Model HS-HSB200

HORIZONTAL CYLINDRICAL PRESSURE STEAM STERILIZER

Microcomputer control

USER’S MANUAL

Warning: please read the user’s manual carefully before using the machine.
1. Synopsis
HS-HSB series horizontal pressure steam sterilizer is the equipment that disinfects and sterilizes the
objects with saturated steam, its structure is horizontal and heating way is: electric heating and direct
steam heating. It is composed of sterilization room, jacket, shell, door, steam generator, pipe system,
control system, indicating system and power-supply system.

2．Application Scope
The product is applicable to disinfect and sterilize medical devices, dressings, glass wares and
hydroponics medium etc in the steam method.

3．Normal Working Condition

Normal working condition shall comply with the following conditions:
a) Environmental Temperature +5℃～+40℃;
b) Relative Humidity ≤80%RH
c) Atmospheric Pressure 70kPa～106 kPa;
d) Water Source Pressure 0.15MPa～0.25MPa;
e) Steam Source Pressure 0.22MPa～0.27MPa (when heating by connecting external steam source)
f) Working Power Supply see nameplate

4. Basic Parameters
Basic Parameters of Sterilizer (Table 1)
No. Name HS-HSB200
1 Capacity 200L (Φ515mm x 1000mm)
2 Max.work pressure 0.22MPa
Max.work
3 134℃
temperature
4 Heat evenness ≤1
5 Temp.range 105~134℃
6 Timer range 0min~99min
7 Dry time range 0min~99min
8 Power consumption 9KW
Auto water-in, cooling air release, sterilize timing, air release,
9 Characteristic
dry timing, alarm

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 Over pressure, over temperature protection device, auto
pressure release, lack water and overheat protection, over
10 Safety
current power cut off, the door be locked when the pressure
inner over 0.027MPa, with the function of interlock
11 Dimension 1400×750×1700mm
12 Trans Dimension 1560×910×1880mm
13 Weight Net: 350kg / Gross: 430Kg

5. Outline Structure and Composition

a) See Fig. 1 for outline structure of sterilizer

Fig. 1

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b) Outline Structure Parts Instruction:
See Fig. 2 for display screen indicating

Fig. 2
Nixie Tube
The upper end of the display panel is installing three nixie tubes to display data.
Display contents in correct order are: jacket temperature, sterilization room temperature and time.

Indicator Light
To be used for displaying the input and output and of working process. From left to right in correct
order are as below:
Door------Door indicator light; light on means the door has been closed.
Starting------Operation indicator light; light on means the operation stroke has been started, it is in
sterilization cycle.
Water Inlet------Water inlet indicator light; light on means it is inletting water inside evaporator.
Heating------Heating indicator light, light on means electric heating pipe is in the ohmic heating
state.
Sterilization------Sterilization indicator light, light on means sterilization cycle has been in the
sterilization state.
Slow Exhaust------Slow exhaust indicator light, light on means slow exhaust valve is opened to
exhaust steam, which is mainly used for drainage of sterilization room.
Fast Exhaust------Fast exhaust indicator light, light on means fast exhaust valve is opened to

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exhaust steam, which is mainly used for freezing air replacement and exhaust steam.
Drying-----Drying indicator light, light on means sterilization cycle has been in the sterilization
state.
Full Exhaust-----Full exhaust indicator light, light on means the sterilization room and evaporator
are in the exhausting steam in the fault state.
Water break------Water break indicator light, light on means evaporator is in low water level state.
Print------Print indicator light, light on means the printer is printing the sterilization record which
has been saved. The sterilization record contains sterilization parameter and time and date before the
sterilization is finished. During the period of indicator light on, press printer key again is in vain.

Instruction of other parts on operation panel:

Power switch
It is on the side lower part of sterilizer, which is used for the power supply junction or cut off for
equipment control system.
Breaker
It is on the side lower part of sterilizer, which is used for the power supply junction or cut off for the
electric heating tube inside the evaporator.
Micro Printer
It is on the side lower part of sterilizer, which is used for printing sterilization record that has been
saved.
Pressure Meter
It is on the side upper part of sterilizer,, displaying the pressure of sterilization room and jacket
(evaporator) pressure indication of sterilizer.

