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Masina Anestezie - Service Manual

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0% found this document useful (1 vote)
282 views48 pages

Masina Anestezie - Service Manual

Uploaded by

Alia Popa
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 48

X5 PLUS

ANESTHESIA
MACHINE
SERVICE
MANUAL
Foreword

Welcome to the Servicer Manual for the ATESE X5 PLUS Anaesthesia Machine.

This manual is for engineers who have successfully completed a service training course for X
serial ventilators.

if you have not completed such a course, you are not authorized to undertake the maintenance,

repairs and tests described in this manual.

Personnel operating the ventilator must become thoroughly familiar with the instructions
contained in this manual prior to using the ventilator with patients.

The ATESE X5 PLUS Anaesthesia Machine. is intended for use by a qualified practitioner under
the direction of a qualified anaesthetist. When the ventilator is connected to a patient, it is
recommended that a licensed medical practitioner be in attendance at all times to react to an
alarm or other indication of a problem.

WARNING:

Incorrect use of the equipment described herein may result in injury to the patient. Read
this manual before operating the machine. You must be familiar with the machine and its
functions before using it on a patient.

To ensure correct functioning of the equipment it must be serviced at regular intervals. The X5
PLUS must be serviced or repaired only by qualified service personnel using genuine spare parts.
We will not otherwise assume responsibility for the materials used, the work performed or any
possible consequences of the same.

In communication with us, quote the model and serial number of the equipment, with the
approximate date of purchase. If the unit is being returned for repair, indicate the nature of the
fault or the work you require to be carried out.
1 Introduction ATESE X5 PLUS Ventilator

1.1 Notices

1.1.1 Product Improvement

We have a policy of continued product improvement and therefore reserve the right to make
changes which may affect the information contained in this manual, without giving prior
notice.

1.1.2 Responsibilities of the Manufacturer

The manufacturer accepts responsibility for the effects on safety, reliability and
performance of the equipment only if:

Assembly operations, extensions, adjustments, modifications and repairs are carried out by
persons with written authorisation from the manufacturer;

The equipment is used in accordance with the instructions for use;

The electrical installation complies with the "Regulations for the Electrical Equipment of
Buildings".

1.1.3 Disclaimer

Opening of the control unit by unauthorised personnel automatically voids all warranties and
specifications. The prevention of tampering is solely the user's responsibility; the manufacturer
assumes no liability for any malfunction or failure of the ventilator if the control unit is opened.

1.1.4 Copyright

All rights reserved. The information contained in this publication may not be used for any
purpose other than that for which it was originally supplied. This publication may not be
reproduced in part or in whole without the written consent of manufacturer.
1.2 Equipment Symbols

Alarm silence key Home screen key

Standby key Equipotential

alternating current Battery

type B Class I equipment Attention: Consult


(according to IEC 60601-1
accompanying
standard equipment
documents (this
category)
manual)

Data communication
Warning notices
connector

The connector for


calibrating machine
VGA connector
specified by the
manufacturer

Power off Power on

O2 sensor connector O2 supply connector

Driver gas connector for


Exhaust gas connector
bellows

manufacturer manufacture date


The following definition of the WEEE label applies to EU member states
only.

This symbol indicates that this product should not be treated as


household

waste. By ensuring that this product is disposed of correctly, you will help

prevent bringing potential negative consequences to the environment


and

human health. For more detailed information with regard to returning


and

recycling this product, please consult the distributor from whom you
purchased it.
2 Description of the ventilator

2.1 Overview
The X5 PLUS ventilator is an advanced, microprocessor-controlled,pneumatically driven ventilator
which has been designed specifically for the mechanical ventilation of adult,paediatric and
neonatal patients under general anaesthesia.

The X5 PLUS is designed for use with a circle-type absorber and bellows,also is ideally suited to
both low-flow and high-flow applications. The ventilator may also be used with either a Bain-type
coaxial circuit or a Jackson-Rees/Ayres T-piece type paediatric circuit with no modification being
necessary.

The ventilator sets the desired ventilatory parameters and generates alarm, warning and status
messages and also calculates and implements the functions necessary to drive the bellows
pneumatically.

There are variations based on the drive gas used (air or oxygen) and the drive gas connector
type(depending on the eventual country of use).

