lift stand can
work smoothly and can be adjust the wanted height.

CHECK THE HOOD OPERATION

CAUTION: Check to remove all the mounted accessories before removing Hood to avoid
disturbance.

Disconnect the connection of sensor box

limit knob

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

Disconnect the connection of sensor box, and then slowly tilt the Hood back until the Hood

locks in place. Pull out the limit knob on the right back of hood along the direction of arrow, and

then, put down the hood.

CHECK FRONT AND BACK ACCESS PANEL

Pawl latch opened

Pawl latch locked

Rotate the pawl Latches and open the Access Panel to the full open position (hanging

straight down). Close the Access Panel and rotate both latches until they are fully engaged.

Both latches must be fully engaged to avoid accidental opening of the panel.

CHECK ACCESS DOOR LATCH AND GASKET

Press the door release of each Access Door simultaneously (including the side doors of the

hood), each Access Door should swing open. Close the doors and check seal.

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CHECK THE INNER WALL

Inner wall unlocked Inner wall locked

Open the front and back panels to check the inner wall is locked or not.

CHECK MATTRESS TILT MECHANISM

Rotate the mattress tilt mechanism clockwise and anti-clockwise and the mattress can be

continuously adjusted within the range of 0-8º.

CHECK INFANT BED

Open the Access Panel and pull outside the infant bed until it can not move. Press the infant

bed to make sure it is properly supported to provide a firm infant platform. Return the mattress

and close Access Panel.

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CHECK THE SENSOR BOX AND ITS CONNECTION

Check the connecting cable of sensor box and the connection of socket for sensor box, and
the connecting port of sensor box must comply with its socket to make sure its correct
connection.

Stator

Pull out the stator on the left side of the sensor box as the arrow indicates, and then pull the
sensor box outward to check whether the sensor box can slide smoothly. When the sensor box
part with the hood, the controller can alarm and indicate: sensor box is wrong. The light
connecting the sensor is on. When the sensor box is placed into its original position and
loosens the stator, the sensor box is firmed, and the alarm will be canceled, and the connecting
light is off.

1. Blocking all gap on the sensor box is forbidden.

2. Pull out and install the sensor box correctly.
3. Sensor box is an important part offering the temperature control for the
incubator, you should operate carefully.

CHECK THE AIR INTAKE MICROFILTER

WARNING: A dirty Air Intake Micro filter may affect oxygen concentration and /or cause
Carbon Dioxide build-up. The filter must be checked on a routine basis and
changed at least every two months.

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Loosen the two thumb screws of the Air Intake Filter Cover and remove the cover. Inspect

the micro filter, if dirty, it should be cleaned. Refer to Section 4 concerning cleaning and

maintenance for additional instructions. Put the filter cover back.

CHECK X-RAY TRAY

Open the front panel to pull out the x-ray tray Take out the x-ray tray as the arrow indicates

E. Check the power off alarm for battery.

Turn on the power supply of controller and enter into the working state, the battery

indication light on the front panel of controller can indicate charging condition of battery inside

of controller. If this light is yellow, it means that the battery is charging; If this light is green, it

means that the battery is full-charging state. The controller can check the voltage of charging

battery automatically during the working procedure and the battery can discharge and charge

automatically.

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F. Check the controller:

Follow the below procedures.

CHECK DEVIATION ALARM (AIR MODE)

Close all of the doors, windows and set the temperature to 32 ºC. Enter into
TEMPERATURE ALARM CHECKOUT STATE, (Refer to Table of definitions and symbols),
increased air temperature display (input warm air into Hood) checks high deviation alarm (+3
ºC deviation alarm). Set temperature to 35ºC. Enter into TEMPERATURE ALARM
CHECKOUT STATE, Open the Access Panel and check low deviation alarm (-3 ºC deviation
alarm). High/Low deviation alarm with light flashing , “Alarm deviation” will appear on the
screen instead of the trend display.
Attention: Deviation alarm is not actuated while Air temperature varies within the range
of set temperature ±0.3ºC. Alarm is actuated when the ambient temperature is
below the set temperature or air is input into Hood while checking down
deviation alarm.

CHECK DEVIATION ALARM ( SKIN TEMPERATURE CONTROL MODE)

Insert the Skin Sensor into the socket 1.

Opening
Arrow

Skin temperature sensors

Sensor plug

The arrow of Skin Sensor must be facing upward.

Insert the Sensor plug directly to the Sensor Receptacle.

1. The Sensor Plug must be inserted into or pulled out of the Sensor Receptacle
with hand tightly holding it. Do Not pull the Sensor by cord.
2. Never place the Skin temperature Sensor under the infant or use it rectally.
3. Don’t bend of the connect plug.

Set temperature to 35ºC. Put Skin Temperature Sensors into troughs with the temperature of
over approximately 37ºC or below 33ºC respectively, enter TEMPERATURE ALARM
CHECKOUT STATE (Refer to Table of definitions and symbols) to check ±1ºC deviation.
High/Low Deviation Alarm with light flashing , “Alarm deviation” will appear on the screen
instead of the trend display.

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Note: If the temperature does not rise or fall, or the difference between the indicating

temperature and the setting temperature is ±1.0℃, there is no deviation alarm

occurring.

Important: You can use two skin sensors onto the sensor box, in skin control mode, you

should insert one skin sensor into the socket 1.

CHECK SKIN TEMPERATURE SENSOR ALARM

Selected Skin Mode Control. Disconnect the skin sensor and socket 1. The audible and

visual alarms should activate. the skin sensor 1 indicate “--.-” with the alarming light flashing,

“Alarm skin sensor 1 fault” appear on the screen instead of the trend display. Reconnect the

skin sensor for socket 1, the incubator can work normally.

Selected Skin Mode Control. Place the skin sensor under the ambient temperature which is

lower than the control temperature 2℃, after the temperature is stable, the device will alarm

with light flashing, “Alarm skin sensor 1 is placed wrong” appear on the screen instead of

the trend display.

CHECK OVER TEMPERATURE ALARM

Select Air or Skin Temperature Control Mode, enter into the working state, Press the air

temperature self-definition key, skin temperature self-definition key, and the setting increasing

key at the same time, at this time, Heating indicator lights illuminate, no indication for the

setting temperature, it means that the controller has entered into the over-temp testing state.

After a while, “Alarm Over Temperature” will appear on the screen instead of the trend

display. Press the Reset/Silence Key to end the Over Temperature Test Mode, and the device

can returned to the working state.

CHECK THE MOTOR

Open the hood, and take out the infant bed, mattress tilt mechanism, main deck and the

cover for heater. Refer to the following figure, hold the fan with hand and turn on the switch for

controller, the device will alarm with light flashing, “Alarm Motor fault” will appear on the

screen instead of the trend display. Press the Reset/Silence Key to end the fan alarm, and the

device can returned to the working state.

Note: Checking the motor fault alarm should be operated after the incubator stops

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working for 45min.

G. Checking the oxygen supplying

AIR IN ENVIRONMENT - 21% OXYGEN CONCENTRATION

1、按住下图所示的第二个自定义功能键后，打开控制仪开关，进入氧浓度校准
界面。按下第一个自定义功能键，系统自动进入 21%氧浓度的校准。

按住第二个自定义功能键，打开控制仪开关

氧浓度校准界面
2、21%氧浓度校准完毕后，先放回传感器盒，再将其稍稍拉出，将带有氧连接
管的氧浓度校准装置与传感器盒连接，输入氧气，再按上述方法进入到氧浓度校准
界面后，按第三个自定义功能键，系统自动进入 100%氧浓度的校准。

传感器盒

氧浓度校准装置

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3、校准完毕后，控制仪进入第一显示界面。
4、若未通过校准，则屏幕显示检测到的故障提示，用户需根据提示解决故障
源，重复本程序，如果故障无法消除，则必须进行维修。
注意：在每次使用供氧系统时，需先对氧浓度传感器进行校准，校准时必须从恒温
罩上拿出传感器盒，使氧浓度传感器处于 21%氧浓度的环境大气之中。

CHECK THE OXYGEN CONCENTRATION MONITORING FUNCTION

a. Put an oxygen concentration analyzer calibrated in the center of mattress.

b. Connect the oxygen input, set the oxygen concentration to 45% O2.

c. After the oxygen concentration is stable, the oxygen concentration analyzer indicates

45% O2, the oxygen concentration on the screen is with the range of 45%±3%.

CHECK OXYGEN CONCENTRATION DEVIATION

Connect the oxygen supplying system and the manual oxygen input port, set the set value of

oxygen concentration 30%, please refer to the table of oxygen concentration to change the

oxygen flow rate, when the indication value of oxygen concentration reaches set value ,

increase or decrease the flow rate, when the indication value of oxygen concentration deviates

away ±5% of set value , the incubator will alarm, ” Alarm O2 deviation” will appear on the

screen instead of the trend display. Press the Reset/Silence Key to end alarm, and the

alarming light will flash until indication value is less than ±5% set value, indication light is off.

Connect the oxygen supplying system and the servo control oxygen input port, set the set

value of oxygen concentration 30%, when the indication value of oxygen concentration reaches

set value , increase the oxygen concentration inside of incubator(input the additional oxygen

concentration) to Check the upper deviation alarm(+5% deviation alarm).

H. Check the humidity system

Check the humidity system when you use it for the first time, or after cleaning.

a. Make the water chamber full of water, and put a calibrated

b. Press humidity self –definition to start up the humidity and to set the humidity at 50%.

c. When the hygrometer reads 50%RH, the humidity window display 50%RH±6%RH.

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CHECK THE HUMIDITY DEVIATION ALARM

Close all doors, and set the humidity control at 40%RH, rise the humidity around the

humidity sensor when the humidity can reach the setting value, the upper deviation alarm will

occur (deviation alarm+15%); set the humidity at 50%RH, when the humidity reaches the

setting value, open the front panel to check the lower deviation alarm (deviation alarm -15%).

When humidity deviation alarm occurs, the alarming light is on; “Alarm humidity deviation”

will appear on the screen instead of the trend. Press silent/reset key to cancel the alarming for

5min, but the alarming light will flash, if the alarming can not solved in 5min, the alarm will

occur again until the indication humidity is not more than 15%RH of setting value, the indicator

light will be off automatically.

Note: If the indicated humidity is more than or lower than 15% of setting value, the

alarming will not occur. When there is deviation alarming during checking, the

ambient humidity is lower than the setting humidity or the air entering the cover is

decreased a lot , the alarm will occur.

CHECK THE WATER SHORTAGE ALARM

Cut off the disconnection of water chamber and the water supplying tube, the humidity

indicates the symbol of water shortage, the circular mark on the right top of screen will appear.

I. Check the weight system

Note: The weight sensor should be calibrated after repairing.

WEIGHT SENSOR CALIBRATION TESTING

a. Take off all things on the infant bed to make sure the cleaning;

b. Press zero self-definition key, the weight indicates 0000g±2g, if exceed this range,

please press the key zero;

c. Put the standard poise of 5000g on the baby scale, and then press the calibrated self-

definition key, the indication will appear the calibration tip, press key No or do not

press any key in 15s, the system will exit the weight calibration procedure. Press key

Yes to confirm , and the system can enter into the calibration state, the indication is

the value of weight in the range of 5000g±2g, when the indication exceeds this range,

press again calibrated self-definition key until the weight indication is in the range of

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5000g±2g. If the indication value can not reach the range of 5000g±2g, then the

babay scale must be repaired.

CHECK THE CONNECTING CIRCUIT OF WEIGHT SENSOR

Disconnect the weight sensor and sensor box to enter into the weight indication interface,

the weight indication window will display the weight sensor failure tips, connect them, and the

controller can cancel the failure and indicate the weight.

J. the checking ends.

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SECTION 3
TECHNICAL INFORMATION

3.1 SPECIFICATION
Specifications for the Incubators are provided in Table 3.1. All specifications maybe subject

to change without advance notice. Open Access Doors and Front Panel or change Mattress

obliquity, which can alter the air flow pattern, may affect temperature uniformity, temperature

variability, the correlation of the Incubator temperature reading to center mattress temperature

and infant skin temperature.

TABLE 3.1 SPECIFICATIONS

POWER SUPPLY REQUIREMENTS ………………………………….…………………AC220V, 50Hz

POWER REQUIREMENTS ………………………………………………………….……………1300VA

POWER OUTLET ……………………………………..…………AC220V,50Hz,Current 3A MAXIMUM

PROTECTIVELY EARTHED …………………………….………………………………………… <0.1Ω

EARTH LEAKAGE CURRENT ……………………………….……………… Normal condition <0.5 mA

Single Fault Condition: < 1mA

PATIENT LEAKAGE CURRENT ……………………………...…………… Normal Condition<0.1mA

Single Fault Condition:<0.5mA

PATIENT LEAKAGE CURRENT

(Mains Voltage On The Applied Part ) …………….. ……………… Single Fault Condition:< 5mA

Refer to IEC601-1, this equipment belongs to Class I, Type BF. Its operation is continuous.

TEMPERATURE CONTROL RANGE AND CORRELATIVE SPECIFICATION

Air Mode Control ……….…………………………...……………………………………………25-37℃

37-39℃ Temperature override mode

Skin Mode Control ……………………………………………………………..……………… 34-37℃

37-38℃ Temperature override mode

Temperature Rise Time**(typical +22℃ ambient ) ………………………………………… <40minutes

Temperature Variability** …………………………………………………………….……………… <0.5℃

Temperature Uniformity **(level mattress) ………………………………………………………… <0.8℃

(After Incubator Temperature Equilibrium is reached)

Precision of Skin Sensor ………………………………………………………….………………… <0.3℃

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TABLE3.1 SPECIFICATIONS (Continued)

HUMIDITY CONTROL

The working time after filling the distilled water in the water chamber …………under the humidity

60%RH, at least 12hrs

The volume of water chamber ………………………………………………………………… 1000ml

Humidity indication range…………………………………..…………………………0%RH～99%RH

Resolution of humidity…………………………………………………………………………………1%

Humidity control range…………………………………………………………0%~90%(adjust by 1%)

accuracy of humidity condition(environment temperature 20℃～40℃, environment humidity

10%～90% ) ……………………………………………………………………………………… ±6%RH

Note: Going on the premise of much higher of ambient humidity, it may be impossible to

reach the lower humidity.

OXYGEN CONCENTRATION MONITORING/CONTROL

Indication range of oxygen concentration……………………………………………………0%～99%

Indication resolution of oxygen concentration…………………………………….…………………1%

Indication Accuracy of oxygen Concentration……………………………...………………………±3%

Setting range of oxygen concentration………………..……………………20%~60%(adjust by 1%)

Life time of oxygen sensor……………………at most 10000hrs under 100% oxygen concentration

Operation pressure for decreasing valve…………………………..………………………Max. 1Mpa

Adjustable range of decreasing valve………………………………………………… 0.05～0.7MPa

WEIGHT INDICATION

Weight range…………………………………………………………………………………100g~8000g

Resolution of weight indication…………………………………………………………………………1g

Accuracy of weight indication………………………………………………………………………±10g

ALARM
Power failure ……………………………………………………………………………Actives if power failure
Motor failure………………………………..……………Actives if motor failure, or motor run speed too low

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TABLE 3.1 SPECIFICATIONS (Continued)

Fan failure……………..…Activates if the cool fan failed inside of the controller or the sensor box
Sensor Failure…………………………………………………………..…Air temperature sensor failure
**Skin temperature sensor 1 is out of position
Skin temperature sensor 1 failure
Isolated temperature sensor failure
Air flow temperature sensor failure
Sensor box placed wrong alarm……………………………………………Sensor box is placed wrong
ROM failure alarm ……………………….…….. ROM error in the main MCU inside of the controller
ROM error in the client MCU inside of the sensor box
RAM failure alarm …………….………………… RAM error in the main MCU inside of the controller
RAM error in the client MCU inside of the sensor box
SRAM failure alarm …………………………………..……………….. SRAM error inside of controller
EEPROM failure alarm …………………..……………………….. EEPROM error inside of controller
Real time clock failure alarm ………………..…………….. Real time clock error inside of controller
Communication failure alarm …………… Communication error inside of controller or sensor box
ADC alarm ……………………………..…. Analog-to-Digital Converters error inside of sensor box

TEMPERATURE ALARM
Temperature deviation alarm …………………….……………………. lower air or skin temperature
Higher air or skin temperature
Over temperature alarm ……………………………….….. Temperature inside incubator is too high
Air flow temperature over alarm ……………. ………………………. Air flow temperature is too high
Temperature heater system failure alarm ………..………..…….. Temperature heater system error

OXYGEN CONCENTRATION ALARM

Oxygen concentration deviation alarm ……………………….. lower /higher oxygen concentration
Oxygen sensor failure alarm ….………………….…………………………. Oxygen sensor 1 failure
Oxygen sensor 2 failure
Oxygen sensor different alarm ………………..………………… It is different in two oxygen sensors

HUMIDITY ALARM
Humidity deviation alarm ………………………………….………………………lower/higher humidity
Humidity heater system alarm …………………………………..……… Humidity heater system error
Humidity sensor alarm ……….……………………………….……….………. Humidity sensor failure

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TABLE 3.1 SPECIFICATIONS (Continued)