Operation keys, from left to right in correct order are:

Setting ------ Set sterilization parameters
It is used for setting sterilization temperature（115℃~134 ℃）, replacement time（0 minute~60
minutes ） , sterilization time （ 0 minute~99 minutes ） , drying time (0 minute~99 minutes) and
parameter inquiry during working process.
▲----- Increase key

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It is used to set the increase of sterilization parameter value.
▼------- Decrease key
It is used to set the decrease of sterilization parameter value.
Starting------Starting key
It is used to start the working stroke and set the color system time in control system.
Exhaust Steam------Exhaust steam key
It is a press-key used to reset the control system when it occurs abnormal situation during working
process. After the system is reset, the sterilization room will exhaust steam.
Print ------Print key
It is used to print the parameters of sterilization record process in working.

6. Instruction to Characteristics and Functions of Parts

(1) The sterilizer body is featured with air-tight double-layer structure, composed of sterilization
room and steam jacket. When the steam flows in and full of the jacket, the sterilization room
wall will be preheating. There is electromagnetic valve between sterilization room and jacket,
pressure steam enters sterilization room from jacket through main valve to moisten and heat
articles, so as to achieve the goal of disinfection and sterilization under the influence of moisture
and heating. Meanwhile, it can satisfy the requirements of preheating, drying and continuous
operation of the objects waiting to be sterilized.
(2) Cover enclosure outside of the jacket of the sterilization room and fill glass wool with well
insulating performance in it, it is favorable to save energy resource and prevent environmental
temperature rising too much.
(3) The open and close for the door of sterilization room adopts radiation bar rotary disk. It is
installed with secondary self lock and interlocking safety device, first pull the safety fixing hand
wheel when closing the door, displace at the angle of 45 degrees with the joint center of
radiation bar rotary disk; after the radiation bar is placed in complete meshing place, turn the
hand wheel again, the central rotary disk is placed in axial direction and self-locked by the
locating pin. When the pressure inside sterilization room is larger than 0.027MPa, the
interlocking device enters automatically to avoid being opened by mis-operation. When the
pressure inside sterilization room is less than 0.027MPa, the interlocking device quits, but the

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 rotary disk is still self-locked, hand wheel can be turned counterclockwise, the central rotary
disk can quit only in axial direction, the door seal fails gradually and the remaining steam is
released to null, that is, release pressure first, then open the door. Only after the hand wheel quit
to the outermost, can the safety fixing hand wheel be pulled, withdraw the radiation bar and
open the door.
(4) It sets program function in sterilizer, the air and condensed water in the sterilizer will be
discharged automatically during sterilization process so that the sterilization temperature in
sterilization room can approach balance.
(5) It is installed with steam pressure device to maintain stable pressure, its pressure is controlled
within the range of 0.05～0.22MPa and the relative temperature is 110～134℃. Select working
temperature pressure through temperature control knob on electric apparatus control box panel.
(6) It is installed with timer device, with the time set within the range of 0 ～ 60 minutes, select
working time through time control turn button on electric apparatus control box panel.
(7) It is installed with high water level device, after pressing starting button, the inlet indicator light
is on, the water supply will enter into water tank automatically, and it will heat up immediately
after reaching high water level, meanwhile the indicator light is off.
(8) It has automatic control functions:
 If the door of sterilization room is not closed tightly and it can not sterilize, prompting the door
indicator light is off, now we can conduct drying operation.
 If the door is opened by error in the starting process of sterilization room, the electromagnetic
valve which enters into sterilization room will be closed automatically, and the door will be
mechanical self-locked ≥0.027MPa.
 If starting without selecting to set sterilization time, the buzzer will be alarmed to prompt.
 It is installed with low water level protective device, when the water level is lower than the
requirement and lack of water in the entire process, it can cut off the heating power supply
automatically and meanwhile, water break indicator light is on, heating and sterilization
indicating is off and the buzzer is alarmed and the steam is exhausted automatically.
 It is installed with overload leakage protective device, when it occurs electrical leakage or
over-current, it can cut off the power supply automatically and the indicator light of electric
appliance control panel is off.