2.2 Key Features

FEATURE DESCRIPTION

Display 8.4 inch color LCD

Navigation Touchscreen and control knob for easy navigation

Ventilation VCV, PCV, PSV, SIMV-VC,SIMV-PC,PRVC,SIMV-PRVC

and Manual/spontneous breathing mode with


respiratory monitoring capability.

Intended use General purpose device for all patient groups,


from neonates to adults.The minimum setting
tidal volume down to 10 ml.

Ideal boby weight The ventilator can automatically set ventilation


parameters and alarms based on the IBW
calculated from the patient height input.

Electronic PEEP Positive End Expiratory Pressure (PEEP) is set and

controlled electronically.
Waveforms and Loops Selectable five waveforms and three loops
display,two waveforms and two loops can be
displayed at the same time.

Battery Back Up More than 3 hours continuous operating time


with large capacity Li-ion battery.

2.3 Front Panel

The Display of the front panel (described in section 2.3.1) provides waveforms, monitoring

data and menu tabs. The keys and control knob enable the user to enter the standby, silence
alarms, access normal screen quickly.

FIGURE 2-1 Front panel


1. Alarm lamp

 High level alarms: the lamp quickly flashes red.

 Medium level alarms: the lamp slowly flashes yellow.

 Low level alarms: the lamp turns yellow without flashing.

2. Alarm silcence key

 To set alarm silence state, push this key to enter 120 s alarm silenced status.

 This key also works as an alarm system reset, clearing the visual alarm indicators
whose generating causes have already ceased.

3. Graphical user interface

4. Home screen key

Push the key to close all menus displayed.

5. Standby key

Push the key to enter standby mode.

6. Battery LED

 Red:when the battery are being charged.

 Green:when the anesthesia ventilator is being battery powered.

 Off: when the battery is full.

7. AC power LED

 On: when the anesthesia ventilator is connected to the AC power source.

 Off: when the anesthesia ventilator is not connected to the AC power source.

8. Control knob

Push the control knob to select a menu option or confirm your setting. Turn the control

knob clockwise or counterclockwise to scroll through the menu options or change your

settings.
2.3.1 Display

FIGURE 2-2 and the descriptions that follow provide an overview of the Display.

FIGURE 2-2 Display

1. Ventilation mode prompt area

Displays the current ventilation mode.

2. Lung icon area

 The icon is displayed when machine control inspiration is performed currently in

VCV,PCV,PRVC,SIMV-VCV,SIMV-PCV or SIMV-PRVC mode.

 The icon is displayed when SIMV-VCV,SIMV-PCV or SIMV-PRVC mode is selected

and inspiration triggering is performed in trigger windows currently.


 The icon is displayed when spontaneous inspiration triggering is performed

currently in SIMV-VCV,SIMV-PCV,SIMV-PRVC or PSV mode.

3. Alarm state area

 The icon is displayed when more than one alarm have occurred.

 The highest priority alarm will be displayed in alarm message area.

 the icon and 120s countdown time is displayed when the alarm silence key is

pressed.

4. Patient information area

Displays the patient type and ideal body weight.

5. Power supply state icon area

Displays power source and battery icon.The AC icon is selected when the anesthesia
ventilator is powered by AC power source. The battery icon is selected when the

anesthesia machine is battery powered to indicate battery capacity.

6. Parameter monitoring area

Key patient parameters are displayed in this area.

7. Stopwatch area

8. System time area

Displays system time of the anesthesia ventilator.

9. Menu operation area

10. Parameter setting area

Used to set the parameters related to the selected mechanical ventilation mode. The

arrangement of the shortcut keys in this area varies depending on the selected
mechanical ventilation mode. For details, refer to 4 Operations and Ventilation Setup.
11. Graph monitoring area
Displays the waveforms or spirometry loops. Different types of waveforms are displayed
based on the actual screen layout settings.
2.4 Rear Panel

FIGURE 2-3 Rear panel

1. The battery cover

2. SpO2 sensor connector

3. O2 sensor connector

4. The flow sensor connections

5. The fan
6. Driving gas(oxygen or air) inlet

7. Bellows driving gas port

8. Exhaust gas port

9. Equipotential terminal

10. Power switch

11. The power switch protective cover

12. The power plug protective bracket

13. Mains power connector

14. VGA Interface

15. RS232 connector

16. Calibration port

Attention:

 To ensure proper ventilation of the device, do not block the fan cover.