ENVIRONMENT TEMPERATURE (please do not use this model out the stipulated range)
Operating Range………………………………………………………….……………………………+20-+30℃
Storage Range…………………………………………………………..……………………………-20～+55℃

ENVIRONMENT HUMIDITY
Operating Range…………………………………………………………………30-75%RH Non-condensing
Storage Range………………………………………………..………………………<93%RH Non-condensing

ATMOSPHERIC PRESSUR
Shipment and Store atmospheric pressure range……………..……………………………500hPa-1060hPa
Operating atmospheric pressure range………………………………………………………700hPa-1060hPa

AIR VELOCITY

Ambient Air Velocity………………………………………………………………………………………<0.3m/s

WHOLE UNIT
The height from the mattress to ground(the lift stand is in the lowest position) ………..………about 98cm
The height from the mattress to ground(the lift stand is in the highest position) …………..…about 113cm
The height (the lift stand is in the highest position)……………………………….……..………………155cm
Length……………………………………………………………………………….……………..…………106cm
Width……………………………………………………………………………………………………………68cm
The weight of main body ……………………………………………………………………………about 58kg
The weight of lift stand…………………………………………………………….…………………about 53kg
Max. load of I.V.Pole……………………………………………………………………….…………………2kg

Max. load of large storage drawer…………………………………...………………………………………4kg

Max. load of small storage rawer……………………………………………………………………………2kg

Max. load of cover for storage drawer………………………………………………………………………4kg

Infant mattress length…………………………………………………………………………………………1kg

Max. load of infant bed………………………………………………………………………………………10kg

Max. load of shelf………………………………………………………………………………………………8kg

OTHER SPECIFICATION
The width of mattress………………………………………………….……………………………………………38cm
The length of mattress………………………………………………………………………………………………74cm

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TABLE 3.1 SPECIFICATIONS (Continued)

Mattress Tilt mechanism…………………………………………..…………Can be adjusted within ±8º

Noise level within Hood Environment……………………………………………...……..……≤55dB(A)

Base on surrounding environment noise below 45dB(A)

Carbon Dioxide (CO2) Level Within The Hood …………..Less than0.5% when a mixture of CO2 in

air is delivered at 750ml/minat a point 10 cm

above the center of the mattress

Air Velocity Over Mattress…………………………………………………….………less than 0.35m/s

Data store frequency (curve period/ store frequency)

Temperature………………………………………………………………………24hrs/once every 1min

Humidity……………………………………………………………………………24hrs/once every 1min

Oxygen concentration……………………………………………………………24hrs/once every 1min

weight…………………………………………….…………………………………7weeks/once every 1hr

RESET/SILENT KEY

Press Reset/Silent Key to silence audible alarm for 5 minutes when the following alarms occur

(can silence the oxygen concentration alarm for 110s), and the alarm is restored in 5 minutes/110s

Alarms are automatically cancelled (except over temperature alarm) if alarm condition no longer

exists. Press Reset/Silent Key twice in series to directly cancel alarms and Incubator returns to

the set state.

· Temperature deviation Alarm

· humidity deviation Alarm

· O2 deviation Alarm

· Sensor failure Alarm

· Motor failure Alarm

· Over Temperature Alarm

The service life of incubator is the period from the date of purchasing to discarding as
useless, generally 8 years.

*Refer to Skin Mode control

**Refer to Table of Definitions and Symbols for Measurement Points

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TABLE 3.1 SPECIFICATIONS (Continued)

FACTORY DEFAULT SETTING ( ORIGINAL STATE)

Temperature control Mode……………………………………..…………Air temperature control Mode

Air set temperature…………………………………………..…………………………………………32℃

Skin set temperature……………………………………………...……………………………………34℃

Humidity setting value………………………………………………………………………………20%RH

Setting value of oxygen concentration monitoring…………………..……………………………20%O2

Temperature units……………………………….……………………………………………………… ℃

Curve mode……………………………………………………………………………air temperature 2hrs

ATTENTION: Open Access Panel or door or the use of other baby bed, supplies or other

equipment within the incubator, which can alter the air flow pattern, may affect

temperature uniformity, temperature variability, the correlation of the incubator

temperature leading to center mattress temperature and skin temperature.

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3.2 DESCRIPTION OF OPERATION

3.2.1 General

This section contains a functional description and detailed theory of operation of the

equipment. A system block diagram of the Controller is shown in Figure 3.2 and 3.3.

The control of temperature, humidity, and oxygen concentration is achieved by means of the

forced air circulation system as shown in Figure 3.1. A controlled amount of room air is drawn

through the air intake filter by means of the motor-driven impeller on the Controller and then

drawn back to motor though air return filter. Circulated air flows through temperature sensing

sensor. Temperature Controller automatically modulates the temperature inside Hood

according to the temperature sensed by the air temperature sensing sensor. When the Access

Panel of the Hood is open, the Air Curtain Cover is raised permitting a potion of the air to flow

upward past the opening creating a warm air circulation which minimizes the drop in air

temperature in the Incubator.

FIGURE 3.1 AIR CIRCULATION SYSTEM

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Motor test
Keyboard

Humidity control
Displayer
Main
MCU O2 servo control

I/O Control
Temperature heater control A

Air temperature sensor

`

Skin temperature sensor 1

Skin temperature sensor 2

ADC Humidity sensor

Client MCU A
Oxygen sensor 1

Oxygen sensor 2

Weight sensor module

Isolated temperature sensor

ADC
Air flow temperature sensor

Client MCU B

Temperature heater control B

FIGURE 3.2 CONTROLLER FUNCTIONAL BLOCK DIAGRAM

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Start
INT0

Initialization
Fan detection

Data display
Return

INT1
YES
Key checking

A/D Sampling
Key handling
NO
Return

Data handling

T0，T2

YES Timer
Trouble checking

Return
Alarm
NO identification
Series port
interruption
Heating control

Data transfer

Data display

Return

Figure 3.3 Controller functional block diagram

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3.2.2 Temperature Control

Incubator temperature is regulated using either Incubator air or infant’s skin temperature as

the controlling parameter. A desirable mode is selected by a front panel key.

In either mode of operation, the heater output is proportional to the amount of heat required

to maintain the desired temperature. In Air Control Mode, the air temperature can be

maintained from 25ºC to 37ºC (39ºC to be reached by Override Key) as indicated by the Set

Temperature Display setting. The Incubator air temperature is monitored by a sensor located

below deck and compared with the Set Temp Display setting. The information from this sensor

is supplied to the heater control circuitry. Actual Air Temperature displays by the Real

Temperature Display. A separate Temperature Sensor beside the Air Temperature Sensor

serves as a backup to limit the Incubator temperature to between 39ºC and 40ºC; at this

temperature range, a separate Over Temperature alarm is activated, the heater is shut off.

In Skin Temperature Control Mode, the infant’s skin temperature can be maintained as

indicated by the Set Temperature Display from 34.0 to 37.0ºC (37ºC to 38ºC in Temperature

Override Mode). Skin sensor 1 is attached directly to the infant’s skin; the information from the

sensor is supplied to the heater control circuitry which proportions the heater output to maintain

the Baby’s Temperature at the Set Temperature setting. IN skin control mode, the isolated

sensor is regarded as the back-up device to control the maximum temperature. If the

temperature is over high, the heater will be switched off.

In skin Temperature Control Mode, “skin 1” of the screen can indicate the real skin

temperature, and the air temperature is also indicated to be as reference. If in the air

temperature control mode, skin sensor 1 is still attached to the skin of baby, at the same time,

the air temperature will be indicated, the screen also indicates the value of skin sensor 1, but

the control function does not work.

IMPORTANT: You can plug two sensors of skin sensor into the skin sensor socket. For

the skin temperature control mode, plug the skin sensor to the socket 1. The

skin sensor in socket 2 can measure the temperature where the probe of

skin sensor located, not the monitoring function under any control mode.

In skin temperature control mode, if the skin sensor 1 does drop off from the socket, and the

“skin 1“ of the screen can indicate “- -.-”，the alarm will occur, and the heater will be cut off.

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3.2.3 Oxygen Concentration Monitoring/control System

Oxygen concentration monitoring system and oxygen concentration servo control system are

optional function. The monitoring and the controlling can come true through the oxygen

concentration inside of hood measured by the oxygen concentration sensor. Users can set the

oxygen concentration control value from 20%O2 to 60%O2.the deviation alarm is set at ±5%O2.

If the oxygen concentration exceeds or is lower than the setting value, the alarm will occur with

information indication. When the alarm occurs, to the oxygen concentration monitoring system,

the oxygen supplying should be continued according to the setting amount; to oxygen

concentration servo control system, he oxygen supplying will be cut off automatically.

3.2.4 Humidity Control System

Humidity control system is an optional function. The humidity inside of incubator should be

adjusted through the humidity as the control parameter. The temperature controller can control

the humidity automatically to keep the humidity from the humidity sensor near the setting value.

Users can set the humidity control range from 20%Rh to 90%RH. This incubator has the

humidity deviation alarm and water shortage monitoring system, and the deviation alarm will be

set at ±15%RH automatically, the alarm will occur with information indication. When the system

is short of water the humidity will indicate the water shortage symbol to tip that the user should

add water.

3.2.5 Alarms

Alarms are used for monitoring the controller in normal working state. When the incubator is

working, the system can test the system working condition through the alarm test procedure.

Power Failure: If primary power to the Incubator failed or the power cable is disconnected,

the alarm will occur, and the Power Fail Indicator lights. This alarm can be canceled only by

restoring the primary power or setting the Incubator Power Switch off.

Motor Alarm: If the motor is damaged, power supply is cut off, or the motor speed is lower

than 1000rpm or stops working, the alarm will occur with light flashing, and the screen

indicates “Alarm Motor Fault”. These alarms can not be reset until the alarm will be solved.

Sensor Failure:

In air temperature mode, Sensor Alarm can be activated by short-circuited, open-circuited or

disconnected, the alarm will occur with light flashing, and the screen indicates “Alarm Air

Sensor Fault”.

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In skin temperature mode, Sensor Alarm can be activated by short-circuited, open-circuited

or disconnected of skin sensor 1, the alarm will occur with light flashing, and the screen
indicates “Alarm Skin Sensor 1 Fault”; when the skin sensor 1 is not on the right position, the
alarm will occur with light flashing and long alarms, the screen indicates “Alarm Skin Sensor 1
is placed wrong”.
Sensor Alarm can be activated by short-circuited, open-circuited or disconnected for the
isolated temperature sensor, the alarm will occur with light flashing, and the screen indicates
“Alarm Isolated Sensor Fault “.
Sensor Alarm can be activated by short-circuited, open-circuited or disconnected for the air
flow temperature sensor, the alarm will occur with light flashing, and the screen indicates
“Alarm Air flow temp. Sensor Fault “.
In oxygen module start-up state, Alarm can be activated when the oxygen sensor 1 is not
installed or oxygen senor itself has failure or there is problem about the connection of oxygen
sensor 1, the alarm will occur with light flashing and the screen indicates “Alarm O2 Sensor 1
Fault”.
In oxygen module start-up state, Alarm can be activated when the oxygen sensor 2 is not
installed or the oxygen senor itself has failure or there is problem about the connection of
oxygen sensor 2, the alarm will occur with light flashing, and the screen indicates “Alarm O2
Sensor 2 Fault”, at the same time, cut off the valve of oxygen concentration servo system.
In oxygen module start-up state, Alarm can be activated when the oxygen concentration
differences between oxygen sensor 1 and oxygen sensor 2 is 3% O2 , the alarm will occur with
light flashing, and the screen indicates “Alarm O2 sensors are different”.
Alarm can be activated if the humidity sensor failed, the alarm will occur with light flashing,
and the screen indicates “Alarm Humidity Sensor Fault”.
Over Temperature Alarm: In air temperature control mode, the incubator temperature does
not exceed 38℃(setting temperature ＜37℃），or does not exceed 40℃(setting temperature
＞37℃)；or In skin temperature control mode, the incubator temperature does not exceed
40℃, the alarm will occur with light flashing, and the screen indicates “Alarm Over
Temperature”. At the same time, cut off the power of the temperature heater. This alarm is not
self-resetting and cannot be silenced and canceled until the alarm condition is corrected.
Air flow Over Temperature Alarm: When the air flow temperature beside of the
temperature system heater and fan motor is over, detecting by air flow temperature sensor, the
alarm will occur with light flashing, and the screen indicates “Alarm Air flow Temp. Over Fault”.
At the same time, cut off the power of the temperature heater. This alarm is not self-resetting
and cannot be silenced and canceled until the alarm condition is corrected.

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Temperature Deviation Alarm: This alarm is actuated if the temperature measured by the

skin sensor 1 or air temperature fluctuates from set temperature as follows. The deviation

alarm will occur with a flashing light, and the screen indicates “Alarm Temperature Deviation”.

Air Temperature: ±3.0ºC

Skin Temperature: ±1.0ºC

The alarm will be canceled automatically if the alarm will be solved.

Oxygen concentration Deviation Alarm: Alarm can be activated if the indicated oxygen

concentration is away from the setting value ±5%, the alarm will occur with light flashing, and

the screen indicates “Alarm O2 Deviation”.

Humidity Deviation Alarm: Alarm can be activated if the indicated humidity is away from

the setting value ±15%, the alarm will occur with light flashing, and the screen indicates “Alarm

Humidity Deviation”.

ROM failure alarm:

If ROM of the main MCU inside of the controller failed, it means that the program stored

inside of the main MCU is wrong, the alarm will occur with light flashing, and the screen

indicates “Alarm ROM of main MCU Fault”, at the same time, cut off the power of the

temperature heater and the humidity heater, and also cut off the valve of the oxygen servo

control system.

If ROM of the client MCU A (type: MS1210) inside of the sensor box failed, the alarm will

occur with light flashing, and the screen indicates “Alarm ROM of client MCU A Fault”, at the

same time, cut off the power of the temperature heater and the humidity heater, and also cut

off the valve of the oxygen servo control system.

If ROM of the client MCU B (type: AT89C4051) inside of the sensor box failed, the alarm will

occur with light flashing, and the screen indicates “Alarm ROM of client MCU B Fault”, at the

same time, cut off the power of the temperature heater and the humidity heater, and also cut

off the valve of the oxygen servo control system.

SRAM failure alarm: If SRAM inside of the controller failed, the alarm will occur with light

flashing, and the screen indicates “Alarm SRAM Fault”, at the same time, cut off the power of

the temperature heater and the humidity heater, and also cut off the valve of the oxygen servo

control system.

EEPROM failure alarm: If EEPROM inside of the controller failed, the alarm will occur with

light flashing, and the screen indicates “Alarm EEPROM Fault”, at the same time, cut off the

power of the temperature heater and the humidity heater, and also cut off the valve of the

oxygen servo control system.

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RAM failure alarm:

If RAM of the main MCU inside of the controller failed, it means that the program stored
inside of the main MCU is wrong, the alarm will occur with light flashing, and the screen
indicates “Alarm RAM of main MCU Fault”, at the same time, cut off the power of the
temperature heater and the humidity heater, and also cut off the valve of the oxygen servo
control system.
If RAM of the client MCU A (type: MS1210) inside of the sensor box failed, the alarm will
occur with light flashing, and the screen indicates “Alarm RAM of client MCU A Fault”, at the
same time, cut off the power of the temperature heater and the humidity heater, and also cut
off the valve of the oxygen servo control system.
If RAM of the client MCU B (type: AT89C4051) inside of the sensor box failed, the alarm will
occur with light flashing, and the screen indicates “Alarm RAM of client MCU B Fault”, at the
same time, cut off the power of the temperature heater and the humidity heater, and also cut
off the valve of the oxygen servo control system.
Real time clock failure alarm: If the Real time clock inside of temperature control failed, the
alarm will occur with light flashing, and the screen indicate “Alarm Real Time Clock Fault”.
Temperature heater system failure alarm: If the heating circuit of temperature control
system inside if controller failed , the alarm will occur with light flashing, and the screen
indicates “Alarm Temperature heater system Fault”, at the same time, cut off the power of the
temperature heater.
Communication failure alarm:
If the communication between the main MCU inside of controller and the client MCU A (type:
MS1210) inside of sensor box failed, the alarm will occur with light flashing, and the screen
indicates “Alarm Communication A Fault”, at the same time, cut off the power of the
temperature heater and the humidity heater, and also cut off the valve of the oxygen servo
control system.
If the communication between the client MCU A (type: MS1210) and the client MCU B (type:
AT89C4051) inside of sensor box failed, the alarm will occur with light flashing, and the screen
indicates “Alarm Communication B Fault”, at the same time, cut off the power of the
temperature heater and the humidity heater, and also cut off the valve of the oxygen servo
control system.
Wrong place of Sensor box alarm: if the sensor box is not put in the right position, the
alarm will occur with light flashing, and the screen indicates “Alarm Sensor box is placed
wrong”, at the same time, t cut off the power of the temperature heater and the humidity heater,

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and also cut off the valve of the oxygen servo control system. The alarm will be canceled
automatically if the alarm will be solved.
ADC failure alarm: if the Analog-to-Digital Converters (TLV2548, TlV2544) inside of the
sensor box or the internal Analog-to-Digital Converter of the client MCU (type: MS1210) failed,
the alarm will occur with light flashing, and the screen indicates “Alarm ADC 1 Fault” , “Alarm
ADC 3 Fault”, or “Alarm ADC 2 Fault”, at the same time, cut off the power of the temperature
heater and the humidity heater, and also cut off the valve of the oxygen servo control system.
Fan failure alarm:
If the connection of the cool fan inside of the controller failed or stops working, the alarm
will occur with light flashing, and the screen indicates “Alarm Fan 1 Fault”.
If the connection of the cool fan inside of the sensor box failed or stops working, the alarm
will occur with light flashing, and the screen indicates “Alarm Fan 2 Fault”, at the same time,
cut off the power of the temperature heater and the humidity heater, and also cut off the valve
of the oxygen servo control system.
Humidity heating system failure alarm: If the heating circuit of humidity control system
inside of controller failed, the alarm will occur with light flashing, and the screen indicates
“Alarm Humidity heater system Fault”, at the same time, cut off the power of the humidity
heater.
Note: If the water tank is short of water, it will cut off the power of the humidity heater,
please add the distilled water at once.
When the oxygen module is switched off setting in the sensor box, the screen will indicate
“O2 Module Switched off”; when the oxygen module is switched off setting by software, the
screen indicates “O2 Module Off”, the user can set it by the front panel; when the humidity
module is switched off setting in the sensor box, the screen indicates “Humidity Module
Switched off”

3.2.4 Silent Hand Ports, Iris Ports and IV Soft Port

There is operation window in the front and back of Incubator for two physicians’ operation. IV Soft
Port is designed in the way that the infusion tube can be connected on the patient of infant through
Soft Port without opening the front panel of incubator.