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 It is installed with temperature controlling failure protective device, the fine-open spring safety
valve is fixed on the top of sterilizer, which can open automatically and release over-pressure
steam, when the steam pressure in the jacket exceeds the maximum permissible range and will
close automatically when the steam pressure reduces to normal. It plays a very important role in
ensuring safe application; the operation pressure range of safety valve is 0.24 ～ 0.25MPa.See
Table 2.

Detailed List of Serial Number (Table 2)

Specification Specification &
S/n Name S/n Name
& Model Model
1 Manual Ball Valve DN25 4 Pressure Gauge 0-0.3MPa
2 Manual Ball Valve DN32
3 Check Valve DN32

(9) It is installed with manual emergency switch valve, when the equipment is switched off
suddenly and need to open the door to fetch the objects, it is allowed to open the manual ball
valve on the back of the equipment manually, releasing the pressure of sterilizer and open the
door to fetch objects after pressure gauge returns to zero.
(10) It is installed with manual maintenance switch valve, when the evaporator of the equipment
needs cleaning and draining, open the manual valve in the left bottom side of the equipment to
exhaust the waste water from pressure box.
(11) Installed with electromagnetic valve：
 The inlet valve; press start key, the program will be closed after it is inlet water to high water
level automatically.
 Drainage valve; electrify and press starting key, the programme will be opened automatically at
the temperature ≤108℃ when it is exhausting air, heating and sterilizing automatically, at the
temperature is ≥108℃, it will be closed automatically.
 Exhaust steam valve; electrify and press starting key, the programme will be closed after it
finishes, exhausting air and it inlets water to high water level. When sterilization is completed
and press emergency stop key, the programme exhausts steam and open automatically.
 Sterilization valve; electrify and press starting key, the program inlets steam automatically; when

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 water inlet reaches to the high water level, the door is closed tightly, vice versa, the door is
opened.

7. Installation and Commissioning

(1) Put shock pad under the two rotation legs, rotate the support leg after universal wheels leave the
ground, put shock pad under the oriented wheel.
(2) It shall leave some space all around when installing the sterilizer, convenient to operate and
maintain; outline dimension of maximum limit is 200×93×182cm,after the steam door is opened.
(3) Adjust the inner drum level of the equipment through regulating the height of rotating support
leg.
(4) Connect the pipeline of drainage, water inlet and water source to the related ones of the
equipment (see Fig. 3), and meanwhile configurate power source according to the requirements.

Fig.3

(5) After installing the equipment, inspect the equipment completely once again, after confirmation
without fault, it can start trial run. Refer to operation method, open the manual water inlet valve,
observe the state of water source pressure gauge and examine whether the pressure is in the
required pressure range. Switch on power supply and operate trial run referring to operation
method.
(6) It has been inspected by rising temperature before the products leave factory, but after it is
installed and ready, the user shall perform trail run according to user’ manual; if there is any
problem, please inquire the reasons and solve it, it can’t be put into operation until it runs
normally.

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8. Application Method
(1) Operation Method of the Door
Because the device is a pressure vessel, it is important to operate the door exactly, please read the
following items carefully before operating the door.
A. Close the door
Before closing the door, make sure there are no cracks, damage and dirt on the sealing material of the
door and make sure there is no damage and dirt on the contact face between the main body and the
sealing material of the door damage and dirt.
First turn the handle counterclockwise to limit position when closing the door, so as to make all the
radiation bars of the door in contraction position. Then get the door close to the main body, turn the
handle clockwise, at the beginning, turn a bit, after the door indicator light gives out signal, continue
to turn the handle for 1/4-1/2 cycle. Strictly prohibit rotating the door counterclockwise after the door
is closed.