 Improper connection of equipment or any power sources to the calibration port may
permanently damage the ventilator. Only a qualified technician should connect monitoring
equipment to this port.
2.5 Penumatic Connections

FIGURE 2-4 Penumatic circuit diagram

1. Filter 2. High pressure sensor

3. Regulator 4. Proporational valve

5. Safety valve 6. Flow sensor

7. Airway pressure sensor 8. Differential pressure sensor

9. PEEP valve 10. Expiratory valve


The ventilator is pneumatically powered by the driving gas through the inlet filter (1).A high
pressure sensor (2) monitors the driving gas pressure, giving an alarm if the pressure is below 2.8
bar.

Driving gas is let to the pressure regulator (3) reducing the pressure to 2.5 bar for the Inspiratory
flow control valve (4).

This valve is controlled by the ventilator electronics, selecting a correct inspiratory flow according
to the ventilator settings. A differential pressure transducer(8) connected to the pressure sample
ports P1 and P2 on the rear cover of ventilator and measures inspiratory flow and expiratory
flow by flow sensor(6) during ventilation.

A pressure transducer(7) connected to the pressure sample port P2 measures the airway
pressure .

During inspiration the Expiratory valve (10),and the PEEP valve (9) are closed, and the driving gas
is let to the bellows. The exhalation valve (10) is closed during inspiration, and open during
expiration when the bellows is in top and the pressure in the bellows is approx. 3 hPa higher than
pressure from the ventilator.Excess gases are evacuated through the AGSS connector.
2.6 Electrical Connections

FIGURE 2-5 Block schematics electronics

A0: Power supply A1: Comport board

A2: Power switch board A3: GUI board

A4: Analog driver board A5: BDU(Breath deliver unit) board

A6: Key board A7: Knob board

A8: HPM board A9: BAT_C board

Q0: Power supply filter Q1: Li-on battery

Q2: Switch Q3: Fan


Q4: PEEP valve Q5: Proportional valve

Q6: Oxygen sensor Q7: Speaker

Q8: Touch screen Q9: LCD

Q10: Equipotential terminal

2.6.1 Cables List

S/N Description From To

W1 CMP cable J21 in the BDU board J3 in the Comport board

W2 AC Input cable Power supply filter CN1 in the power supply

Protective ground on the Equipotential terminal


W3 Ground Wire
power supply filter

W4 Battery cable J1 in the BAT_C board J2 in the Power switch board

W5 Swith cable Switch(on/off) J4 in the Power switch board

W6 DC24V cable CN2 in the power supply J1 in the Power switch board

W7 DC and Signal cable J15 in the BDU board J3 in the Power switch board

W8 Fan cable fan J5 in the Power switch board

W9 BDU to GUI cable J17 in the BDU board J4 in the GUI board

W10 LCD cable LCD J12 in the GUI board

W11 Touch screen cable Touch screen J8 in the GUI board

W12 Speaker cable Speaker J1 in the GUI board

W13 Key cable Key board J2 in the GUI board

W14 Knob cable Knob board J3 in the GUI board

W15 HPM cable J1 in the HPM board J16 in the Analog driver
board

Proportional valve J21 in the Analog driver


W16 PSOL cable
board

PEEP valve J15 in the Analog driver


W17 PEEP Valve cable
board

Lemo connector J26 in the Analog driver


W18 Oxygen Sensor cable
board

J16 in the BDU board J20 in the Analog driver


W19 Analog Signal cable
board

J18 in the BDU board J14 in the Analog driver


W20 Analog Power cable
board

W21 RS232 cable J6 in the GUI board J5 in the Comport board

W22 VGA cable J7 in the GUI board J6 in the Comport board


2.7 Electronic Components

2.7.1 BDU(Breath Deliver Unit) Board

FIGURE 2-6 BDU Board

The BDU board , in conjunction with the analog driver board, provides microprocessor

control of all breath delivery functions for the Ventilator. It also communicates

with the GUI board for display and control information from the operator. All analog

signals to and from the sensors and actuators of the system are controlled by software

running in the BDU board.