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SECTION 4
PREVENTIVE MAINTENANCE

4.1 GENERAL
The section provides cleaning and maintenance instructions. Where necessary, disassembly

instructions are provided. Maintenance other than that provided in this section should be

performed only by qualified service personnel. Calibration procedures should be performed at

2 year intervals.

WARNING: Disconnect all the connections to Incubator before cleaning and

maintenance, especially the connection to Oxygen Supply.
Do not clean and maintain Incubator in the environment full of oxygen
may cause burning.

4.2 CLEANING
The incubator must be sterilized and cleaned before using for another patient. The

incubator must be sterilized and cleaned when using for first time after purchasing. The

incubator is not sterilized when delivering, so the Incubator should be thoroughly cleaned and

disinfected at least once a week. Cleaning can most effectively be accomplished by

disassembling, then grouping the parts and/or assemblies in categories according to the

method of cleaning required.

WARNING: Infant must be taking out from the incubator before cleaning and
functional checkout procedure.

4.2.1 Disassembly before cleaning

ATTENTION: For routine cleaning there is no need to separate the Hood/Base assembly
from the Cabinet Stand. If separation is necessary, refer to the Installation
Section.
1. Cut off the power supply of lift stand, and pull off the power cable. Disconnect all
connecting wire of sensor box, and raise the hood slowly.
Caution: Before raising the hood, please make sure that you have disconnected all
connecting wire between the hoods and other auxiliary devices to avoid
causing the interruption for raising the hood.
2. Remove the x-ray tray from the infant bed.
3. See the following figure, remove the infant bed. (If there is the baby scale, please
disconnect the wire of weight sensor first)

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Push the infant bed to the end of hood as the arrow 1 indicates, and then raise the infant bed

as the arrow 2 indicates, at last, take out the infant bed as the arrow 3 indicates.

Figure 4.1 Removing the infant bed

4. See figure 4.2, pull out the mattress tilt mechanism on two side of bed.

Figure 4.2 Take out the mattress tilt mechanism

5. Unscrew the bolts for fixing the main deck, and take out the main deck as the figure 4.3

indicates.

Figure 4.3 Take out the main deck

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6. See figure 4.4, take out the cover for heater.

Figure 4.4 Take out the cover for heater

If the heater is too hot, and it will burn the skin. Therefore, raking out the
cover for the heater or touching the heater must be done after the incubator
stops working at least for 45min.

7. See figure 4.5, take out the water chamber.

Spanner for water tank

2

Water chamber 1

Pull outward the spanner of for water tank, Press the blue lock as the arrow 1
indicates, and at the same time, pull out pull out the water tube as the arrow
the water tank. 2 indicates, meanwhile, tale out the
water chamber.

Figure 4.5 Take out the water chamber

8. See figure 4.6, take out the humidifier.

Note: You can not take out the humidifier for cleaning until the temperature controller

has alarm for water shortage, and the humidifier is dry.

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Unscrew the fixed nuts on the humidifier and take out the humidifier.

Jack
Humidifier groupware
Bolt

Disconnect the power cable on the humidifier groupware. Press the bolt to disconnect the

bolt of connecting wire.

Press the blur lock as the arrow 1 indicates, and pull out the oxygen supplying tube as the
arrow 2 indicates.

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Open the lock to loose the connecting wire.

Unscrew the heat dissipation slice upward.

NOTE: The direction for unscrewing the heat dissipation slice in way of anti-clock wise.

Cover For Bolt

Cap

Pull out the heater upward, and unscrew the Hold the fan, and loose the cover for bolt,
cover carefully with the spanner draw the fan upward
NOTE: When loosening the humidity device, and make sure that the water is used up, or
else, the water can flow out to wet the heating circuit when take it out.

Evaporator

Unscrew 6 pcs of fixing bolt on the evaporator Press the blue button as the arrow 1 indicates,

and take out evaporator as the arrow 2 indicates

Figure 4.6 Take out the humidifier

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9. See figure 4.7, take out the oxygen supplying tube of servo control oxygen input port.

Unscrew the fixing nut of oxygen supplying tube, and pull out the oxygen supplying tube.

Note: Disconnect all connection when sterilizing.

Figure 4.7 Take out the oxygen supplying tube

10. Remove Access Door gaskets and plastic sleeves and remove Iris Port plastic sleeves.

Remove Access Door cuff.

11. Remove Soft Port for IV from the Hood.

12. Loosen the two screws off the Air Filter Cover and remove the Air Filter Cover.

4.2.2 CLEANING

A. Detergent

A Neutral detergent or disinfectant registered by the national agency should be used, but

only after the Incubator is empty and disassembled as described in paragraph 4.2.1. When

using any detergent or disinfector, follow the manufacturer’s directions for use. After removing

all solid wastes and contaminants from the disassembled parts clean them as follows.

B. Skin Sensor

Use a disinfectant-detergent to thoroughly clean all surfaces, then dry with a clean cloth or

paper towel. Do not steep Sensor into disinfectant-detergent.

C. Soft Port for IV, Gasket and Sleeves for Access Door and Iris Door

Fill the Suitable Container with a proper detergent, Allow parts to soak as recommended by

the cleaning solution’s manufacturer, and then clean them with a clean cloth or paper tower.

D. Controller, out shell and the electric stand

Caution: Be careful when cleaning the controller to avoid the liquid to enter into it.

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Clean all surfaces with the clean cloth dipped detergent and then dry it with clean cloth.
Check whether there is any drop on the bottom of water tank, if yes, clean it with
detergent/disinfector.
Caution: some chemical detergent may cause electric conducting or some leftover may
produce the dust of electric conducting or the accumulated dirt. Please do not
make the detergent touch any electric parts. Or splash any detergent on the
surface of electric parts.
E. Incubator Hood, sensor and Inner Wall
The inner wall clings to the front door panel or the back door panel of the incubator, press
the bolt of the inner wall, open the inner wall. Press the inner wall, and at same time, move it
as the arrow 1 indicates to take out the inner wall.

Figure 4.8 Take out the inner wall

Use a disinfectant-detergent to thoroughly clean all surfaces, including sensor box, inner wall
and all doors and windows. Make sure that you can clean all holes and hollow, and then dry
them with a clean cloth or paper towel.
CAUTION: Alcohol can cause crazing of the clear Acrylic Hood. Do not use alcohol for
cleaning.
Do not expose the hood assembly to direct radiation from germicidal lamps.
Ultraviolet radiation from these sources can cause cracking of gaskets, fading
of paint, and crazing of the clear Acrylic Hood.
F. Heater and fan
CAUTION: Without cleaning the heater and fan, the fiber pileup may prevent the air flow,
so it further affects temperature controlling and the over-high oxygen
concentration.
Clean all piled fiber on the heater and fan. Using the clean cloth with detergent to clean all
surface of fan, and then clean it with cloth.

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G. Infant mattress, infant bed, mattress tilt mechanism, main deck, drawer and the

cover for heater

Clean all surface with detergent and dry it with clean cloth.

H. Infant bed

Divide the infant bed, clean the dirt inside of bed, clean the surface of infant bed and the

sensor with soft cloth dipped the detergent, and then dry it with clean cloth or paper tower.

Note: if there is baby scale inside of incubator, you must clean it carefully, please do not put

the weight sensor into the detergent and disinfector.

I. Air Intake Micro filter

Do not attempt to clean or reverse the micro filter. If visibly dirty, or older than 2 months or

damaged, it should be replaced. Before installing a new filter, clean the micro filter Trough and

Cover with a disinfectant-detergent.

ATTENTION: A dirty Inlet Filter may affect oxygen concentration and/or cause the pileup

of carbon dioxide. Be sure to change the air filter frequently in the place of

full dust.

J. Water chamber and its cover

Water chamber and its cover can be sterilized with disinfector or autoclaving. Make sure that

the cover is not on the top of water chamber.

K. Evaporator

Pour into the evaporator the proper detergent / disinfector, and clean and sterilize all surface

and hollow of humidifier, and clean them with cloth and paper tower.

Note: Please do not wet the connector during cleaning.

L. Oxygen supplying tube

Clean the surface of oxygen supplying tube with clean cloth. You should replace it with new

one when it is damaged.

4.2.3 REINSTALLMENT AFTER CLEANING

ATTENTION: Before reassembling parts into Incubator, check carefully if there is any

crack or damage. Some disinfectant-detergent may cause crazing of plastic

parts in Incubator.

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A. Install the evaporator into the humidifier groupware according the opposite order of

disassemble.

Note: Make sure all bolts of connecting wires are connected correctly; please tighten

the evaporator and the connectors to avoid the water overflowing; and place the

humidifier back to its original position and firm it.

B. Install the cover of heater.

C. Install the main deck.

Caution: please make sure to raise the hood before installing the main deck. Or else, it

will damage the main deck and the hood.

D. Install the mattress tilt mechanism on the main deck.

E. Install the infant bed and x-ray cassette.

Note: If there is baby scale, after installing the infant bed, please connect the weight

sensor and the sensor box correctly.

F. Install the mattress. Please observe and touch to check whether there is any holes or

damages on the mattress to prevent the liquid entering into the sponge. Please replace it when

the infant mattress is damaged.

G. Install the sleeve and the gasket for access door and Iris door.

Slowly put the Hood down and rotate the Iris Plastic sleeve (see Figure 4.14). Install Iris Port

Plastic Sleeves and Gaskets according to Figure 4.15; install Soft Port for IV according to

Figure 4.16. Replace them if they are already damaged.

Install the smaller diameter elastic band of a new Fold back and slip elastic band over

sleeve over the inner ring of the port housing. the outer ring of the port housing.

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Rotate outer ring to close. If properly installed, the sleeve will open again if rotation is reversed.

Figure 4.9 Installation of Iris Entry Port Sleeve

Install Access Door Gaskets Install Access Door Sleeves

Figure 4.10 Installation the sleeve and the gasket of access door

Note: If the incubator is sterilized by the gas, please install the gasket and sleeve after

sterilizing. If it is hard to install the cirrhosis gasket of access door, please emerge

it into the hot water, and then install it.

H. See figure 4.11, Install Soft Port for IV. please replace it when it is damaged.

Figure 4.11 Install Soft Port for IV

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I. Install the air filter: install the air filter and tighten the fixing bolts.
J. Install the water chamber.
Connect the water chamber and the water infusion tube, see figure 4.12, put it back to the
original position and put on the cover of water chamber, push back the water chamber as the
arrow indicates.
Note: When connect the water infusion tube and the water chamber, pull the tube to
make sure that it can not drop from the water chamber. Make sure the firm
connection to avoid the water leaking.

You must use the distilled water in the water chamber, or else, it is easy to breed
bacteria in hot and wet environment.

Figure 4.12 Install the water chamber

K. Install the oxygen supplying tube

Connect the servo control oxygen input port and the oxygen supplying tube correctly.
Note: The oxygen supplying tube must connect the input port correctly, or else, it may
cause the leaking of oxygen.

4.3 GAS STERILIZATION

Prior to gas sterilization, the entire Incubator should be thoroughly cleaned as described
elsewhere in this section. All parts need to be replaced such as iris sleeves, air filter materials,
etc. should be removed. New replacement parts should be installed after sterilization.
ATTENTION: During gas sterilization, Temperature Controller must be removed to avoid
hazards. Clean the Temperature Controller according to section 4.2.2.
CAUTION: Sterilization temperature should not exceed 54.5°C.
Upon completion of gas sterilization, an aeration period of 16 to 24 hours should be allowed.
The controller should be properly secured in place and the Incubator should be operated in a
dry condition for the entire period of aeration at a temperature of 32 to 35°C. After aeration, if
the unit is not to be used immediately, a disposable dust cover should be placed on the
Incubator.
IMPORTANT: A complete functional checkout procedure should be performed before
the infant incubator use.

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SECTION 5
SERVICE
5.1 GENERAL
This section provides the replacement of Internal Battery, Controller system setting procedures and
troubleshooting procedures.
5.2 DISASSEMBLE THE CONTROLLER
1. See figure 5.1, uncrew the fixing bolt beside of power switch of controller.

Figure 5.1 Unscrew the fixing bolts

2. See figure 5.2, take out the controller.

Figure 5.2 Take out the controller

3. Disconnect all connection on the back of controller, and unscrew the bolts on two sides of
contrtoller, and you can open the cover for the controller.

5.3 REPLACEMENT OF FUSE AND INTERNAL BATTERY

5.3.1 Replace the fuse
A. See figure 5.3, unscrew the fuse's cover to replace 2pcs fuse F3AL/250V

Figure 5.3

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B. See figure 5.4, open the outer shell of controller.Open the fuse's cover T type fuse
T400mAL/250V and T800mAL/250V on power board with tools to replace the fuse. Unscrew he fuse's
cover T type fuse T160mAL/250V of power transformer to replace the fuse.

Fuse’S Seat

Fuse’S Seat

Figure 5.4
Note: You must cut off the power supply when replacing the fuse, and then pull off the power
cable, replace the fuse according to the marked specification.
5.3.2 Replace internal battery
See figure 5.5, open the battery fastener to replace the internal battery.

Figure 5.5

NOTICE
· Replacing the internal battery, put the plastic pad at the bottom of the battery back to its position,
battery fastener must connect the positive and negative of battery correctly, if connection failed, it
will cause the internal batter unusable and power falure alarm.
The service life of internal battery is three years, which can be rechargeable.
· Battery will be automatically charged when the temperature controller is in operation, do not charged
outside of the incubator.
· The incubator should be used GP17R8H Ni-MH 8.4V/170mAh rechargeable battery, to ensure safety,
do not dismantle battery. Connect the battery correctly, do not use other type battery.
· Charge could not influence battery content when the battery is full. (Switch on the power supply for
temperature controller)
· Disused battery should not be put into fire or water to avoid explosion or leakage.
· Disused battery should be disposal accordingly to local law, can’t throw away randomly.
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5.3.3 Replace heater'

See figure 5.6, rotate anticlockwise to replace heater.

Figure 5.6

5.4 SYSTEM SETTING PROCEDURES

5.4.1 General

This paragraph provides controller system setting procedures. This procedure is only available to

have training and qualified service personnel.

NOTICE: Please operation must be follow by the procedures of item 5.4.3. if it is not necessary,

do not change data of system setting avoid hazards.

5.4.2 Brief introduction

System setting procedures include the following contents:

1. Airtemp Compensation

2. Air flow Compensation

3. Skintemp 1 Compensation

4. Skintemp 2 Compensation

5. Humidity Compensation

6. Incubator Address

7. Alarm-set Fan Motor

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8. Alarm-set Airtemp Low

9. Alarm-set Airtemp High

10. Alarm-set Skintemp Low

11. Alarm-set Skintemp High

12. Alarm-set Humidity Low

13. Alarm-set Humidity High

14. Alarm-set O2 Low

15. Alarm-set O2 High

16. Set Minimum Humidity

17. Set Maximum Humidity

18. Set Minimum O2

19. Set Maximum O2

20. Set Minimum Airtemp

21. Set Maximum Airtemp

22. Set Minimum Skintemp

23. Set Maximum Skintemp

24. Set Over-temp A for <37℃

25. Set Over-temp B for >37℃

26. Alarm-set Air flow A for <37℃

27. Alarm-set Air flow B for >37℃

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5.4.3 Procedure

At first, connected power supply, press and hold keyand turn on the power supply for 3s

and loose key , LCD screen will indicate like the figure 5.5:

Figure 5.5 Password input screen

See figure 5.5, press or key to switch the number, and them press the muner key to

input the password 78722, press key to enter into the system setting screen--first screen infigure

5.6. At this time, press the select key to choose the different item to set, the left arrow can show the

current item, at this time, press or key to set the data of current item. If not pressing any

key for 20s, the system will exit the setting screen.