B. Open the door

The door can be opened only when the inner drum pressure is equal to the ambient atmospheric
pressure.
Note: The temperature of the door body is higher when sterilizing; prohibited to touch to avoid
being burned.
Warning sign: caution to be scalded!
1 It must confirm the following items before opening the door:
 The stroke is in preparation or exhaust steam is finished or drying is finished.
 Inner pressure displays “0”MPa.
 It is in normal operation and the buzzer has alarmed.
 The self-lock device of the door is relieved.
Warning sign: The steam is not exhausted, please do not open the cover
2 Turn the handle counterclockwise
 Turn to limit position counterclockwise to have the radiation bar contracted completely.
 Take notice if it can not rotate counterclockwise, please check whether the self-lock on handle
seat has been relieved.

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 3 Open the door
 When exhaust steam is finished, open the door, a great deal of steam will let out, pay attention
not to be scalded, please open the door a moment later.
4 About door lock structure
 According to the stipulation of pressure vessel safety performance by the country, the device is
set with safety interlock, the door will be self-locked when the inner chamber pressure exceeds
0.027MPa, and it can not be opened at the time.

(2) Proper Method for Inletting Sterilization Objects

1 Pay attention to the uniformity of sterilization
 The package of sterilization articles needs to be small and be inlet in loosen space.
 Package dimension of textile sterilization shall be less than 50×30×30（cm）, the weight does not
exceed 5Kg. Do not put the bottle covered tightly and disinfectant solution in the vessel.
Warning If to operate improperly, the bottle will explode, the liquid attachment will
damage the inner surface of drum body and door.
2 When sterilizing the injection syringe, don’t put injection syringe and cast parts together
directly to sterilize, it needs single package or fixed package, otherwise:
 Castings of injection syringe influences drying effect
 Unused products will be polluted during application period after germicidal treatment.
 It is easy to mix for using used products and unused products after sterilization
 Cover of castings is easy to attach water drops.
3 When using retort pouch, it is suggested to inquire the factory for its performance whether
it has heat resisting property and air permeability.
4 Please do not put moisture sterilization articles in it so as to easily dry.

(3) Parameter Setting Method

1 The equipment program is optional and set freely, it is supposed as follows:
 Replacement time: 0～60 minutes.
 Sterilization time: 0～99 minutes.

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 Drying time: 0～99 minutes.
 Sterilization temperature: 105～134℃ (it is generally 115℃～134℃ in actual).
2 Programming Method is shown as follows:
 Instruction of Parameter Definition
 Sterilization temperature: The lower limit temperature for control and timing during sterilization;
 Replacement time: The time for inletting steam and removing freezing air from inner chamber;
 Sterilization time: Time for timing in sterilization process;
 Drying time: Time for drying stroke timing (excluding the exhaust steam time in drying stroke);
Examples：
Example for Setting Parameter
1. Turn on the power supply, it displays 8888 8888 8888 on display panel nixie tube, all the indicator
lights are on, after control system initialization is finished, it displays interlayer temperature,
sterilization room temperature and number 0 in turn.
2. Press setting key, it displays temperature numeral value needed to be set on the nixie tube,
displaying sterilization temperature, the displayed value is the numeral value that is set last time. The
numeral value flashes by 1S frequency. Meanwhile the sterilization indicator light is on, meaning it
is setting sterilization temperature.
Press ▲ key, the nixie tube will stop flashing when the set sterilization temperature valve increases
by the way of plus 1. The upper limit value of the set sterilization temperature is 134℃, and go on to
press ▲ key, the value is kept at 134℃.
Press ▼ key, the nixie tube will stop flashing when the set sterilization temperature valve decreases
by the way of minus 1. There is no lower limit value for setting sterilization temperature, it decreases
to 115℃, return to 134℃ and decreases circularly.
Press ▲ key for a long time, the nixie tube will stop flashing when the set sterilization temperature
valve increases quickly and continuously by the way of plus 1.
Press ▼ key for a long time, the nixie tube will stop flashing when the set sterilization temperature
valve decreases quickly and continuously by the way of minus 1.
If not to press ▲ key or ▼ key for 10S, the nixie tube will recover to flash. Now the set sterilization
temperature is not saved.
3. Press setting key again, the nixie tube which displays the value 0 displays the replacement time