2.7.1.1 Connectors

CONNECTOR CONNECTED TO FUNCTION/SIGNAL

J15 Power switch board Power supply and signal

J18 Analog driver board Power supply

J16 Analog driver board Control signal

J17 GUI board Power supply and


communication with GUI

J21 Comport board connect with test device

2.7.1.1 Test points

TEST POINT FUNCTION RANGE

TP11 +3.3V +3.3V ±0.15V

TP10 Referance +5.0V +5.0V ±0.05V

TP13 Referance +1.0V +1.0V ±0.05V

TP14 Analog voltage +7.5V +7.5V ±0.2V

TP12 Referance +3.0V +3.0V ±0.05V

TP8 Expiratory valve control signal 0~1.0V

TP1 High pressure sensor signal 0.3V@1atm,0.3~2.7V

TP3 Oxygen sensor signal 0.38~0.56V@1atm

TP19 Inspiratory valve control signal 0~1.0V

TP16 Airway pressure sensor signal 0.3~2.7V

TP21 Flow sensor signal 0.3~2.7V


2.7.2 Analog driver Board

The Analog driver board provides an interface between the ventilator’s microprocessor circuits
and its analog systems. These analog systems include valves and transducers.

FIGURE 2-7 Analog Driver Board


2.7.2.1 Connectors

CONNECTOR CONNECTED TO FUNCTION/SIGNAL

J20 BDU board Power supply and


communication with GUI

J14 BDU board Power supply

J15 PEEP valve Power supply

J16 HPM board Connect to HPM board

J26 Oxygen sensor connector Connect to oxgen sensor

J21 Proportional valve Connect to Proportional


valve

2.7.2.2 Test Points

TEST POINT FUNCTION RANGE

TP11 Oxygen sensor signal 0.38~0.56V@1atm

TP16 Inspiratory valve control signal 0~1.0V

TP13 Flow sensor signal 0.3~2.7V

TP17 Expiratory valve control signal 0~1.0V


2.7.3 Power Switch Board

FIGURE 2-8 Power Switch Board

Power switch board serves as the power management for the ventilator,provides power
conversion from power supply board and recharge management for the battery.

2.7.3.1 Connectors

CONNECTOR CONNECTED TO FUNCTION/SIGNAL

J3 BDU board Power supply and battery


signal

J1 BDU board Power supply

J2 Battery Connect to battery

J4 System switch Connect to system switch

J5 fan Connect to fan


2.7.3.2 Test Points

TEST POINT FUNCTION RANGE

TP1 Reference voltage +2.5V +2.5V±0.1V

TP2 Power +5.0V +5.0~+5.5V

TP3 Power +12.0V +12V±0.2V

TP5 Recharge status Fully:0V

Not fully:+5V±0.5V
2.7.4 GUI Board

GUI board provides microprocessor control and monitoring of the display and user interface
system. The GUI board includes these circuits, which perform the indicated functions:

 The CPU and control circuit includes a STM32F429 microprocessor, operating at 180 MHz,
along with supporting devices to perform ventilator control functions. In addition to
executing instructions, these functions include passing data back and forth between
memory and I/O devices; generating address signals used to access memory locations;
generating read/write, timing, and other control signals; and processing interrupts from the
various system devices.

 The real-time clock tracks the ventilator’s operational time and short-duration power losses
(up to 60 minutes). When the ventilator is operating, the real-time clock is powered by VCC.
When power is lost or removed, a built-in battery powers the clock.

 Three RS-232 C channels provide output for digital communications interface and external
communications for service mode. They are electrically isolated for safety.

 The VGA video control circuit, comprising a VGA LCD controller IC.

 Touchscreen control circuit for 4 wires resistive touchscreen panel.

 The LED PCB interface lets the microprocessor control the discrete LEDs on the key board.

 The sound generator interface produces the ventilator’s alarm sounds. Consisting of a
microcontroller and audio signal processing hardware, the interface produces standard
alarm sounds.

 The rotary encoder/decoder circuit determines the direction and amount of knob
movement.

 The keyboard interface reads the keyswitches and controls the lighting of the LEDs on the
keyboard.
FIGURE 2-9 GUI Board

2.7.4.1 Connectors

CONNECTOR CONNECTED TO FUNCTION/SIGNAL

J4 BDU board Power supply and


communication with BDU
board

J6 Comport board Connect to comport


board,communication
with PC

J2 Key board Connect to key board

J3 Knob board Connect to key board


J1 speaker Connect to speaker

J12 LCD Display Connect to LCD

J14 JTAG tool Connect to JTAG tool

J7 Comport board Connect to comport board

J8 Touch screen Connect to touch screen

2.7.4.2 Test Points

TEST POINT FUNCTION RANGE

TP1 Power +10.4V +10.4V±0.3V

TP2 Power -7.0V -7.0V±0.5V

TP3 Reference voltage +3.0V +3.0V±0.05V

TP4 Power +9.0V +9.0V±0.2V


3 Disassembling

WARNING:

Only personnel trained and authorized by Hventi shall be permitted to perform installation,
service or maintenance of this ventilator.