Press the key store to store the current setting, press the menu key to enter into the second screen,

press the exit key to exit the system setting procedure.

The first screen The second screen

Figure 5.6 System setting screen

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A． Cursor
Select
Press this key to move the arrow downward“ ” that indicated on the left side of screen. The arrow can
move circularly, if you miss the wanted item, you have to move the arrow to the last item and restarting the
arrow-moving. After choose the wanted item, press or key to change the setting value of the
selected item.

B． Save
Press this key to store the current changed setting value.
C． Menu
Press this key to enter into the second screen:
Press this key to cancel all setting value of the changed item, and
Factory Set
make all data return to the initial setting value.
Press this key to make all setting value of the changed item to retun to
Data Recall
the backup value.

Data Copy Press this key to backup the setting value of current item.

Back
Press this key to exit the second screen and return to the first screen.
D．
Back

Press this key to store the current setting value of the changed item, and exit the system setting screen,
and the controller will enter into the working state to self-check.
z 1. Airtemp Compensation
Stipulate the temperature compensation of air sensor, and the setting value is +050~-050 ，
“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature
meansured by air sensor increases by 0.2℃ as compensation, “-013” means that the temperature
meansured by air sensor decreases by 1.3℃ as compensation.
Note: this temperature compensation acts on isolated temperature sensor.
z 2. Air flow Compensation
Stipulate the temperature compensation of air flow temperature sensor, and the setting value is
+050~-050，“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the
temperature meansured by air flow temperature sensor increases by 0.2℃ as compensation, “-013”
means that the temperature meansured by air flow temperature sensor decreases by 1.3℃ as
compensation.
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z 3. Skintemp 1 Compensation
Stipulate the temperature compensation of skin sensor 1, and the setting value is +050~-050，
“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature
meansured by skin sensor 1 increases by 0.2℃ as compensation, “-013” means that the temperature
meansured by skin sensor 1decreases by 1.3℃ as compensation.
z 4. Skintemp 2 Compensation
Stipulate the temperature compensation of skin sensor 2, and the setting value is +050~-050，
“+”and“-”mean the increasing and descreasing value. For example, “+002” means that the temperature
meansured by skin sensor 2 increases by 0.2℃ as compensation, “-013” means that the temperature
meansured by skin sensor 1decreases by 1.3℃ as compensation.
z 5. Humidity Compensation
Stipulate the relative humidity compensation of humidity sensor, and the setting value is +050~-050，
“+”and“-”mean the increasing and descreasing value. For example, “+008” means that the relative
humidity （%）meansured by humidity sensor increases by 8% as compensation, ”-118” means that the
relative humidity （%）meansured by humidity sensor decreases by 18% as compensation
z 6. Incubator Address
The address of the infant incubator, and the range of number is 0~40, For example, 001 means the
machine No. 1, 015 means the machine No. 15. This number is just used for the central monitoring
operation.
z 7. Alarm-set Fan Motor
Stipulate the setting methods of alarm value for motor speed. Seeting range is 000~255，every 001
means 20rpm. For example, “050” means 1000rpm, if the speed of motor is lower than this speed, it will
alarm.
z 8. Alarm-set Airtemp Low
Stipulate the setting methods of alarm value for low deviation in air mode. Seeting range is 000~050，
for example, “008” means 0.8℃, if the temperature measured by the air sensor is lower 0.8℃ than the
setting temperature, it will alarm.
z 9. Alarm-set Airtemp High
Stipulate the setting methods of alarm value for high deviation in air mode. Seeting range is
000~050，for example, “008” means 0.8℃, if the temperature measured by the air sensor is higher
0.8℃ than the setting temperature, it will alarm.
z 10. Alarm-set Skintemp Low
Stipulate the setting methods of alarm value for low deviation in skin mode. Seeting range is
000~050，for example, “008” means 0.8℃, if the temperature measured by the skin sensor 1 is lower
0.8℃ than the setting temperature, it will alarm.

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z 11. Alarm-set Skintemp High

Stipulate the setting methods of alarm value for high deviation in skin mode. Seeting range is

000~050，for example, “008” means 0.8℃, if the temperature measured by the skin sensor 1 is higher

0.8℃ than the setting temperature, it will alarm.

z 12. Alarm-set Humidity Low

Stipulate the setting methods of alarm value for humidity low deviation. The setting value is 000~020.

For example, “008” means that the relative humidity 8% for low deviation, if thehumidity measured by

the humidity sensor is lower 8% than the setting value, it will alarm.

z 13. Alarm-set Humidity Higih

Stipulate the setting methods of alarm value for humidity high deviation. The setting value is 000~020.

For example, “008“ means that the relative humidity 8% for high deviation, if thehumidity measured by

the humidity sensor is higher 8% than the setting value, it will alarm.

z 14. Alarm-set O2 Low

Stipulate the setting methods of alarm value for oxygen concentration low deviation. The setting value

is 000~010. For example, “005” means that the oxygen concentration 5% for low deviation, if

thehumidity measured by the oxygen concentration sensor is lower 5% than the monitoring value, it will

alarm.

z 15. Alarm-set O2 High

Stipulate the setting methods of alarm value for oxygen concentration high deviation. The setting

value is 000~010. For example, “005” means that the oxygen concentration 5% for high deviation, if

thehumidity measured by the oxygen concentration sensor is higher 5% than the monitoring value, it

will alarm.

z 16. Set Minimum Humidity

Stipulate the setting methods of lower limit for humidity setting. The lower limit value is 000~050. For

example, “020”means that Min. setting value is 20% rlative humidity.

z 17. Set Maximum Humidity

Stipulate the setting methods of lower limit for humidity setting. The lower limit value is 030~100. For

example, “090” means that Min. setting value is 90% relative humidity.

z 18. Set Minimum O2

Stipulate the setting methods of lower limit for oxygen concentration. The lower limit value is 000~030.

For example, “020” means that Min. setting value is 20% oxygen concentration.

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z 19. Set Maximum O2

Stipulate the setting methods of upper limit for oxygen concentration. The upper limit value is

030~065. For example, “060” means that Min. setting value is 60% oxygen concentration.

z 20. Set Minimum Airtemp

Stipulate the setting methods of lower limit for air temperature. The lower limit value is 000~340. For

example, “250” means that Min. setting value is 25.0℃.

z 21. Set Maximum Aritemp

Stipulate the setting methods of upper limit in the mode of air setting temperature＞37℃. The upper

limit value is 370~390. For example, “390” means that Min. setting value is 39.0℃.

z 22. Set Miminum Skintemp

Stipulate the setting methods of lower limit for skin temperature. The lower limit value is 300~340. For

example, “340” means that Min. setting value is 34.0℃.

z 23. Set Maximum Skintemp

Stipulate the setting methods of upper limit in the mode of skin setting temperature＞37℃. The upper

limit value is 370~390. For example,” 380” means that Min. setting value is 38.0℃.

z 24. Set Ovet-temp A for <37℃

Stipulate the setting methods of over-temp alarm in the mode of air temperature（setting temperature

＜37.0℃）.The alarm value is 375~390. For example, “375 “ means that over-temp alarm value is

37.5℃.

z 25. Set Over-temp B for >37℃

Stipulate the setting methods of over-temp alarm in the mode of air temperature（setting temperature

＞37.0℃）or in the skin mode. The alarm value is 385~400. For example, “395” means that over-temp

alarm value is 39.5℃.

z 26. Alarm-set Air flow A for <37℃

Stipulate the setting methods of air flow temperature alarm in the mode of air temperature（setting

temperature＜37.0℃）.The alarm value is 385~480. For example, “375 “ means that over-temp alarm

value is 37.5℃.

z 27. Alarm-set Air flow B for >37℃

Stipulate the setting methods of air flow temperature alarm in the mode of air temperature（setting

temperature ＞37.0℃）or in the skin mode. The alarm value is 405~520. For example, “395” means

that over-temp alarm value is 39.5℃.

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5.5 PROCEDURE OF TROUBLE-SHOOTING

5.5.1 Introduction

Section 5.5.4 and 5.5.5 will offer the repairing methods of control. In section 5.5.4, it offers the alarm

code when the alarm of the temperature control happens; in section 5.5.4, it gives the details of the

repairing methods by the way of flow chart.

Note: Before deal with the troubles, you should confirm the correct set of the system set

procedure.

5.5.2 Test device

During the trouble-shooting procedure, it needs the following test devices, and you can replace it with

the same effect device.

z Figure clock, FLUKE 17BType

z 31.0℃ skin temperature simulation

5.5.3 Temperature simulation device

31.0℃skin temperature simulation

Simulation sensor plug Resistor R

Resistor R=23170Ω/0.25W/0.5%

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5.5.4 ERROR CODES

The system LCD can indicate Error type during alarming (except for Power failure alarm), see Table 5.1

TABLE 5.1 ERROR CODES

TYPE EXPLANATION AND CORRECTIVE ACTION

Alarm Air Sensor Fault Refer to Flow chart 5.1

Alarm Skin Sensor 1 Fault Refer to Flow chart 5.2

Alarm Isolated Sensor Fault Refer to Flow chart 5.3

Alarm Air flow Temp. Sensor Fault Refer to Flow chart 5.4

Alarm Skin Sensor 1 is placed wrong Check position of the skin sensor 1

Alarm Humidity Sensor Fault Refer to Flow chart 5.5

Alarm O2 Sensor 1 Fault Refer Flow chart 5.6

Aalrm O2 Sensor 2 Fault Reference Flow chart 5.6

Alarm O2 Sensors are different Refer to Flow chart 5.7

Alarm Over Temperature Refer to Flow chart 5.8

Alarm Motor Fault Refer to Flow chart 5.9

Alarm Fan 1 Fault Refer to Flow chart 5.10

Alarm Fan 2 Fault Refer to Flow chart 5.11

1. Check and confirmed all ports, access panel

are closed well.
Alarm Temperature Deviation
2. Check and keep incubator away from others
heating source
1. Check and confirmed all ports, access panel
are closed well.
Alarm Humidity Deviation 2. Check whether there is water in water
chamber
3. Check the humidifier
1. Check and confirmed all ports, access panel
are closed well.
2. Check the oxygen flow rate
Alarm O2 Deviation
3. Check the Oxygen concentration sensor
(output voltage should be >9mV)
4. Calibrate the Oxygen concentration sensor
Alarm ROM of main MCU Fault Check the main MCU inside of the control unit
Alarm RAM of main MCU Fault Check the main MCU inside of the control unit
Alarm ROM of client MCU A Fault Replace the sensor board
Alarm RAM of client main MCU A Fault Replace the sensor board

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TABLE 5.1 ERROR CODES (Continued)

TYPE EXPLANATION AND CORRECTIVE ACTION

Check the client MCU B (type: AT89C4051)inside
Alarm ROM of client MCU B Fault
of the sensor box, or replace the sensor box board
Check the client MCU B (type: AT89C4051)inside
Alarm RAM of client MCU B Fault
of the sensor box, or replace the sensor box board
1. Check whether the sensor box is in the right
position
Alarm Sensor box is placed wrong 2. Check the switch at the bottom of sensor box
and the connection of glass hood
3. Replace the sensor box

Alarm ADC 1 Fault Refer to Flow chart 5.12

Check the client MCU A (type: MS1210)inside of
Alarm Error ADC 2 Fault
the sensor box, or replace the sensor box board
Alarm ADC 3 Fault Refer to Flow chart 5.13

Alarm Temperature Heater System Fault Refer to Flow chart 5.14

Alarm Humidity Heater System Fault Refer to Flow chart 5.15

Alarm Air Sensor is different form Isolate

Refer to Flow chart 5.16
Sensor

Alarm EEPROM Fault Replace the main MCU in the control Unit

1. Check the connection between SRAM and MCU

Alarm SRAM Fault
2. Check SRAM（U7 on main board）

1. Check the connection between RTC and MCU

Alarm Real Time Clock Fault
2. Check RTC（U23 on main board）

Power failure alarm Refer to Flow chart 5.17

5.5.5 TROUBLESHOOTING FLOW CHART

Turn off the power supply before reparing, remove the controller and sensor box from incubator and

check the connecting wire from sensor box to the controller. Befor turn on the controller and sensor box,

keep the power supply +5V, +12V of controller, elements and leads normal. Connect the wire of sensor

box to the socket at the back of controller. In working state, at the same time, press key 4 and upper key,

it will display the real temperature of isolated sensor at the display area of air sensor, display the real

temperature of air flow sensor at the display area of set value, display the battery voltage at the area of
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skin sensor 1, and display motor value at the area of skin sensor 2( “7.2” means 1440 rpm), and the

oxygen concentration indication window can indicate the second oxygen concentration, so it is easy for

the repairman to find the problem.

Alarm Air Sensor Fault

Check connection as follows:

Air sensor — J3 to J5 on prepositive
No sensor boad --- J1 to J2 on sensor
Connection is ok?
board --- J13 to J11 on powerboard ---
J1 on mainboard

Yes

Use a resistor 18030 Ohms instead of the air sensor (J3, on

the prepositive sensor board), and turn on the power supply

Display some value that is

37℃ add air temperature No
Alarm again？ Replace the air sensor (thermistor)
compensation in the system
setting procedure

Yes

2.63V on the No
On sensor board Check R8, C2
pin 6 of U4？

Check U4

FLOW CHART 5.1 Alarm Air Sensor Fault

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Alarm Skin Sensor 1 Fault

Check connection as follows:

No Skin sensor 1 — J4 to J2 on sensor
Connection is ok?
board --- J13 to J11 on powerboard
--- J1 on mainboard

Yes

Use 31℃ Skin temperature simulation device instead

of the skin sensor 1(23150Ohms, decimalist), and turn
on the power supply

Display some value that is

31℃ add skin temperature Alarm again？ No
Replace the skin sensor 1
Compensation in the system
setting procedure

Yes

2.32V on the No
On sensor board Check R9, C3
pin 7 of U4？

Check U4

FLOW CHART 5.2 Alarm Skin Sensor 1 Fault

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Alarm Isolated Sensor Fault

Check connection as follows:

No Isolated sensor — J2 to J5 on
Connection is ok?
prepositive sensor boad --- J1 to J2
on sensor board --- J13 to J11 on
powerboard ---J1 on mainboard
Yes

Use a resistor 18030 Ohms instead of the isolated

sensor (J2, on the prepositive sensor board), and
turn on the power supply

Display some value that is

Alarm again？ No
37℃ add air temperature Replace the isolated sensor (thermistor)
compensation in the
system setting procedure

Yes

2.63V on the No
On sensor board Check R11, C4
pin 6 of U7？

Check U7

FLOW CHART 5.3 Alarm Isolated Sensor Fault

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Alarm Air flow Temp. Sensor Fault

Check connection as follows:

Connection is ok? No
Air flow sensor — J12 to J11 on
powerboad --- J2 on sensor board

Yes

Use a resistor 18030 Ohms instead of the air flow

sensor (J12-1, 2 Pin, on powerboard), and turn on
the power supply

Display some value that is

37℃ add air flow Alarm again？ No
Replace the air flow sensor
temperature compensation
in the system setting

Yes

2.63V on the No
On sensor board Check R26, C12
pin 7 of U7？

Check U7

FLOW CHART 5.4 Alarm Air flow Temp. Sensor Fault

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Alarm Humidity Sensor Fault

Check connection as follows:

No Humidity sensor —J4 to J5 on
Connection is ok?
prepositive sensor boad --- J1 to J2
on sensor board --- J13 to J11 on
powerboard --- J1 on mainboard
Yes

On prepositive Pin J4-2 is within No Check the humidity sensor

sensor board the range of and the power Vcc
0.6V~4.5V？

Yes

The voltage on pin No

On sensor board U4-10 is same as pin Check C1, R27, R1
J1-5 ？

Check U4

FLOW CHART 5.5 Alarm Humidity Sensor Fault

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Alarm O2 Sensor 1 Fault

Check connection as follows:

No O2 sensor 1 — J6 to J2 on sensor
Connection is ok?
board --- J13 to J11 on powerboard
--- J1 on mainboard

Yes

Mesure the voltage between pin J6-4 and pin

J6-3, and named “O2 Vol.” below

No
O2 Vol. > 9mV？ Replace the O2 sensor 1

Yes

Calibration the O2 sensor. (See the

second 6 of operator’s manual)

Alarm again？ No
Exit

Yes

The voltage on pin No Check R28, R29, R32, R34,

On Sensor board U11-1 is same as C6, C40, U11
“O2 Vol.”?

Yes

To sheet 2

FLOW CHART 5.6 Alarm O2 Sensor 1 Fault (Sheet 1of 2)

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From sheet

The voltage on pin

No
On Sensor board U4-11is same as Check U11
“O2 Vol.”?

Check U4

FLOW CHART 5.6 Alarm O2 Sensor 1 Fault (Sheet 2of 2)

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Alarm O2 Sensors are different

The difference value of No Check the main MCU

two O2 sensor is>3%? (U20 on the mainboard)
Yes

Yes

Mesure the voltage between pin J6-4 and pin

J6-3, and named “O2 Vol.” below

No
O2 Vol. > 9mV？ Replace the O2 sensor 1

Yes

Calibration the O2 sensor. (See the

section 6 of operator manual)

Alarm again？ No
Exit

Yes

Replace the mainboad and sensor board

FLOW CHART 5.7 Alarm O2 Sensors are different

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Alarm Over Temperature

Heating source No
Far away from the heating source
is nearby?