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value needed to be set, the displayed value is the one set last time. The value is flashing by 1S
frequency (if the previous sterilization parameter is still in setting state and not flashing, the value
will be flashing 10S later). Meanwhile the sterilization indicator light is off, which means it is setting
replacement time.
Press ▲ key, the nixie tube will stop flashing when the set replacement time value increases by the
way of plus 1. Set the upper limit value of replacement time for 60min, go on to press ▲ key, the
value is kept at 60 min.
Press ▼ key, the nixie tube will stop flashing when the set replacement time value decreases by the
way of minus 1. There is no lower limit value for setting replacement time, it decreases to 0, return to
60 min and decreases circularly.
Press ▲ key for a long time, the nixie tube will stop flashing when the set replacement time
increases quickly and continuously by the way of plus 1.
Press ▼ key for a long time, the nixie tube will stop flashing when the set replacement time value
decreases quickly and continuously by the way of minus 1.
If not to press ▲ key or ▼ key for 10S, the nixie tube will recover to flash. Now the set replacement
time is not saved.
4. Press setting key for a third time, the nixie tube which displays the value 0 displays the
sterilization time value needed to be set, and the displayed value is the one set last time. The value is
flashing by 1S frequency (if the previous sterilization parameter is still in setting state and not
flashing, the value will be flashing 10S later). Meanwhile the sterilization indicator light is on, which
means setting the sterilization time.
Press ▲ key, the nixie tube will stop flashing when the set sterilization time value increase by the
way of plus 1. The upper limit value of setting sterilization time is 99min, go on to press ▲ key; the
value is kept at 99min.
Press ▼ key; the nixie tube will stop flashing when the set sterilization time value decreases by the
way of minus 1. There is no lower limit value for setting sterilization time, it decreases to 0, then
return to 99min, it decreases circularly.
Press ▲ key for a long time, the nixie tube will stop flashing when the set sterilization time value
increases quickly and continuously by the way of plus 1.
Press ▼ key for a long time, the nixie tube will stop flashing when the set sterilization time value

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decreases quickly and continuously by the way of minus 1.
If not to press ▲ key or ▼ key for 10S, the nixie tube will recover to flash. Now the set sterilization
time is not saved.
5. Press setting key for a fourth time, the nixie tube which displays the value 0 displays the drying
time value needs to be set, the displayed value is the one set last time. The value is flashing by 1S
frequency (if the previous sterilization parameter is still in setting state and not flashing, the value
will be flashing 10S later). Meanwhile the drying indicator light is on, which means setting the
drying time.
Press ▲ key, the nixie tube will stop flashing when the set drying time value increases by the way of
plus 1. The upper limit value of setting drying time is 99min, go on to press ▲ key, the value is kept
at 99min.
Press ▼ key, the nixie tube will stop flashing when the set drying time value decreases by the way of
minus 1. There is lower limit value for the set drying time, it decreases to 0, then return to 99min, it
decreases circularly.
Press ▲ key for a long time, the nixie tube will stop flashing when the set drying time value
increases quickly and continuously by the way of plus 1.
Press ▼ key for a long time, the nixie tube will stop flashing when the set drying time value
decreases quickly and continuously by the way of minus 1.
If to press ▲ key or ▼ key for 10S, the nixie tube will recover to flash. Now the set drying time is
not saved.
6. Press setting key for a fifth time, nixie recovers the display when turning on the power supply and
meanwhile save the set parameters.
Time Clock Setting
The control system consists of real-time clock, the clock mainly provides the time parameter which
is in accordance with the local time for printer, after the arrival of equipment, users shall adjust time
parameter according to the practical situation, the detailed adjusting method is as follows。
Press starting key and turn on power supply switch, then a voice of “Di”from buzzer can be heard. It
displays 8888 8888 8888 on nixie tube of the panel from left to right in correct order, all indicator
lights are on, after 10S, the nixie tube displays time, they are: year (e.g. 08 year), month (e.g. 04
month), day (e.g.20days), hour(e.g. 12 hours), minute(e.g.00 minute), second(e.g.00 second) in turn.