Before disassembling or assembling, make sure that:

 Gas supply is disconnected.

 Always switch the ventilator off and disconnect the ventilator from the mains power and as
well as remove the battery, before opening the cover.

 Never use any kind of lubrication on any part of the ventilator

Discard disposable, replaced and left-over parts in accordance with appropriate industrial and

environmental standards.

After performing Maintenance or Replacement of a component or module, perform the


necessary function checks, calibrations and Safety Tests to ensure the ventilator is performing
properly.
3.1 Removing The Battery

Figure 3-1 Removing The Battery,Step 1

1. Unscrew the two screws and remove the cover of battery box

2. Disconnect the battery connector,remove the battery


Figure 3-2 Removing The Battery,Step 2

3.2 Removing The Top Cover

Figure 3-3 Removing The Top Cover,Step 1


1. Remove screws from the rear cover and the top cover

2. Lift the ventilator and put it as shown

Figure 3-4 Removing The Top Cover,Step 2

3. Remove two screws on the botttom of cover


Figure 3-5 Removing The Top Cover,Step 3

4. Pull the top cover back and remove the top cover
Figure 3-6 Removing The Top Cover,Step 4
3.3 Removing The Power supply

Figure 3-7 Removing The Power Supply

 As shown,find the position and unsrew the two screws,then take the power supply away.

Figure 3-8 Power Supply Assembly


3.4 Removing The Power Switch Board

1. Remove the four screws from the body of ventilator

Figure 3-9 Removing The Power Switch Board

2. Disconnect the cables with power switch board,then remove the power switch board

Figure 3-10 Power Switch Board


3.5 Removing The BDU Board

1. Remove the four screws from the bottom of cover

Figure 3-11 Removing The BDU Board

2. Disconnect cables and pressure sample tube with BDU board

3. Remove BDU board


Figure 3-12 BDU Board

3.6 Removing The Front Panel


Figure 3-13 Removing The Front Panel,Step 1

1. Remove the two screws from the top of front panel

2. Lift the ventilator and place it as shown

Figure 3-14 Removing The Front Panel,Step 2

3. Unscrew the two screws from the bottom of front panel

4. Disconnect the cable with GUI board,then remove the front panel
Figure 3-15 Removing The Front Panel,Step 3

3.7 Removing LCD Module

Figure 3-16 Removing The LCD Module,Step 1


1. Remove the four screws from LCD frame

2. Disconnect the cables with GUI board,then take the LCD frame away

3. Remove the lcd module(LCD and touchscreen pasted together)

Figure 3-17 Removing The LCD Module,Step 2


3.8 Removing The Penumatic Module

Figure 3-18 Removing The Penumatic Module

 Unscrew the four screws from the rear cover,as shown

 Remove the penumatic module


Figure 3-19 Penumatic Module
3.9 Assembling The Penumatic Module

Figure 3-20 Assembling The Penumatic Module

1. Proporational valveFilter 2. Pressure regulator test port

3. Regulator 4. High pressure sensor

5. Safety valve 6. PEEP valver

7. Membrane holder 8. Expiratory membrane

9. Penumatic body 10. Drive gas outlet

11. AGSS connector 12. Filter

13. Drive gas inlet


4 Calibration

4.1 Introduction

This section provides detailed information required to properly test and calibrate the ATESE X5
PLUS anesthesia ventilator. Calibration consists of making mechanical and electrical
adjustments with

the proper test equipment. The instrument should be tested and calibrated after repairs have

been completed or at regular intervals as part of a periodic maintenance procedure.

NOTE: Both calibration and a functional test must be performed to verify complete and

proper operation.

Ensure that all testing materials, including drive gas, breathing circuits, tools and

documents are available and current, calibrated and in good working order prior to beginning.

4.2 Calibration Warnings, Precautions, and Notes

4.2.1 Warnings

WARNING: For continued protection against fire hazard, replace all fuses with the specified

type and rating.

WARNING: In order to prevent an electric shock, the ventilator (protection class I) may only

be connected to a correctly grounded mains connection (socket outlet with grounding

contact).