Yes

The isolated No
Check as flow chart 5.3
sensor is ok?

Yes

Switch on the controller, set the minimum value in

air mode, and keep working state 20 minutes.

The air flow is hot No Restart the controller, if this

from the air outlet?
alarm occurs again, please
replace the mainboard

Yes

Ac power between Exit, check the power and

No
On powerboard pin 1 and pin4 of J9 the heater
is a active?

To sheet 2

FLOW CHART 5.8 Alarm Over Temperature (Sheet 1of 2)

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From sheet 1

Control of the relay No

On powerboard Replace the solid state relay S1
S1 is active?

Yes

The voltage on No
On powerboard the C port of Check the connection of audion Q1
audion Q1 is about 0V?

Yes

The voltage on the No

On powerboard B port of audion Q1 Replace Q1
is about 0.8V?

Yes

No Check the connection between

On mainboard Output of pin U3-2 is
the powerboard and mainboard
high level?

Replace the mainboard

FLOW CHART 5.8 Alarm Over Temperature (Sheet 2of 2)

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Alarm Motor Fault

Motor is No
To sheet 2
rotating?

Yes

Pulse on pin 4 of No
On powerboard Check the signal board of motor
J12?

Yes

Pulse on pin No
On powerboard Check U5
8 of U5?

Yes

No
On mainboard Pulse on pin 16 of Check the connection
U20? between the mainboard
and the powerboard

Yes

Yes
On mainboard The motor speed is Replace motor
1000rpm below?

No

Replace U20

FLOW CHART 5.9 Alarm Motor Fault (Sheet 1of 2)

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From sheet 1

The power of No Check the power connection

motor is Ok?

Yes

Can motor rotate No

On powerboard with hand help? Replace motor

Yes

Replace the capacitor of motor

FLOW CHART 5.9 Alarm Motor Fault (Sheet 2of 2)

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Alarm Fan 1 in the control unit Fault

No
Fan in the controller Check the fan and the connection
is rotating?

Yes

Votage on pin 3 of No
On powerboard Adjust the registor regulator VR1 to
J2 is about 1.5V?
make the voltage on pin 3 of J2 as
1.5 V

Yes

Voltage on pin 3 of No
On powerboard Check resistor R16, R17
U3 is about 1.8V?

Yes

No
On powerboard Voltage on pin 6 of Check resistor R4, R14
U3 is about 0.5V?

Yes

No
On powerboard Output of pin U3-1 Replace U3
is high level?

Yes

To sheet 2
FLOW CHART 5.10 Alarm Fan 1 in the control unit Fault (Sheet 1of 2)

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From sheet 1

Output of pin U3-7 No Repalce U3

On powerboard
is high level?

Yes

Output of pin No
On powerboard Check U5 and the connenction
U5-6 is low level? between U5 and U3

Yes

Intput of pin U11-4 No Check the connenction between

On mainboard
is high level? mainboard and powerboard

Yes

Replace the mainboard

FLOW CHART 5.10 Alarm Fan 1 in the control unit Fault (Sheet 2of 2)

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Alarm Fan 2 Fault

Fan in the controller No Check the fan and the connection

is rotating?

Yes

Votage on pin 2 of No
On sensor board Adjust the registor regulator VR1
J1 is about 1.5V?
to make the voltage on pin 2 of
J1 as 1.5 V

Yes

No
On sensor board Voltage on pin 5 of Check resistor R13, R14
U1 is about 1.8V?

Yes

No
On sensor board Voltage on pin 2 of Check resistor R6, R12
U1 is about 0.5V?

Yes

No
On sensor board Output of pin U1-1 Replace U1
is high level?

Yes

To sheet 2

FLOW CHART 5.11 Alarm Fan 2 Fault (Sheet 1of 2)

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From sheet 1

Output of pin U1-7 No

On sensor board Repalce U1
is high level?

Yes

Input of pin U5-46 No

On sensor board Check the connenction
is high level? between U5 and U1

Yes

Intput of pin U5-47 No

On sensor board Check the connenction
is high level?
between U5 and U1

Yes

Replace the senso rboard

FLOW CHART 5.11 Alarm Fan 2 Fault (Sheet 2of 2)

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Alarm ADC 1 Fault

Voltage on the joint No

On sensor board of R18 and R19 is Check R18, R19
2.5V?

Yes

Votage on pin 13 No
On sensor board Check the connection between
of U4 is 2.5V? U4 and R18, R19

Yes

The connection No
On sensor board Connecting coreectly or
between U4 and
replace the sensor board
U5 is ok?

Yes

Replace the sensor board

FLOW CHART 5.12 Alarm ADC 1 Fault

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Alarm ADC 3 Fault

Voltage on the No
On sensor board joint of R22 and Check R22, R23
R23 is 2.5V?

Yes

Votage on pin 8 of No
Check the connection between
On sensor board
U7 is 2.5V? U7 and R22, R23

Yes

The connection No Connecting coreectly or

On sensor board between U7 and replace the sensor board
U9 is ok?

Yes

Replace the sensor board

FLOW CHART 5.13 Alarm ADC 3 Fault

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Alarm Temperature Heater System Fault

Is heater No
On powerboard connected with pin Connect well
1 and pin 4 of J9 ?

Yes

Switch off the power of incubator, and disconnect

the heater from the controller, then measure the
resistance value of the heater.

The resistance No
Replace the heater
value of heater is
abour 165 Ohms?

Yes

Disconnect the sensor box and the mainboard, connect pin

11 of J11 and pin 7 of J13 on powerboard to VCC power,
and then switch on the controller.

Voltage on B port No
On powerboard of audion Q1, Q3 is Check R1, Q1, R3, R8, Q3

about 0.7V?

Yes

To sheet 2

FLOW CHART 5.14 Alarm Temperature Heater System Fault (Sheet 1of 3)

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From sheet 1

Voltage on control No
On powerboard port of relay S1, K1 Replace Q1, Q3
is about 12V?

Yes

Cnnect pin 11 of J11 and pin 7 of J13 on powerboard to

Gnd power instead, and then switch on the controller.

Voltage on B port of Yes

On powerboard Check R1, Q1, R3, R8, Q3
audion Q1, Q3 is about
0.7 V?

No

Voltage on control Yes

On powerboard port of relay S1, K1 Replace Q1, Q3
is about 12V?

No

Disconnect these connections for testing, and

connect the mainbaord and the sensor box, then
switch on the controller.

To sheet 3

FLOW CHART 5.14 Alarm Temperature Heater System Fault (Sheet 2of 3)

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From sheet 2

No
Alarm again? Exit

Yes

Replce the relay S1 and K1

No
Alarm again? Exit

Yes

Check the connection between powerboard

and mainboard, or replace the mainboard.

No
Alarm again? Exit

Yes

Check the connection between powerboard and

sensor board, or replace the sensor board.

FLOW CHART 5.14 Alarm Temperature Heater System Fault (Sheet 3of 3)

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Alarm Humidity Heater System Fault

Is heater No
On powerboard connected with pin Connect well
2 and pin 5 of J9 ?

Yes

Switch off the power of incubator, and disconnect the

heater from the controller, then measure the
resistance value of the heater.

The resistance No Check the water, the temperature

value of heater is switcher of heater and the humidity
abour 360 Ohms? heater.

Yes

Disconnect the sensor box and the mainboard, connect

pin 12 of J11 on powerboard to VCC power, and then
switch on the controller.

Voltage on B port No
On powerboard of audion Q2 is Check R2, Q2
about 0.7V?

Yes

To sheet 2

FLOW CHART 5.15 Alarm Humidity Heater System Fault (Sheet 1of 3)

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From sheet 1

Voltage on control No
On powerboard port of relay S2 is Replace Q2, Q2
about 12V?

Yes

Cnnect pin 12 of J11 on powerboard to Gnd power

instead, and then switch on the controller.

Voltage on B port of Yes

On powerboard audion Q2 is about Check R2, Q2
0.7 V?

No

Voltage on control Yes

On powerboard port of relay S2 is Replace Q2, Q2
about 12V?

No

Disconnect these connections for testing, and

connect the mainbaord and the sensor box, then
switch on the controller.

To sheet 3

FLOW CHART 5.15 Alarm Humidity Heater System Fault (Sheet 2of 3)

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

From sheet 2

No
Alarm again? Exit

Yes

Replce the relay S2

No
Alarm again? Exit

Yes

Check the connection between powerboard and

mainboard, or replace the mainboard.

FLOW CHART 5.15 Alarm Humidity Heater System Fault (Sheet 3of 3)

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Alarm Air Sensor is different from Isolated Sensor

On prepositive The voltage on pin No Check the air sensor and isolated
Sensor board J2-1 is same as pin
sensor on socket J2 and J3
J3-1?

Yes

The voltage on pin No Check the connection between the

On Sensor board J1-1 is same as pin prepositive sensor board and the
J1-3? sensor board

Yes

The voltage on pin No Check R8, R11, C2, C4, and

On Sensor board U4-6 is same as pin
their connections
U7-6?

Yes

Replce U4 and U7

No
Alarm again? Exit

Yes

Replace the sensor board

FLOW CHART 5.16 Alarm Air Sensor is different from Isolated Sensor

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Power failure alarm

The power of the No

controller is ok? Check the power

Yes

No
On DC powerboard The fuse F3 is ok? Replace the fuse F3

Yes

The output voltage on No Check the fuse F1, F2,

On DC powerboard second part of the
and the transfromer
transform is correct?

Yes

The output voltage No Check U2, U3, C2, C4,

On DC powerboard
on J1 is correct? C5, C7, C8, C10, C11, C12

Yes

The voltage on pin No

On main board 6 of U11 is about Check R20, R21
3.75V?

Yes

Replace the mainboard

FLOW CHART 5.17 Power failure alarm

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SECTION 6
REPLACEMENT PARTS
6.1 GENERAL
This section provides parts lists for infant incubator. Part numbers of operator replaceable parts,

accessories and one-off parts are provided as below:

Figure 6.1 Parts location diagram, hood assembly (Sheet 1-2)

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

Figure 6.1 Parts location diagram, hood assembly (Sheet 2-2)

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

Table 6.1 Hood assembly replacement parts list

ITEM No. DESCRIPTION PART NUMBER

1 Hood P03 001 00

2 Access panel P03 002 00

3 Window touch head 03 013 00

4 Latch seat 03 023 00

5 Cross groove oval head bolt M3×12 See No. of standard Parts

6 Flat washer 3 See No. of standard Parts

7 Spring washer 3 See No. of standard Parts

8 Clamp P03 003 00

9 Iron scrap P03 004 00

10 Spring P03 005 00

11 Cross groove oval head bolt M3×16 See No. of standard Parts

12 Nut M3 See No. of standard Parts

13 Soft port for I.V. Pole P03 006 00

14 Rubber stopper No.7 03 045 00

15 Left pad (I) P03 007 00

16 Left gemel for front door P03 008 00

17 Cross groove oval head bolt M5×16 See No. of standard Parts

18 Flat washer 5 See No. of standard Parts

19 Spring washer 5 See No. of standard Parts

20 Right pad (I) P03 009 00

21 Left pad (II) P03 010 00

22 Back Left gemel (I) P03 011 00

23 Back Left gemel (II) P03 012 00

24 Front right gemel (I) P03 013 00

25 Front right gemel (II) P03 014 00

26 Front left gemel (II) P03 015 00

27 Position limit pole P03 016 00

28 Cross groove countersunkhead bolt M3×10 See No. of standard Parts

29 Inner front panel P03 017 00

30 Heat insulation board for Inner front panel P03 018 00

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Table 6.1 Hood assembly replacement parts list (Continue)

ITEM No. DESCRIPTION PART NUMBER

31 Cross groove head bolt ST2.9×13 See No. of standard Parts

32 Fix fittings for inner wall P03 020 00

33 Special bolt P03 021 00

34 Right pad (II) P03 022 00

35 Back right gemel (I) P03 023 00

36 Back right gemel (II) P03 024 00

37 Fastener P03 025 00

38 Shield cap P03 026 00

39 Door panel sheath 03 035 00

40 Shield sheath 03 031 00

41 Cross groove head bolt ST2.9×9.5 See No. of standard Parts

42 Cross groove head bolt ST2.9×9.5 03 030 00

43 Spring （Ⅳ） 03 034 00

44 Latch handle 03 024 00

45 Spring （I） 03 025 00

46 Roller latch sheath 03 028 00

47 Peg against hood 03 026 00

48 O type seal circleφ12×1.9 See No. of standard Parts

49 Access door’s cuff 03 033 00

50 Rubber seal for window（I） P03 027 00

51 Rubber seal for window（II） P03 019 00

52 Torsional Spring 03 021 00

53 Window’s shaft 03 020 00

54 Bolt cover M3 03 051 00

55 Bolt cover M5 03 052 00

56 Moving assembly 03 019 00

57 Fixing circle 03 018 00

58 Set assembly 03 017 00

59 Iris door’s cuff 03 027 00

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Figure 6.2 Parts location diagram, base assembly (sheet 1-2)

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Figure 6.2 Parts location diagram, base assembly (sheet 2-2)

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Table 6.2 Base assembly replacement parts list

ITEM No. DESCRIPTION PART NUMBER

1 Handle P04 001 00

2 Cross groove head bolt M5×16 04 002 00

3 Spring washer 5 See No. of standard Parts

4 Flat washer 5 See No. of standard Parts

5 Inner hexagon column bolt M6×30 See No. of standard Parts

6 Spring washer 6 See No. of standard Parts

7 Flat washer See No. of standard Parts

8 Catheter P04 002 00

9 Water reservoir P04 003 00

10 Upper shell A P04 004 00

11 Bottom shell P04 005 00

12 Air-oxygen seperation controlling device P04 006 00

13 Air filter P04 007 00

14 Spring washer 4 See No. of standard Parts

15 Flat washer 4 See No. of standard Parts

16 Cross groove head bolt M4×20 See No. of standard Parts

17 Cover for box P04 008 00

18 Flat washer 3 See No. of standard Parts

19 Spring washer 3 See No. of standard Parts

20 Cross groove oval head bolt M3×10 See No. of standard Parts

21 Protection mantle 02 065 00

22 Checking board 02 067 00

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Table 6.2 Base assembly replacement parts list (Continue)

ITEM No. DESCRIPTION PART NUMBER

23 Cover for Protection mantle 02 066 00

24 Raster plate 02 024 00

25 Notch clamp bolt M3×5 See No. of standard Parts

26 Cross groove head bolt ST2.9×9.5 See No. of standard Parts

27 Heat insulation cover P04 009 00

28 Gasket P04 010 00

29 Cap cover P04 011 00

30 Left shaft P04 012 00

31 Cross groove head bolt M5×12 See No. of standard Parts

32 Seal gasket for cap cover P04 012 00

33 Right tilt machanism P04 014 00

34 Cross groove countersunk head bolt M5×8 See No. of standard Parts

35 Cross groove head bolt M4×10 See No. of standard Parts

36 Cross groove head bolt M4×16 See No. of standard Parts

37 Impeller groupware 02 010 01

38 Cross groove countersunk head bolt M4×12 See No. of standard Parts

39 Connecting cable for sensor P04 015 00

40 Cross groove oval head bolt M3×16 See No. of standard Parts

41 Hex nut M3 See No. of standard Parts

42 Motor 90YY2 02 023 00

43 Fixed circle for motor P04 016 00

44 Cross groove head bolt M4×12 See No. of standard Parts

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Table 6.2 Base assembly replacement parts list (Continue)

ITEM No. DESCRIPTION PART NUMBER

45 Cross groove counterhead head bolt M4×12 See No. of standard Parts

46 Heater group P04 017 00

47 Pad P04 018 00

48 Heat insulation board P04 019 00

49 Heat dissipation slice P04 020 00

50 Cover P04 021 00

51 Cover board P04 022 00

52 M3 extension bolt P04 039 00

53 Non-shedding bolt P04 023 00

54 O type seal circleφ3.75×1.8 See No. of standard Parts

55 Evaporation generator P04 040 00

56 Leaft shaft groupware P04 025 00

57 Right shaft groupware P04 026 00

58 Cross groove head bolt M5×8 See No. of standard Parts

59 Left tilt machanism P04 029 00

60 Handwheel P04 030 00

61 Gland cover P04 031 00

62 Drawers group P04 032 00

63 Charles clip CC-3 P04 033 00

64 Start-up CBB61-500V-0.27uF±5% 02 022 00

65 Fixing pin for capacitor 02 061 00

66 Adjustable Wiring fixed seat AP-0810 02 047 00

67 Label for high-temp warning P04 041 00

68 Baffle P04 034 00

69 Hex nut M4 See No. of standard Parts

70 Paper washerφ3 See No. of standard Parts

71 Cross groove head bolt ST2.9×6.5 See No. of standard Parts

72 Cross groove oval head bolt M4×12 See No. of standard Parts

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Table 6.2 Base assembly replacement parts list (Continue)