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1) Press starting key for the first time, the value of year is flashing, presses ▲ key or ▼ key to adjust
the value of year. If not to press ▲ key or ▼ key, the value will be flashing 10S later.
2) Press starting key for the second time, the value of month is flashing, press ▲ key or ▼ key to
adjust the value of month. If not to press ▲ key or ▼ key, the value will be flashing 10S later.
3) Press starting key for the third time, the value of day is flashing, press ▲ key or ▼ key to adjust
the value of day. If not to press ▲ key or ▼ key, the value will be flashing 10S later.
4) Press starting key for the fourth time, the value of hour is flashing, press ▲ key or ▼ key to
adjust the value of hour. If not to press ▲ key or ▼ key, the value will be flashing 10S later.
5) Press starting key for the fifth time, the value of minute is flashing, press ▲ key or ▼ key to
adjust the value of minute. If not to press ▲ key or ▼ key, the value will be flashing 10S later.
6) Press starting key for the sixth time, the value of second is flashing, press ▲ key or ▼ key to
adjust the value of second. If not to press ▲ key or ▼ key, the value will be flashing 10S later.
After adjusting parameters, the parameters will be saved automatically.
Turn off the power supply and the clock parameter adjustment is finished.
Adjust the clock parameters every six months to make sure the time exact.
(4) Instruction of Sterilization Sequence
Preparation Stroke
In preparation procedure, it mainly finishes: load the sterilized articles, turn on the water source
switch, check whether the water source pressure complies with the requirement and close the door of
sterilization room.
Electrify and plug the attaching plug in power supply socket, turn on the breaker switch and the
power supply switch of control system. It displays 8888 8888 8888 on the nixie tube of display panel,
all indicator lights are on, after the control system initiation, the nixie displays jacket temperature
and sterilization room temperature 0, the slow exhaust steam light and fast exhaust steam light of
indicator light are on, then set working parameters (if necessary). The setting range can refer to
sterilization reference table for various kinds of articles (see Table 3) and comply with different
sterilization articles to set sterilization temperature/sterilization time.

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 Sterilization Reference Table for Various Kinds of Articles (Table 3)
Sterilization Time Steam Pressure Steam Relative
Category of Sterilization Articles
min MPa Temperature ℃
Category of Rubber 15 0.1～0.11 121

Category of Dressing 10 0.215 134

Category of Vessel 8 0.215 134

Category of Equipment 8 0.215 134

Category of Bottling Solution 30 0.08 115

Curve Diagram for Working Procedure

P （MPa）
Sterilizing
temperature

exhaust
heating

sterilizing dry

Curve Diagram for Setting Working Procedure (Taking parameters for example)

Temperature Rise Stroke

Press starting key, after entering temperature rise stroke, both the door light and starting light are on,
if the water level is in the lower level inside the generator, the water break light and inlet light are on,
the water is fed inside steam generator. Meanwhile slow exhaust steam and fast exhaust steam lights
are on, fast exhaust steam valve, slow exhaust steam valve and inlet valve are opened.
When the water level reaches the high water level, steam valve and inlet valve will be closed and
inlet indicator light is off. The electric heating pipe starts to heat and the heating indicator light is on.
The temperature in the steam generator starts to rise.
When heating to the set sterilization temperature +0.5℃, inlet valve and fast exhaust steam valve