WARNING: Possible explosion hazard. Do not operate ventilator near flammable anesthetic

agents or other flammable substances. Do not use flammable anesthetic agents (i.e., ether or

cyclopropane.)

WARNING: The use of anti-static or electrically conductive respiration tubes, when utilizing

high frequency electric surgery equipment, may cause burns and is therefore not
recommended in any application of this machine.

WARNING: Possible electric shock hazard. The machine may only be disassembled by authorized

service personnel.

4.2.2 Cautions

CAUTION: Use cleaning agent sparingly. Excess fluid could enter the machine, causing

damage.

CAUTION: This machine must only be operated by trained, skilled medical staff.

4.2.3 Notes

NOTE: Only bacterial filters with a low flow resistance must be connected to the patient

module and/or the patient connection.

NOTE: Ensure that the gas supply of the ventilator always complies with the technical

specification.

NOTE: The APL Valve and PAW gauge marker are for reference only. Calibrated patient

airway pressure is available on the ventilator screen.

NOTE: If the machine should show faults during the initial calibration or testing, the

machine should not be operated until the fault has been repaired by a qualified service

technician.

NOTE: After servicing, functional, sensor and system tests must be carried out before

clinical use.
4.3 Overview Calibration

NOTE: Perform the corresponding calibration if any test item of the system test about

measurement accuracy is failed.

NOTE: Fluke VT Plus: The zero reading (offset) of the pressure measurements may drift

slightly with time and temperature. A zeroing function is provided for the user to zero the

offset drift. Typically, this is done when a non-zero reading occurs when there is zero applied

pressure. However, it is good practice to zero the respective signal before any measurement is

taken.

NOTE: You can select VT Plus to perform automatic calibration of valves or flow

sensors, or any other calibration devices that fulfills the accuracy requirements to perform

manual calibration.

The anesthesia ventilator provides the function of monitoring volume, pressure, FiO2 and etc.

When these measured values have great deviations, it is very likely that measurement offset

occurs to the relevant measurement parts. In this case, you need to perform calibration again.

After equipment service, such as replacing the analog driverl board, expiratory valve

Assembly,pressure regulator and proporational valve assembly, you need to calibrate the flow
sensors.

The following table lists the possible calibration items and calibration time.
SN Calibration item Functional description Calibration time

Calibrating the deviation 1.Flow waveforms deviates


from the baseline.
Flow sensor zero from zero point of flow
1
calibration sensor 2.Analog driver board is
replaced

Calibrating the deviation Pressure waveforms


deviates from the baseline.
pressure sensor zero from zero point of
2
calibration pressure sensor 2.Analog driver board is
replaced

Calibrating the accuracy of 1. The measured value of


the O2 sensor has a great
O2 sensor at 21% and
deviation. The deviation
100% O2
O2 cell calibration exceeds 3% both in Air and
3 pure O2.

2. The O2 sensor is replaced.

3. The analog driver board is


replaced.

Calibrating the oordinates Touched position has a great


of the touch controller. deviation from designed
Touchscreen position.
4
calibration
2.Touchscreen or GUI board
is replaced

Calibrate the inspiratory 1. The analog driver board is


flowrate of flow sensor
replaced.
and inspiratory valve of
the ventilator. 2. The inspiratory valve or
Inspiratory valve pressure regulator is
5
calibration replaced.

3. The deviation between


the measured value of the
ventilator flow sensor and
that of the flow easurement
device exceeds more than
15% of the reading or 1

L/min, whichever is greater.

Calibrate the expiratory 1. The analog driver board is


flowrate of flow sensor
replaced.

2. The deviation between


the measured value of the
Expiratory flow
6 ventilator flow sensor and
sensor calibration
that of the flow easurement
device exceeds more than
15% of the reading or 1

L/min, whichever is greater.

Calibrate the PEEP of 1. The analog driver board is


ventilator replaced.

2. The PEEP valve is


replaced.

3. The deviation between


Expiratory valve the measured value of the
7
calibration ventilator’s pressure sensor

and that of the standard


pressure gauge exceeds
more than 5% of the reading
or 2cmH2O, whichever is
greater.
ATESE SAĞLIK HİZMETLERİ LTD. ŞTİ.

ADRES: İvedik OSB Mahallesi

1435. Cadde No:37

Yenimahalle / ANKARA

TÜRKİYE

TEL: 0312 394 45 67 FAX: 0312 394 45 90

WEB: www.atese.com.tr E-mail: atese@atese.com.tr

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