ITEM No. DESCRIPTION PART NUMBER

73 Cross groove head bolt M4×30 See No. of standard Parts

74 Motor absorbing pad P04 042 00

75 Seal washer for motor P04 043 00

76 Upper shell B P04 044 00

77 Handle P04 045 00

78 Seal for shell P04 046 00

79 Charles clip UC-3 P04 033 00

80 Two-Segment Adjustable Wiring stator TS-0607 P04 047 00

81 Air flow temp. sensor P04 048 00

Figure 6.3 Parts Location Diagram, IV Pole Assembly

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Table 6.3 I.V. Pole assembly replacement parts list

ITEM No. DESCRIPTION PART NUMBER

See No. of standard Parts

1 Flat washer 8

See No. of standard Parts

2 Spring washer 8

See No. of standard Parts

3 Inner hexagon colume bolt M8×40

P05 005 00
4 Monitoring support

P05 007 00
5 Support for I.V.Pole

P05 009 00
6 Screwy knot

P05 008 01
7 I.V.Pole

P04 027 01
8 Clip hoop

Y02 001 00
9 Knob

P05 010 00
10 Axis post

P05 006 00
11 Fixing seat

See No. of standard Parts

12 Flat washer 6

See No. of standard Parts

13 Spring washer 6

See No. of standard Parts

14 Cross groove head bolt M6×16

See No. of standard Parts

15 Inner hexagon colume bolt M8×35

P05 002 00
16 Monitor shelf

05 007 00
17 Tray

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重量限度：
4Kg

警 告

重量限度：
Kg

Figure 6.4 Parts location diagram, lift stand

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Table 6.4 Lift stand replacement parts list

ITEM No. DESCRIPTION PART NUMBER

1 Big drawer P01 001 00

2 Outer serrate clamp washer 6 See No. of standard Parts

3 Inner hexagon bolt M6×25 See No. of standard Parts

4 Cross groove head bolt M5×12 See No. of standard Parts

5 Spring washer 5 See No. of standard Parts

6 Flat washer 5 See No. of standard Parts

7 Outer serrate clamp washer 5 See No. of standard Parts

8 Inner hexagon bolt M5×30 See No. of standard Parts

9 Connection board P01 002 00

10 Protectin mantle goupware P01 003 00

11 Small drawer P01 004 00

12 Winding frame P01 005 00

13 Cross groove head bolt M4×10 See No. of standard Parts

14 Spring washer 4 See No. of standard Parts

15 Flat washer 4 See No. of standard Parts

16 Outer serrate clamp washer 4 See No. of standard Parts

17 Protective bottom shell P01 006 00

18 Lift support P01 007 00

19 Spring washer 12 See No. of standard Parts

20 Flat washer 12 See No. of standard Parts

21 Flat Axletree wheel P01 008 00

22 Spring washer 6 See No. of standard Parts

23 Flat washer See No. of standard Parts

24 Switch rack groupware P01 009 00

25 Hex bolt M8×25 See No. of standard Parts

26 Spring washer 8 See No. of standard Parts

27 Stand P01 010 00

28 Power cable for the controller P01 011 00

29 Flat Axletree wheel with brakes P01 012 00

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YP-2000 Controller

Figure 6.5 Parts location diagram1, controller assembly

Table 6.5 Controller Assembly Replacement Parts List 1

ITEM No. DESCRIPTION PART NUMBER

1 Middle frame groupware P02 001 00

2 Groupware for indicating frame P02 026 00

3 Electric nameplate P02 027 00

4 Cross groove countersunk head bolt M3×8 See No. of standard Parts

5 Sensor box 02 060 02

6 RS232 label P02 028 00

7 Earthed label 02 017 00

8 Skin sensor 1or 2 P02 025 00

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Figure 6.5 Parts location diagram 2, controller assembly

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Table 6.5 Controller assembly replacement parts list 2

ITEM No. DESCRIPTION PART NUMBER

1 Shell P02 001 00

2 Cross groove countersunk head bolt M3×8 See No. of standard Parts

3 Groupware for power socket P02 002 00

4 Earthed label 02 017 00

5 Wiring terminal OT1.5 P 02 026 00

6 Flat washer 3 See No. of standard Parts

7 Spring washer 3 See No. of standard Parts

8 Cross groove head bolt M3×6 See No. of standard Parts

9 Wiring terminal PC2L250 Y02 011 00

10 Hex nut M3 See No. of standard Parts

11 Label for switch P02 029 00

12 Cross groove head bolt M3×5 See No. of standard Parts

13 Paper washer 3 See No. of standard Parts

14 DC power board P02 027 00

15 Hexgan isolated column HTP-330 P02 028 00

16 Cross groove countersunk head bolt M3×6 See No. of standard Parts

17 Hexgan isolated column HTS-306 P02 010 00

18 Power board P02 003 00

19 Groupware for power switch P02 005 00

20 Axial-flow fan groupware P02 006 00

21 Cross groove countersunk head bolt M3×16 See No. of standard Parts

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Figure 6.5 Parts location diagram 3, controller assembly

Table 6.5 Controller Assembly Replacement Parts List 3

ITEM No. DESCRIPTION PART NUMBER

1 Groupware for front panel P02 009 00

2 LCD protectibve board P02 008 00

3 Main board P02 011 00

4 Front panel P02 007 00

5 Cross groove countersunk head bolt M3×8 See No. of standard Parts

6 Hexagon Isolated Roller HTP-315 See No. of standard Parts

7 Paper Washer 3 See No. of standard Parts

8 Hex bolt M3 See No. of standard Parts

9 Spring washer 3 See No. of standard Parts

10 Flat washer 3 See No. of standard Parts

11 LCD indication board P02 012 00

12 Cross groove countersunk head bolt M3×10 See No. of standard Parts

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18

Figure 6.5 Parts location diagram 4, controller assembly

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Table 6.5 Controller assembly replacement parts list 4

ITEM No. DESCRIPTION PART NUMBER

1 Bottom shell for sensor P02 015 01

2 Top shell for sensor P02 016 01

3 P02 030 00
Socket for skin sensor 2
4 P02 032 00
Label for sensor box
5 02 093 00
Screw stopper
See No. of standard
6
Cross groove countersunk head bolt M3×8 Parts

7 02 088 00
Sensor cover board
See No. of standard
8
Cross groove head bolt M3×18 Parts

9 P02 033 00
Label for skin temperature
10 P02 034 00
Socket for skin sensor 1
11 P02 035 00
Position limit switch
12 P02 019 00
Groupware for prepositive board of sensor
13 P02 030 00
LED reflector shell
14 P02 020 00
Groupware for sensor board
15 P02 021 00
Wire clip 6P- 4
16 P02 022 00
Wiring for sensor
17 P02 036 00
Socket for baby scale
18 02 060 01
Sensor module
19 02 030 00
AC power cord

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Table 6.6 No. Of Standard Parts

ITEM No. DESCRIPTION PART NUMBER

1 Cross groove oval head bolt M3×12 BZ 105

2 Cross groove oval head bolt M3×16 BZ 116

3 Cross groove oval head bolt M5×16 BZ 117

4 Cross groove countersunk head bolt M3×10 BZ 019

5 Cross groove head bolt ST2.9×13 BZ 029

6 Cross groove head bolt ST2.9×9.5 BZ 031

7 Cross groove head bolt M5×16 BZ 118

8 Cross groove head bolt M4×20 BZ 119

9 Cross groove head bolt M3×12 BZ 004

10 Notch clamp bolt M3×5 BZ 032

11 Cross groove head bolt ST2.9×6.5 BZ 028

12 Cross groove head bolt M5×12 BZ 012

13 Cross groove head bolt M5×8 BZ 120

14 Cross groove head bolt M4×10 BZ 008

15 Cross groove head bolt M4×16 BZ 010

16 Cross groove countersunk head bolt M4×12 BZ 023

17 Cross groove countersunk head bolt M4×12 BZ 009

18 Cross groove countersunk head bolt M3×20 BZ 121

19 Cross groove countersunk head bolt M3×12 BZ 020

20 Cross groove countersunk head bolt M5×10 BZ 122

21 Inner hexagon column head bolt M8×40 BZ 111

22 Cross groove countersunk head bolt M5×16 BZ 123

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Table 6.7 No. Of Standard Parts (Continue)

ITEM No. DESCRIPTION PART NUMBER

23 Cross groove countersunk head bolt M6×10 BZ 124

24 Inner hexagon column head bolt M8×35 BZ 125

25 Inner hexagon bolt M6×25 BZ 126

26 Cross groove head bolt M5×12 BZ 012

27 Inner hexagon bolt M6×30 BZ 127

28 Cross groove head bolt M4×10 BZ 008

29 Cross groove countersunk head bolt M3×10 BZ 019

30 Cross groove head bolt M3×6 BZ 001

31 Cross groove countersunk head bolt M3×5 BZ 016

32 Cross groove countersunk head bolt M3×6 BZ 017

33 Cross groove countersunk head bolt M3×16 BZ 021

34 Cross groove head bolt M3×8 BZ 002

35 Cross groove countersunk head bolt M3×8 BZ 018

36 Cross groove head bolt M3×18 BZ 097

37 Flat Washer 3 BZ 036

38 spring Washer 3 BZ 043

39 Flat Washer 4 BZ 037

40 Spring Washer 4 BZ 044

41 Flat Washer 5 BZ 038

42 Spring Washer 5 BZ 045

43 Flat Washer 6 BZ 039

44 Spring Washer 6 BZ 046

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Table 6.7 No. Of Standard Parts (Continue)

ITEM No. DESCRIPTION PART NUMBER

45 Flat Washer 12 BZ 042

46 Spring Washer 12 BZ 049

47 Flat Washer 8 BZ 040

48 spring Washer 8 BZ 047

49 Inner hexagon bolt M6×30 BZ 113

50 Hex nut M3 BZ 053

51 Hex nut M4 BZ 054

52 O type seal circleφ12×1.9 BZ 108

53 O type seal circleφ9×1.8 BZ 109

54 O type seal circleφ3.75×1.8 BZ 110

55 Outer serrate clamp washer 4 BZ 88

56 Outer serrate clamp washer 5 BZ 051

57 Outer serrate clamp washer 6 BZ 052

58 Hex bolt M8×25 BZ 112

59 Hex Nut M3 BZ 053

60 Wring slice 3 BZ 076

61 Paper washer 3 BZ 050

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SECTION 7 DIAGRAMS

7.1 GENERAL
The section provides schematic and wiring diagrams for Infant Incubator and circuit
diagrams, connection diagram for temperature controller boards.

S：Power switch for controller G：Internal battery GP17R8H Ni-MH8.4V/170mAh

X1：Powr input socket for controller F：DC12V axial-flow fan
X2,X4：Wiring terminal OT1.5-4 T：Transformer R20
A1：Power board A2: Main board A3: DC power board

WIRING DIAGRAM OF TEMPERATURE CONTROLLER

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XZ3 S1
X1 XZ8-1 XZ9
F2 F1
XZ6 1 3 XZ7
2 1 2 4
3 XZ4 XZ5

XZ1
XZ2
2 2

XZ1
XZ4
XZ5
XZ2

F3
XZ8-1 XZ8-2 XZ10
1 T

2
XZ9 XZ11

D1
D2
XZ33

XZ33 XZ14 XZ20

XZ12 XZ22
1 2 1 2
XZ29

XZ16
XZ17
XZ13 XZ19 XZ23
3 3 3 3
XZ17 XZ23
XZ12 1 4 XZ18
XZ13 XZ19
XZ16
XZ15 XZ14 XZ20 XZ18 XZ21
2 1 2 1
XZ15 4 1 XZ21 XZ22
SB1 SB2 SB3 SB4
1 1 1 1

XZ24 XZ25
X3 XZ28 XZ29 X2 XZ32
XZ31
XZ30
1(L)

2(N)

1(L)

2(N)
3

XZ26 XZ27 XZ24 XZ25

XZ26 XZ27

L G N

SB1～SB4：Switch for lift stand S1：Power switch T：Transformer

F3：800mAL/250V type T fuse M：Lift motor F1、F2：6AL/250V type T fuse

N：power supplying plug of temperature controller

X1：Input socket for power supply（Powerfilter FN 9222-10-06）

WIRING DIAGRAM OF LIFT STAND

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O2 SERVO

P1,P2：φ6.3retagular plug M：Motor for controller J5：Plug YT-005-4( To Motor)

J2：Plug MC420 J3：Plug HB-6 J6：Plug YT-005-2( To Steamer)
J4：Plug HB-2 Capacitance：0.27μ/400V J7：Plug YT-005-3( To O2 Servo )
J8：Plug YT-005-5(To Air Flow Temp. Sensor)

WIRING DIAGRAM OF INCUBATOR

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1、Oxygen sensor 2、Wiring for sensor

Note: Oxygen sensor 1 is installed by the user.

WIRING DIAGRAM OF INTERAL SENSOR

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DC POWER BOARD ASSEMBLY DIAGRAM 1

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DC POWER BOARD ASSEMBLY DIAGRAM 2

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DC POWER BOARD PARTS LIST

No. SYMBOL NAME AND SPECIFICATION QUANTITY

1 C1～C5、C12 Capacitor 0805-0.1uF±20% 6

2 C6～C8 Capacitor CD11-25V-470uF±20% 3

3 C9～C11 Capacitor CD11-16V-2200uF±20% 3

4 B1、B2 Rectification bridge GBU10005 2

5 U1、U2 Integrated circuit MC7805CT 3

6 U3 Integrated circuit MC7812CT 1

7 U1～U3 Radiator GHSI-45 3

8 F1、F2、F3 Seat for fuse 520101 3

9 F1 Fuse T-1AL/250V-C 1

10 F2 Fuse T-500mAL/250V-C 1

11 F3 Fuse T-160mAL/250V-C 1

12 T1 Transformer R20 1

13 J1 Socket XY4-6S 1

14 J2、J4 Socket XY4-3S 1

15 J3 Socket XY4-4S 1

16 Cross groove head bolt M3X8 1

17 Flat washer 3 2

18 Spring washer 3 1

19 Hex nut M3 1

20 Wiring terminal PC2L250 1

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 U1
Va MC7805CT VLCD+
1 3
Vin +5V
C1 C6 C9 C3
104 470uF 2200uF 104

GND
2
U2
B1 Va MC7805CT VCC J1
F1 T800mA
3 1 1 3 1
AC + Vin +5V +12
2
C2 C7 C10 C4 VCC
3
VLCD+

ELEMENTS DIAGRAM
4 2 104 470uF 2200uF 104 4
GND

AC -
5
GBU10005 6
J2 J4 J3
2

F3 T160mA

7-8
1 1 TRANSFORMER 4 6PIN
2 2 3
3 3 PRI. SEC. 2 U3
1 MC7812CT
3PIN 3PIN B2 +12
F2 T400mA
TRANS-IN 4PIN 3 1 1 3
AC + IN OUT
TRANS-OUT
GND

C12 C8 C11 C5
4 2 104 470uF 2200uF 104
AC -
2

GBU10005
SERVICE MANUAL FOR YP-2000 INCUBATOR

FOR DC POWER BOARD

EDITION/REVISION A/0

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POWER BOARD ASSEMBLY DIAGRAM 2

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POWER BOARD ASSEMBLY DIAGRAM 2

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POWER BOARD PARTS LIST

No. SYMBOL NAME AND SPECIFICATION QUANTITY

R1～R3、R6、R7、R9、R20、R21，
1 Resistor 0805-1KΩ±5% 9
R26
2 R4 Resistor 0805-1KΩ±1% 1

3 R5、R35～R38 Resistor 0805-2KΩ±5% 5

R8、R11～R13、R18、R22～R25、R26、
4 Resistor 0805-10KΩ±5% 11
R34
5 R28 Resistor RJ-0.25-10KΩ±5‰ 1

6 R14 Resistor 0805-9.1KΩ±1% 1

7 R15 Resistor 0805-100KΩ±5% 1

8 R16 Resistor 0805-33KΩ±1% 1

9 R17 Resistor 0805-18KΩ±1% 1

10 R19 Resistor 0805-100Ω±5% 1

11 R29～R33 Resistor 0805-200Ω±5% 5

12 R39 Resistor 0805-510Ω±5% 1

13 R40 Resistor RJ-0.25-30KΩ±5‰ 1

14 VR1 Potentiometer 3296-100Ω 1

15 C19、C20 Capacitor 0805-2200pF±20% 2

16 C32 Capacitor 0805-0.01uF±20% 1

17 C4、C14、C15、C18、C24、C25 Capacitor 0805-0.1uF±20% 6

18 C9、C10 Capacitor CD11-25V-470uF±20% 2

19 C26、C27 Capacitor 2220E-4.7uF±20% 2

20 C28～C31 Capacitor 1206E-1uF±20% 4

21 C21、C22 Capacitor 1210-10uF±20% 2

22 C23 Capacitor 1210E-16V-10uF±20% 1

23 D5、D6 Diode 1N4002 2

24 D1～D4、D7～D9 Diode 1N4148 7

25 D10 Diode 1N5339B 1

26 D11 Diode HZ11B1 1

27 Q1～Q5、Q9～Q12 Triode S8050 9

7-11
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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