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will be opened to do gravity replacement. Remove freezing air of the sterilization room. Fast exhaust
steam indicator light is on.
The nixie tube displays jacket temperature, sterilization room temperature and replacement time. The
replacement time is decreasing.
When the replacement time reduces to 0, the fast exhaust steam valve will be closed and the inner
chamber will continue to heat up. The fast exhaust steam valve indicator light is off.
Start pulsating movement of fast exhaust steam valve to drainage before not reaching sterilization
temperature.
The nixie tube displays jacket temperature, sterilization temperature and sterilization time in correct
order.
Enter sterilization stroke when reaching the set sterilization temperature.
Sterilization Stroke
After entering sterilization stroke and reaching the sterilization temperature, it will start to sterilize
and timing. During the stroke, stop timing when the temperature is lower than the set temperature.
Close the inlet valve when the temperature is 1℃ higher than sterilization temperature, inspect the
delay exhaust steam automatically when the temperature is 3℃ higher than sterilization temperature.
The nixie tube displays jacket temperature, sterilization temperature and sterilization time decreasing
in correct order.
The pulsation of slow exhaust valve is opened to drainage.
When the sterilization time is over, it will enter drying stroke.
Drying Stroke
Enter the drying stroke and remove the steam out of inner chamber, when the temperature in the
sterilization room is lower than 105℃, the buzzer will alarm to remind the users to open the door for
drying. Pay attention to the pressure of sterilization room and open the door for drying.
Now the nixie tube displays jacket temperature, sterilization temperature and drying time decreasing
in correct order.
When the drying time reduces to 0, the entire sterilization period is finished (Note, if to set the drying
time to be 0, The exhausting steam and directly buzzing of the buzzer will be transferred to finish).
Finish Stroke
When the buzzer buzzes, take out the sterilization articles.

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Note: As for sterilized fluid, pay attention to not opening the door directly, but turn the door in place,
open the door to 5 mm and take out the articles, until the liquid temperature of the inner chamber
reduces below 50 ℃.
Warning After entering working state, please do not try to open the door.

9 Attentions in Use
Precautions prior to use
A. Horizontal pressure steam sterilizer is an equipment, which takes advantage of saturated steam to
sterilize the dressing packages and various medical appliances. Please pay attention to the following：
(1) Sterilization articles of this device are the ones with the characteristics of high temperature
resistance and high humidity resistance.
(2) Sterilization articles of this device shall be washed prior to use. Otherwise, the dirt attached will
affect the sterilization effect.
(3) Under normal circumstances, it is different from the drying degree of the sterilization articles.
B. Security
Since the device belongs to Class I pressure vessel, please confirm the responsible person in order to
ensure the proper and safe way to use this device.
C. Horizontal pressure steam sterilizer in normal use will produce sound pressure ≤85 dB, please be
relaxed to use.

Daily use and maintenance

Warning Since the device is Class I pressure vessel, in order to use properly and safely every day,
please pay attention to the following while repairing and maintaining.
(1) Please refer to “Operation of the door" when opening the door, and check whether the sealing
materials of the door have been cracked and damaged.
(2) Please refer to "Repair and Maintenance" for sealing material of door.
(3) Please be careful not to be burnt when adding or taking out the sterilization articles.
(4) Please confirm the indications of the pressure gauges during the use of this device. Be sure to cut
off power supply and check the control system when the pressure exceeds 0.25 MPa.
(5) Please check whether the inner chamber and exhaust steam port has sundries before use every

17
 day. If there are sundries piled up on the filter net, it will cause incomplete or bad sterilization.
(6) Please be sure to maintain the performance of device, please self-check at regular time.

10. Maintenance and Repair

Please refer to this chapter for the maintenance of the equipment
Warning Do not reconstruct the equipment.
Replacement method of sealing materials
 Sealing materials of the door are the main parts to seal between the door and drum body. It must
be checked regularly and have timely replacement when finding breakages.
 Get the right size and complete sealing materials prepared.
 Take out the aging or damaged sealing materials with wooden tools.
 Wipe off the sundries on the sealing materials of the installed door with an alcohol-attached
wipes and insert new materials.
 Press the sealing material tightly with wooden tools; close the door 1 / 2 circle after the door
switch is in working process.
 Test the machine; Shut the door tightly (No steam leakage occurs when sterilization).
 Inspect every part of the door comprehensively.