POWER BOARD PARTS LIST (Continue)

No. SYMBOL NAME AND SPECIFICATION QUANTITY

28 Q6 Triode S8550 1

29 Q7 Triode 2SD667 1

30 U2 Integrated circuit MC7805CT 1

31 U3、U9 Integrated circuit LM358P 2

32 U13 Integrated circuit TLP521-2 1

33 U5 Integrated circuit SN74AHCT00D 1

34 U10、U11 Integrated circuit TLP521-1 2

35 U8 Integrated circuit 4N35 1

36 U12 Integrated circuit MAX232CSE 1

37 U14 Integrated circuit MAX489CSD 1

38 J1 Socket ME040-50803 1

39 J2 Socket XY2.5-3S 1

40 J3 Socket XY4-3S 1

41 J4 Socket XY2.5-2S 1

42 J5 Socket XY4-2S 1

43 J6 Socket XY2.5-4S 1

44 J7 Socket ME040-50802 1

45 J8 Socket XY4-6S 1

46 J9 Socket ME040-50806 1

47 J10 Buzzer EFM230 1

48 J11 Socket DC-2-26S 1

49 J12 Socket ME040-35010 1

50 J13、J14 Socket DD09SZG 2

51 T1、T2 Inductor TVA1421-01 2

52 DC2 DC-DC H0505S-1W 1

53 K1 Solid relay JW1aFSN-DC12V 1

54 S1、S2 Solid relay CX240D5 2

55 U2 Radiator 718 1

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

56 F1、F2 Fuse T-3.15AL/250V-M 2

7-13
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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

C18
VCC
+12
104
U9A R20
3 C21 1K
1 R7 10uF
2 1k
R24 heater_state J8
LM358 10K 6PIN J11
AC POWER INPUT R22 Q10 WENB 1
AC-N 10k 8050 DC POWER INPUT RENB 2
F1
J1 C19 TOTXD2 3
3 TORXD2 4

1
2
3
4
5
6
F3A
2 AC-L 222 T1OUT 5
F2 J7 Q3 +12
1 R1IN 6
VCC
7
F3A R3 VLCD+
3PIN power switch ctr_relay 8
K1A 1K ctr_bell 9
J3 ctr_bat 10
1 8050 ctr_ssr 11
+12
2 D4 ctr_hum 12
3 ctr_o2 13
1N4148 JW1aFSN 14
3PIN D7 D3 15
Q1 motor_pulse 16
AC POWER OUTPUT 1N4148 water_state 17
1N4148 R1 ctr_ssr fan_state 18
1K heater_state 19
+12
S1 humheater_state 20
2 3 D1 8050 21
~ + 1N4148
T1 1 4 22
~ -
J9 23
INDUCTOR2 VCC
RP1A40D5 24
1
1-4加热器 Q2 25
2 +12 +5
K1B S2 26
3 R2
2-5加湿器 2 3 D2 ctr_hum
4 ~ + 1N4148 26PIN
JW1aFSN 1 4 1K U2
5 ~ -
3-6电机 T2 D5 MC7805CT +5
6
RP1A40D5 8050 1 3 J5
+12 Vin +5V

8
INDUCTOR2 2
1N4002 C9 C10 C4 VLCD+
CON6 VCC 1

GND
D8 U9B D6 470uF 470uF 104 D10 U5C
5 1N5339B SN74AHC00D VCC 2PIN
1N4148 R21 bat+
7
D9 6 1K 1N4002

2
LM358 C22 VCC R34
1N4148 R9 10uF 10K

10
J10 R23 10k R15
1K
6 R25 humheater_state R11
R29 100k
5 C20 10K 10K
4 200 Q4 Q11 Q9
3 222 8050 +12 R26 8050
2 R6 ctr_bell U8
+5 1K
1 1k ctr_o2 R5 1 6
anode base

2
R39 C23 2K 2 5 Q7
510 10uF cathode collector
6PIN/empty 8050 3 4 2SD667
n.c. emitter
3 1
Bell VR1 4N35 J12
J2 U3B 1
100
3 5 2
cool fan 2 7 U5B 3
VCC
1 VCC 6 4
VCC DC2 +5A 4 5
1 7 3PIN +12 LM358 6 fan_state 6
VIN Vout+ U3A
R14 R16 5 Water 7
C26 C27 9.1k 33K 3 8
4.7uF 2 5 4.7uF 1 SN74AHC00D 9
GND Vout-
+5A 2 10
H0505S-1W C24 VCC
U10 Q12 R4 R17 LM358 +12 ME040-35010
R35 TORXD2 8050 C29 C30 1k 18K
1uF U12 104 1uF C14 C15
2K R31 2 6 104 104 J4
VCC C28 VS+ VS- C31
200 2PIN
TLP521-1 1uF 1 4 1uF BATTERY
C1+ C2+
U11 +5A 3 5
R30 R27 C1- C2-
TOTXD2 11 14
10K T1IN T1OUT
10 7 +12

2
1
200 T2IN T2OUT
12 13
R1OUT R1IN
9 8 Q6
TLP521-1 R36 R2OUT R2IN J14 J13
2K MAX232 1 R1IN 1
U14 +5A C25 6 J6 bat_voltage 6
U13A 1 14 2 R18 battery switch bat+ T1OUT 2
R32 NC VCC R8
WENB 2 13 7 10k 8550 ctr_relay 7
RO NC
200 3 12 A 104 3 10K 3
/RE A R19 R40 VCC
4 11 B 8 8
DE B 30K
5 10 Z 4 100 4
TLP521/2 R37 DI Z D11 +12
6 9 Y 9 Q5 9
2K GND Y R12 HZ11B1
7 8 5 ctr_bat 8050 5
GND NC
10k
U13B MAX489CSD DB9 R13 C32 R28 DB9
RENB R33 10k 103 10K
200 RS232

TLP521/2 R38
2K
YP-2000 Power Board

ELEMENTS DIAGRAM FOR POWER BOARD

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

MAIN BOARD ASSEMBLY DIAGRAM 1

7-15
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SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

MAIN BOARD ASSEMBLY DIAGRAM 2

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

MAIN BOARD PARTS LIST

No. SYMBOL NAME AND SPECIFICATION QUANTITY

1 R6、R9～R13、R18～R20 Resistor 0805-10KΩ±5% 9

2 R1～R5、R7～R8 Resistor 0805-1KΩ±5% 7

3 R21 Resistor 0805-30KΩ±5% 1

4 R14 Resistor 0805-5.6KΩ±5% 1

5 R15、R16 Resistor 0805-180Ω±5% 2

6 R17 Potentiometer 3296-500Ω 1

C1～C6、C10、C12～C15、
7 Capacitor 0805-0.1uF±20% 22
C17～C27

8 C7、C8 Capacitor 0805-15PF±20% 2

9 C9 Capacitor 1210E-16V-10uF±20% 1

10 C11 Capacitor CD11-25V-10uF±20% 1

11 C16 Capacitor 0805-1500PF±20% 1

12 C28～C31 Capacitor 1206E-25V-1uF±20% 4

13 C34、C35 Capacitor 0805-22PF±20% 2

14 C32、C33、C39 Capacitor CD11-16V-470uF±20% 3

15 C36～C38 Capacitor 0805-0.01uF±20% 3

16 U18、U19 Integrated circuit SN74LVC1G3157DBVR 2

17 U12 Integrated circuit SN74AHCT00D 1

18 U4 Integrated circuit SN74AHCT04D 1

19 U20 Integrated circuit AT89C51ED2 1

20 U7 Integrated circuit DS1230Y-100 1

21 U17 Integrated circuit MAX232CSE 1

22 U3 Integrated circuit SN74AHCT273DW 1

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

23 U22 Integrated circuit TPS3824-50 1

MAIN BOARD PARTS LIST (Continue)

No. SYMBOL NAME AND SPECIFICATION QUANTITY

24 U10 Integrated circuit MC34063AP1 1

25 U23 Integrated circuit DS12C887 1

26 U13 Integrated circuit S1D13305F00A1 1

27 U14、U15 Integrated circuit CY62256LL-70SNC 1

28 U21 Integrated circuit SN74AHCT373DW 1

29 U8、U9、U11、U16 Integrated circuit SN74AHCT244DW 4

30 U5、U6 Integrated circuit SN74AHCT139A 2

31 U1、U2 Integrated circuit SN74AHCT32D 2

32 JZ1 Crystal oscillator CCS11.0592MHz 1

33 JZ2 Crystal oscillator CCS10.000MHz 1

Winding inductance 100uH

34 L1 1
(internal diameterφ12, outline diameterφ6)

35 H1 LED-φ5-G/Y 1

36 H2 LED-φ5-G 1

37 H3 LED-φ5-Y 1

38 H4、H5 LED-φ5-R 2

39 D1 Diode 1N5817 1

40 TDK1 Inverter CXA-L10A 1

41 J1 Socket DC-2-26S(WS) 1

42 J2 Socket XY4-2S 1

43 J3 Single row header DPCZ-60T 6

44 J4 Socket SM03-BHS-1-TB 1

7-18
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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

45 JP1 Socket 5597-12APB 1

7-19
I5
 7-17
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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

R4 H2
led_set
1K
LED
U4A H1
U3 led_batchg R2
D0 3 2 ctr_ssr 1 2 ctr_bell 1K
D1 Q1
D1 4 5 ctr_bat
D2 Q2 R3
D2 7 6 C2 led_batfull
D3 Q3
D3 8 9 ctr_hum SN74AHC04 +5 1K D7
D4 Q4 U4B LED2 D7
U1A U1C D4 13 12 ctr_o2 D6
D5 Q5 D6
CS1 1 CS3 9 D5 14 15 104 H4 D5
D6 Q6 R7 D5
3 CLK1 8 CLK2 D6 17 16 led_pwr 3 4 led_alm D4
D7 Q7 D4
/WR 2 /WR 10 D7 18 19 1K D3
D8 Q8 LED D3
D2
SN74AHCT32 SN74AHCT32 D2
C1 CLK1 11 C10 SN74AHC04 H5 D1
CLK R8 D1
/rst 1 led_pwr D0
+5 CLR +5 D0
U1B U1D 1K A8
LED A8
104 CS2 4 CS5 12 SN74AHC273DW 104 CS8
CS8
6 CLK3 11 CLK4 H3 /RD
R5 /RD
/WR 5 /WR 13 C18 led_37 /WR
/WR
VCC 1K
SN74AHCT32 SN74AHCT32 LED
VCC VCC
U8 104
C3 U2A U2B 1
OC GND
CS6 1 CS7 4 CLK2 11
+5 CLK
3 G1 6 G2
+5 +5
104 /RD 2 /RD 5 D0 2 19 led_batchg
1D 1Q
D1 3 18 led_batfull
SN74AHCT32 SN74AHCT32 2D 2Q
D2 4 17 led_set
3D 3Q
D3 5 16 led_37 J1
4D 4Q
C4 D4 6 15 VCC WENB 1
5D 5Q
D5 7 14 C20 RENB 2
+5 6D 6Q
D6 8 13 TOTXD2 3
7D 7Q C29 C30
104 C17 D7 9 12 TORXD2 4
8D 8Q 1uF U17 1uF
U5A U5B 104 T1OUT 5
VCC
A14 2 4 A12 14 12 CS1 SN74HCT574DW 2 6 R1IN 6
A Y0 A Y0 C28 VS+ VS- C31
A15 3 5 A13 13 11 CS2 U7 104 7
B Y1 B Y1 1uF 1uF
6 10 CS3 A0 10 11 D0 C19 1 4 8
Y2 Y2 A0 D0 C1+ C2+
1 7 15 9 CS4 A1 9 12 D1 3 5 ctr_bell 9
G Y3 G Y3 A1 D1 VCC C1- C2-
A2 8 13 D2 TXD1 11 14 T1OUT ctr_bat 10
A2 D2 T1IN T1OUT
SN74LS139A SN74LS139A A3 7 15 D3 U9 104 10 7 ctr_ssr 11
A3 D3 T2IN T2OUT
A4 6 16 D4 1 RXD1 12 13 R1IN ctr_hum 12
A4 D4 OC R1OUT R1IN
U6B A5 5 17 D5 CLK3 11 9 8 ctr_o2 13
A5 D5 CLK R2OUT R2IN
C5 A10 14 12 CS5 A6 4 18 D6 14
A Y0 A6 D6
A11 13 11 CS6 A7 3 19 D7 D0 2 19 MAX232 15
+5 B Y1 A7 D7 1D 1Q
10 CS7 A8 25 28 D1 3 18 motor_pulse 16
Y2 A8 VCC VCC 2D 2Q
104 15 9 CS8 A9 24 D2 4 17 water_state 17
G Y3 A9 3D 3Q
A10 21 D3 5 16 fan_state 18
A10 4D 4Q
SN74LS139A A11 23 D4 6 15 heater_state 19
A11 5D 5Q
A12 2 27 /WR D5 7 14 key_out1 humheater_state 20
A12 WE 6D 6Q
A13 26 22 /RD D6 8 13 key_out2 21
A13 OE 7D 7Q
U18 VCC U19 VCC A14 1 20 A15 D7 9 12 key_out3 +5 VCC 22
A14 CE 8D 8Q
TXD1 3 5 RXD1 3 5 C6 23
B1VCC B1VCC VCC
TXD2 1 RXD2 1 DS1230Y-100 SN74HCT574DW 24
B2 C22 RXD B2 C24 +5 C32 C33
TXD 4 4 25
A 104 S0 A 104 470uF 470uF +5
S0 6 2 6 2 C25 VCC 104 26
S GND S GND
U11A U11B
VCC 26PIN
SN74LVC1G3157 SN74LVC1G3157 1 G1 19
G R20 G
U21 104 D0 18 9 TOTXD2
Y1 10K Y1
D0 3 2 A0 D1 16 2 heater_state TXD2 11 7 RXD2
D0 Q0 Y2 A1 A1 Y2
D1 4 5 A1 D2 14 4 fan_state TORXD2 13 5 WENB
D1 Q1 Y3 A2 A2 Y3
C23 D2 7 6 A2 D3 12 6 power_state 15 3 RENB
D2 Q2 Y4 A3 A3 Y4
D3 8 9 A3 8 water_state 17
+5 D3 Q3 A4 R21 A4
D4 13 12 A4
D4 Q4 30K
U20 104 D5 14 15 A5 SN74LS244 SN74LS244
D5 Q5
D0 43 2 S0 D6 17 16 A6
R1 wdi +5 P0.0/AD0 P1.0 D6 Q6
D1 42 3 D7 18 19 A7 U16A
R9 P0.1/AD1 P1.1 D7 Q7
1K D2 41 4 1 G2
P0.2/AD2 P1.2 G
4

10K D3 40 5 1 D0 18
P0.3/AD3 P1.3 OE Y1
D4 39 6 ALE 11 D1 16 2 humheater_state
P0.4/AD4 P1.4 LE Y2 A1
2
GND RST
1 /rst D5 38
P0.5/AD5 P1.5
7 D2 14
Y3 A2
4
WDI

D6 37 8 SN74AHC373 D3 12 6 VCC
C21 P0.6/AD6 P1.6 Y4 A3
D7 36 9 wdi C26 VCC 8
104 5 rst P0.7/AD7 P1.7 A4
3 C27
VDD RST R13 R18 R19
RTC_INT 15 24 A8 SN74LS244 J3
R10 P3.3/INT1 P2.0/A8 VCC 10K 10K 10K key_out1 1
+5 U22 14 25 A9 U23 104 U16B
10K P3.2/INT0 P2.1/A9
TPS3824-50 26 A10 1 24 19 G2 104 key_out2 2
P2.2/A10 MOT VCC G
17 27 A11 23 D4 9 key_out3 3
P3.5/T1 P2.3/A11 SQW Y1
motor_pulse 16 28 A12 D5 7 11 key_in1 4
+5 P3.4/T0 P2.4/A12 Y2 A1
+5 29 A13 D0 4 D6 5 13 key_in2 5
P2.5/A13 AD0 Y3 A2
C34 35 30 A14 D1 5 D7 3 15 key_in3 6
EA/VP P2.6/A14 AD1 Y4 A3
22pF 31 A15 D2 6 19 RTC_INT 17
JZ1 P2.7/A15 AD2 IRQ A4
21 D3 7 18 /rst 6PIN
11.0592M20 XTAL1 AD3 RST
D4 8 17 /RD SN74LS244
XTAL2 AD4 DS
C35 D5 9
AD5 C36 C37 C38
22pF rst 10 11 RXD D6 10 15 /WR
RST P3.0/RXD AD6 R/W R12 103 103 103
13 TXD D7 11 14 ALE
P3.1/TXD AD7 AS 10K
/RD 19 33 ALE 12 13 CS4
P3.7/RD ALE/P GND CS
/WR 18 32
P3.6/WR PSEN
DS12C887
AT89C51ED2-P44 R11
10K VCC YP-930 MAINBOARD

+5

ELEMENTS DIAGRAM 1 FOR MAIN BOARD

7-18
I5
 U12A
/VCE 1 U12B
C9 3 4
R6 2 6 RAM3CS
+5 SN74AHCT00
10K 5 SN74AHCT00
10uF

10

9
VA15
C7 J4

/VWR
/VCE
/RES

VA0
VA1
VA2
VA3
VA4
VA5
VA6
VA7
SMO3-BHS-1-TB(JST)

/WR
/RD
U12C

1
2
15pF

54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
JZ2 SN74AHCT00
C15 C8 10MHZ U13
U14

SEL1
SEL2

RES
WR

NC
NC

VWR
VA0
VA1
VA2
VA3
VA4
VA5
VA6
VA7
XG

RD

VRD
VCE
+5
VA5 10
A0 D0
11 VD0

5
104 15pF 35 VA8 VA14 9 12 VD1

8
VA8 A1 D1
55
XD VA9
34 VA9 VA7 8
A2 D2
13 VD2
D7 CS8 56 33 VA10 VA13 7 15 VD3

13

12

OUT1

OUT2
OGND
D7 CS VA10 A3 D3
D6
D6 A8 57
A0 VA11
32 VA11 VA12 6
A4 D4
16 VD4
D5
D5 +5 58
VDD VA12
31 VA12 VA11 5
A5 D5
17 VD5 TDK1
D4 D0 59 30 VA13 VA10 4 18 VD6 CXA-L10A

GND
VCC
D4 D0 VA13 A6 D6 U12D
D3
D3 D1 60
D1 VA9 3
A7 D7
19 VD7
D2
D2
NC
29 VA1 25
A8 VCC
28
D1 D2 1 28 VA14 VA2 24 SN74AHCT00
D1 D2 VA14 A9
D0 D3 2 27 VA15 VA4 21 VCC

2
D0 D3 VA15 A10
A8
A8 D4 3
D4 VD0
26 VD0 VA3 23
A11
CS8
CS8 D5 4
D5 VD1
25 VD1 VA8 2
A12 WE
27 /VWR
/RD D6 5 24 VD2 VA0 26 22 C39

11
/RD D6 VD2 A13 OE

XECL
XSCL

YSCL
YDI S
/WR VA6 1 20 RAM2CS

XD3
XD2
XD1
XD0

VD7
VD6
VD5
VD4
VD3
/WR A14 CE

VSS

YD
WF
D7

LP
VCC HM62256 470uF
SED1335F
VCC

XD0 10
11
12
GND 13
14
15
DOFF 16
FLM 17
18
VD7 19
VD6 20
VD5 21
VD4 22
VD3 23
6
XD3 7
XD2 8
XD1 9

2
1
U15
GND
VA5 10
A0 D0
11 VD0
D7

CP

LP
+5 +5 VA14 9
A1 D1
12 VD1
VA7 8
A2 D2
13 VD2
VA13 7 15 VD3 J2

DOFF
A3 D3
GND

FLM
VA12
VCC
XD3
XD2
XD1
XD0
6 16 VD4 2PIN
A4 D4

CP
LP
+20V VA11 5
A5 D5
17 VD5
VCC VA10 4
A6 D6
18 VD6
VA9 3
A7 D7
19 VD7
VA1 25
A8 VCC
28
VCC
C12 C13 C14 VA2 24
12
11
10
9
8
7
6
5
4
3
2
1
104 104 104 A9
VA4 21
A10 GND
14
VA3 23
A11
JP1 VA8 2
A12 WE
27 /VWR
5597-12APB(MOLEX ) VA0 26
A13 OE
22 RAM3CS
L1 VA6 1
A14 CE
20
VCC
100uH HM62256
R15
180
R14
5.6k
U10
5 8 D1
CMPR DRVC
7 1
IPK SWC +20V
2 3
SWE CT 1N5817 C11
10uF
MC34063AP1(8)

C16 YP-2000 MAINBOARD-LCD CONTRLLER

R16
R17 180
500 152 3

ELEMENTS DIAGRAM 2 FOR MAIN BOARD

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SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SENSOR BOARD ASSEMBLY DIAGRAM 1

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SENSOR BOARD ASSEMBLY DIAGRAM 2

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SENSOR BOARD PARTS LIST

No. SYMBOL NAME AND SPECIFICATION QUANTITY

1 R1、R3、、R4、R6 Resistor 0805-1KΩ±1% 4

2 R5 Resistor 0805-1KΩ±5% 1

3 R12 Resistor 0805-9.1KΩ±1% 1

R2、R15~R17、R20、
4 Resistor 0805-10KΩ±5% 8
R21、R24、R25

5 R14 Resistor 0805-18KΩ±1% 1

6 R13 Resistor 0805-33kΩ±1% 1

7 R7 Resistor 0805-200Ω±5% 1

8 R27 Resistor 0805-100kΩ±1% 1

9 R18、R19、R22、R23 Resistor RJ-0.25-10KΩ±1% 4

10 R8~R11、R26 Resistor RJ-0.25-20KΩ±1% 5

11 R28~R31 Resistor RJ-0.25-13KΩ±5% 4

12 R32~R35 Resistor RJ-0.25-500KΩ±5% 4

13 VR1 Potentiometer 3296-100Ω 1

14 C16~C17 Capacitor 0805-10PF±20% 2

15 C1~C12、C40、C43 Capacitor 0805-0.01μF±20% 14

16 C18~C27、C32~C34、C44 Capacitor 0805-0.1μF±20% 14

17 C35 Capacitor 1206-1μF±20% 1

18 C28~C31 Capacitor 1206E-25V-1μF±20% 4

19 C13~C15、C36 Capacitor 1210E-16V-10μF±20% 4

20 C41、C42 Capacitor 0805-22PF±20% 2

21 C38 Capacitor CD11-16V-220μF±20% 1

22 C37、C39 Capacitor CD11-16V-470μF±20% 2

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

SENSOR BOARD PARTS LIST (Continue)

No. SYMBOL NAME AND SPECIFICATION QUANTITY

23 U10 Integrated circuit SN74AHCT74D 1

24 U11 Integrated circuit TLC277CD 1

25 U4 Integrated circuit TLV2548CDW 1

26 U5 Integrated circuit MSC1210Y5 1

27 U6 Integrated circuit MAX232CSE 1

28 U1 Integrated circuit LM358D 1

29 U8 Integrated circuit MC7805CT 1

30 U2、U3 Integrated circuit TPS3824-50 2

31 U7 Integrated circuit TLV2544CD 1

32 U9 Integrated circuit AT89C4051 1

33 RG1 Resistor group 10 KΩ 1

34 Q1 Triode S8050 1

35 JZ1、JZ2 Crystal oscillator CCS11.0592MHz 2

36 S1 Plucking switch A6S-410 1

37 J8 Socket ATY1.25-6S 1

38 J3 Socket ATY1.25-2S 1

39 J6 Socket XY2.5-4S 1

40 J4、J5、J7 Socket ATY1.25-4S 3

41 J2 Socket XY2.5-10S 1

42 JP1 Single row header DPCZ-60T 2

43 J1 Strip needle with round hole RCD-40P 10

44 Heat dissipation slice 718 1

45 H1 LED RL-803ARC30-0 1

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 SERVICE MANUAL FOR YP-2000 INCUBATOR EDITION/REVISION A/0

RG1
10K

6
5
4
3
2
1
VCC S1
C18 SW_HUM 5 4
SW_O2 6 3
VCC
SW_O2CTR 7 2
104 SW_WEIGHT 8 1
J1 VCC

ADC1CS
SCLK1
SDI1
SDO1
RXD2
TXD2

CSTAR1
2
10 A6S-4101 VCC
+12 R7
9 C13 LAMP_ALM
8 R27 3 1 J3 200
VCC 100k H1
7 VR1 SW_BOX 2
to sensor2 boar d 6 C1 10uF 1 LED
R1 100
5 103 ch_hum

64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
4 U1A 2PIN
1K
3 ch_isolated 3
2 smallfan 1 coolfan_st1 C16 Q1

P1.3/TxD1
P1.2/RxD1
P1.5/IN T3/MOSI
P1.4/IN T2/SS
P1.7/IN T5/SCLK
P1.6/IN T4/MISO

DGND
DVdd

P1.0/T2
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
P0.4/AD4
P0.5/AD5
P1.1/T2EX
1 ch_air VCC 2 R5 8050
R11
R8 1K
10PIN LM358 10pF JZ1 VCC
20K
R12 R13 U1B C17 11.0592MHz VCC
20K
C2 C4 9k 33K 5 1 48
XOUT EA R17
7 coolfan_st2 2 47 coolfan_st1
R2 XIN P0.6/AD6 10K
6 10pF RXD1 3 46 coolfan_st2 VCC J7
10K P3.0/RxD0 P0.7/AD7
103 103 TXD1 4 45 JP1 1
P3.1/TxD0 ALE VCC

PSEL
R6 R14 LM358 ADC1INT 5 44 PSEN 2 2
P3.2/INT0 PSEN/OSCCLK/MDOCLK
1k 18K 6 43 1 TXD1 3
P3.3/INT1/TONE/PWM P2.7/A15 VCC
J4 C19 7 42 RXD1 4
P3.4/T0 DVdd

4
4 R9 8 41 C23 2PIN
20K VCC P3.5/T1 DGND 104
3 9 40 4PIN
104 VCC P3.6/WR P2.6/A14
2 2 1 10 39
GND RST P3.7/RD P2.5/A13

WDI
1 VCC ch_skin1 C20 C22 11 U5 38 VCC
104 104 12 DVdd P2.4/A12
MSC1210 37 C24
C3 DGND P2.3/A11
4PIN 5 3 13 36
103 VDD RST RST P2.2/A10 C29 C30
14 35
DVdd P2.1/A09 1uF U6 1uF
VCC U2 R15 15 34 104
DVdd P2.0/A08
TPS3824-50 10K 16 33 2 6
NC NC C28 VS+ VS- C31

AI N6/EXTD
AI N7/EXTA
1uF 1 4 1uF

AI NCOM

REF OUT
C1+ C2+

REF IN +
REF IN -
3 5

AGND

AGND
C1- C2-

AVdd
AI N0
AI N1
AI N2
AI N3
AI N4
AI N5
VCC TXD1 11 14 R1IN
T1IN T1OUT

NC
10 7
T2IN T2OUT
J5 RXD1 12 13 T1OUT
R10 R1OUT R1IN
4 C21 9 8
20K R2OUT R2IN
3

ADC1CS

17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
VCC
2 MAX232
1 VCC ch_skin2 U4 104 C14 C5
SDO1 1 20 10uF 103
C8 SDO CS
4PIN SDI1 2 19 U8
103 SDI REFP
SCLK1 3 18 +12 MC7805T +5
SCLK REFM
ADC1INT 4 17 VCC 1 3
EOC/(INT) FS +5 Vin +5V
5 16
VCC VCC PWDN VCC R3 R4 C25 C36 C26 C37 C39
ch_air 6 15

GND
A0 GND 1K 1K 104 10uF 104 470uF 470uF
ch_skin1 7 14 CSTAR1
A1 CSTAR
ch_skin2 8 13 ADC_CHECK
A2 A7
bat_voltage 9 12 ch_O2_2 C35
C6 R32 C40 A3 A6 C10 R18 R19
ch_hum 10 11 ch_O2_1

2
103 500k 103 U11A A4 A5 103 10K 10K
J6
4 3 TLV2548 105 VCC
3 1 ch_O2_1 +5 J2
2 R28 13K 2 R1IN 1
1 VCC C38 R26 T1OUT 2
R29 13K 220uF 20K 3
TLC277 VCC
4PIN C12 4

1
2
3
4
5
6
+12
ch_airflow 5
J8 bat_voltage 6
R34 weight 103 relay_ctr 7
500k 8
C44 9

4
clear R21 10
VCC 10K
VCC
C7 R33 C43 104 C32 2 1 R20 10PIN
GND RST

WDI
103 500k 103 U11B
VCC 10K
5 C33 C34 VCC C27
7 ch_O2_2 U7 104 VCC 1045 3 R16
R30 13K 6 SDO2 1 16 ADC2CS
VDD RST VCC
SDO /CS 10K
SDI2 2 15 C9 VCC U3 104 104
R31 13K SCLK2 3
SDI REFP
14 C15 103 TPS3824-50 U9
TLC277 SCLK REFM
ADC2INT 4 13 10uF 1 20 U10A
EOC/(-INT) FS VCC RST VCC
5 12 C41 RXD2 2 19 4
VCC VCC /PWDN RXD P1.7 VCC PRE
ch_isolated 6
A0 GND
11 22pF TXD2 3
TXD P1.6
18 3
CLK Q
5 relay_ctr
R35 ch_airflow 7 10 CSTART2 JZ2 4 17 2 6
A1 /CSTAR 11.0592M XTAL2 P1.5 clear D Q
500k 8 9 5 16 CSTART2 1
R22 A2 A3 XTAL1 P1.4 CLR
C42 ADC2INT 6 15 ADC2CS
VCC /INT0 P1.3
C11 TLV2544 22pF 7 14 SDO2 SN74LS74A
R23 10K 8
/INT1 P1.2
13 SDI2 R24
T0 P1.1 VCC
10K 9 12 SCLK2
103 10
T1 P1.0
11 R25 10K
GND P3.7
10K
AT89C4051

ELEMENTS DIAGRAM FOR SENSOR BOARD

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THE PREPOSITIVE SENSOR BOARD ASSEMBLY DIAGRAM

THE PREPOSITIVE SENSOR BOARD PARTS LIST

No. SYMBOL NAME AND SPECIFICATION QUANTITY

1 J2、J3 Thermistor 14A3002-C3 2

2 J4 Humidity sensor HIH-4000-003 1

3 J5 Linearity Needle with round hole RCD-40P 10

J1 J4 J2 J3
2PIN 3PIN 2PIN 2PIN
smallfan
2

1
1

1
2
3

+12

VCC
sen_hum

sen_duli

sen_air
smallfan

+12 VCC
10
9
8
7
6
5
4
3
2
1

J5
10PIN

ELEMENTS DIAGRAM FOR THE PREPOSITIVE SENSOR BOARD

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SECTION 8
DATA PRINTING

8.1 INTRODUCTION

This section provides the operation instruction about the data storing printing system.

8.2 CONNECTION BETWEEN MICRO-PRINTER AND CONTROLLER

See figure 8.1, please connect the data cable for Micro-printer, transformer adapter, and

Micro-printer correctly, and then connect the data cable for Micro-printer and wiring diagram, at last,

connect the wiring diagram for Micro-printer and RS232 connector for controller. Connect the

transformer adapter of Micro-printer onto the proper socket.

MICRO-PRINTER

WIRING DIAGRAM FOR PRINTER

THE DATA CABLE FOR MICRO-PRINTER

TRANSFORMER ADAPTER

RS232 CONNECTOR

FIGURE 8.1 DIAGRAM OF CONNECTION BETWEEN MICRO-PRINTER AND CONTROLLER

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8.3 OPERATION OF DATA PRINTING SYSTEM

8.3.1 Entering into the program of data printing

Press the set key at least for 3s and turn on the power supply for controller, at this time, system will

enter into the code interface (see figure 8.2). Input the code 36663, and press the set key to enter into

the main interface for printing. Inputting method of figure: press the relevant figure key 1-4 beside the

indicated figure to input the relevant figure, if the relevant figure dose not appear on the current screen,

and you can press the upper and lower key to make the figure be appeared.

FIGURE 8.2 ENTERING INTO THE CODE INTERFACE

8.3.2 Instruction for operation interface

If the code is correct, the system will indicate the main interface for printing (see figure 8.3).

FIGURE 8.3 ENTERING INTO THE MAIN INTERFACE FOR PRINTING

NOTE: When entering into the main interface for printing, if not continues the next step, the
indication will come back to the first interface automatically.

1. Weight

Press this key to enter into the printing interface of weight data.
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2. Temp.

Press this key to enter into the printing interface of temperature (including : air temperature, skin

temperature, humidity, oxygen concentration and the relevant set value).

3. Exit

Press this key to exit the printing interface.

8.3.2.1 Printing operation for weight data

Press the weight key on the printing interface to enter into the printing interface for weight data (see

figure 8.4).

FIGURE 8.4 PRINTING INTERFACE FOR WEIGHT DATA

NOTE: When entering into the printing interface for weight data if not continue the next step, the

indication will come back to the last interface automatically.

1. 01 days

Press this key to choose the days for printing, not more than 49days.

2. Print

Press this key for printing.

3. Exit

Press this key to exit the printing interface for weight data, and return to the main interface for printing.

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8.3.2.2 Printing for temperature value

ON the main interface for printing, press the temperature key to enter into the temperature value
printing interface (see figure 8.5).

FIGURE 8.5 PRINTING INTERFACE FOR TEMPERATURE VALUE

NOTE: When entering into the printing interface for temperature value, if not continue the next
step, the indication will come back to the last interface automatically.

1. 01 hours

Press this key to choose the hours for printing, not more than 24hours.

2. Print

Press this key for printing.

3. Exit

Press this key to exit the printing interface for temperature value, and return to the main interface for

printing.

TABLE 8.1 THE RELEVANT INFORMATION TABLE DURING PRINTING

INFORMATION CAUSE

There is no power for printer.

Indicate “Printing Error”
Abnormal connection between the printer and the
controller.
Good connection between the printer and the controller,
Indicate “Data Transfer…” and the system is transmitting the relevant data to the
printer.

Indicate “Data Transfer Over” Data transmitting is over.

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