Replacement for Interlocking Apparatus Sealing Element of the Door

 Open the door and disassemble round copper cover or stainless steel cover.
 Remove the old cup packer and clean the installing position with wipes.
 Replace new parts.
 Test the machine (No steam leakage in the position of the door handle during sterilization)

Filling up Grease Lubricant to the Door Mechanism

Door mechanism is the part needed to be opened and closed frequently, it is always under high
temperature, so it needs to fill up grease lubricant regularly (it is usually about 2 months), and the
method of filling up grease lubricant is as follows:
Preparation Parts:

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 Prepare No.4 high-temperature grease （ZBE36009—88） ZN6—4
 Gauze glove
 Wipes
 Necessary tools
Order of filling up grease lubricant is as follows:
 Disassemble the ball-end part of fixed radiation bar.
 Clean up the aging grease lubricant in screw thread and the ball-end part of fixed radiation bar.
 Re-install the disassembled parts in original order.
 Rotate the door several times repeatedly to have it smeared evenly.
Don’t make the door rotate in the open position in order to avoid the radiation bar extending to
damage the external appearance of the equipment.

Maintenance for Other Components

Safety valve: pull up the draw rod of safety valve every other month, exhaust steam several times
repeatedly to avoid failure.
Pressure gauge: inspect it regularly, check every year.
Breaker: inspect it regularly, if there is any fault, please replace it in time.

The replaced fuse specification shall comply with the regulation in the user’ manual and it is the
same with the original fuse specification.

Make sure the grounding connection of sterilizer and electric outlet is in good state.

Common Fault and Troubleshooting

Reason Analysis and Troubleshooting Fault

Whether the power is on
Whether the circuit breaker is closed 1. The stroke indicator light is not on
Whether the fuse wire on control panel is broken
Whether the switch of door is closed 2. Press “starting” and don’t enter into the
the corresponding indicator light is on heating process
Make sure the power supply is on
Whether there is fault about water supply pipe 3. Do not heat
Whether the water level has reached

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 Whether to prepare the stroke
Whether it is drying or finished 4. The door can not be opened
Whether the inner chamber pressure is 0.21MPa
Rotate the door handle by clockwise in place
5. The door can not be closed tightly
Lubrication state of the door
Whether the outer chamber pressure is 0.22MPa
Whether the inner chamber pressure is 0.22MPa 6.Sterilization time is too long
Whether the state of drainage is good
During the sterilization, if it buzzer alarming appears and the nixie tube displays error message, it
means there is fault in working process, the details are shown as follows:
Error 1
It means the door is not closed tightly or the door switch is off. Check the door switch or the door.
If to press the starting key without closing the door, it will display the above error message.
If to display the error message, turn on fast exhaust steam valve and slow exhaust steam valve and
turn off electric heating pipe.

Error 2
It means the water level reaches to the low level inside the evaporator, check the low water level
switch or whether it needs to add water.
If to display the error message, turn on fast exhaust steam valve, slow exhaust steam valve and inlet
valve and turn off electric heating pipe.
At the moment, if it needs to add water, please do not open the door and cut off the power supply till
the pressure in sterilization room and evaporator returns to 0, or turn off the power supply to wait the
evaporator to be cool gradually then feed the water.

Error 3
It means the heating time has reached to 2 hours but the temperature inside the evaporator has not
already reached to the set temperature.
If to display the error message, turn on the fast exhaust steam valve, slow exhaust steam valve and
inlet valve and turn off electric heating pipe.
At the moment, it needs to check whether the power supply is in the phase-lack state and the electric
heating pipe is burnt out.

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11 Sign Instruction

Caution to be scalded!! Warning sign of scald

Steam in,stop opening! Warning sign

Safety Valve Safety valve

Exhaust External steam exhaust port

AC220V 60Hz 1-P 9KW Requirement of external power supply

Grounding sign

↙↘ Door-Lock indication sign

12. Instruction of Circuit Breaker and Fuse Capacity

a) With three-phase circuit breaker.
b) The fuse is 250V/2A φ5×20mm.

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13 Principle Schematic Diagram of Pipeline

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14 Electric Wiring Diagram

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