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High Pressure Steam Sterilizer
SM200 SM300
SM310 SM510
Second Edition
● Thank you for your Yamato Scientific RE series Rotary Evaporator purchase
● For best test data, we recommend you purchase our BM series Water Bath.
Please call Yamato Scientific for more details.
Read and apprehend the important warnings in
this instruction manual prior to use.
Yamato Scientific America Inc.
Santa Clara, CA
(800) 292-6286
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Table of Contents
1. Specifications.................................................................................................................................1-2
2. Safety Information..........................................................................................................................3-7
Safety Symbols.................................................................................................................................... 3
Safety Precautions ...........................................................................................................................4-6
Hazardous Material .............................................................................................................................7
3. Identification of Parts...................................................................................................................8-11
External................................................................................................................................................ 8
Internal............................................................................................................................................9-10
Control Panel..................................................................................................................................... 11
4. Installation...................................................................................................................................12-18
Environmental Requirements.......................................................................................................12-13
Power Requirements......................................................................................................................... 14
Initial Set Up .................................................................................................................................15-18
5. Operational Precautions............................................................................................................ 19-20
6. Sample Run Examples.................................................................................................................... 21
7. Program “MODE” ....................................................................................................................... 22-27
“MODE” key Information.................................................................................................................... 22
Display Symbols................................................................................................................................ 23
Flowchart........................................................................................................................................... 24
Setting Sterilization Temperature and Time...................................................................................... 25
Setting Dry Temperature and Time................................................................................................... 26
Special Program Features................................................................................................................. 27
8. Run “MENU” ...............................................................................................................................28-33
Selection of Operation....................................................................................................................... 28
“STERILIZE” Procedure..............................................................................................................29-30
“STERILIZE & DRY” Procedure .................................................................................................31-33
9. Special Control Functions......................................................................................................... 34-35
View Parameter during Operation..................................................................................................... 34
Interrupt Program during Operation .................................................................................................. 35
Pressure Relief Switch ...................................................................................................................... 35
Checking chamber temperature during stand-by mode.................................................................... 35
10. Troubleshooting Guide............................................................................................................36-37
Safety................................................................................................................................................. 36
Self-diagnostic Circuitry..................................................................................................................... 36
Error Code List .................................................................................................................................. 36
In case of power failure ..................................................................................................................... 36
Problem Solving Chart....................................................................................................................... 37
11. Wiring Diagram.........................................................................................................................38-39
12. Piping Chart................................................................................................................................... 40
13. Maintenance.............................................................................................................................. 41-42
Daily Maintenance............................................................................................................................. 41
Weekly Maintenance......................................................................................................................... 41
Monthly Maintenance ........................................................................................................................ 42
14. After Sale Service and Warranty.................................................................................................. 43
Request for Repair ............................................................................................................................ 43
15. Replacement Parts List ................................................................................................................ 44
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Specifications
SM200/300
Model SM200 SM300
System Automatic high pressure steam sterilizer
Temperature
Setting Range
Maximum Operational Pressure 0.18MPa (26.1psi) 0.2MPa (29.0psi)
Power Requirement AC115V 13A (50/60Hz) AC115V 17A (50/60Hz)
Controller HiTec IV CR Type Microprocessor Control
Sensor 1 (Chamber Temp.)
Sensor 2 (Water Temp.) Thermocouple (Type T)
Heater 1 (Sterilization) 1.3kW 1.7kW
Heater 2 (Drying) 1.0kW 1.5kW
Safety
External Dimensions (W×D×H):
Sterilization
Drying
Timer
Main circuit breaker, Over pressure safety valve,
Self-diagnostic circuitry; Monitors any abnormality of the temp sensor,
Low water sensor, SSR, and heater
105℃〜123℃ 105℃〜128℃
150℃〜180℃
Pt100Ωresistance thermometer sensor
1min. 〜 99hours and 59min. 100 〜 999hours
16.1”×18.5”×37.4”
41cm×47cm×95.3cm
17.3”×20.9”×38.0”
44cm×53cm×96.5cm
Internal Dimensions
Capacity (cu. ft): 0.8 1.2
Capacity (liters): 22 36
Weight
Accessories
Basket 2
Bottom Plate 1
Steam Saucer
Instruction Manual 1
Warranty 1
9.4”, 17.5”
(Diameter, Depth):
Bottle 1
24cm, 44.5cm
143.3 pounds
65kg
１
11.8”, 17.5”
30cm, 44.5cm
176.4 pounds
80kg
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Specifications
SM310/510
Model SM310 SM510
System Automatic High pressure steam sterilizer
105℃〜128℃
150℃〜180℃
17.3”×20.9”×42.7”
44cm×53cm×108.5cm
Timer
Sterilization
Drying
Pt100Ωresistance thermometer sensor
1min. 〜 99hours and 59min. 100 〜 999hours
Main circuit breaker, Over pressure safety valve,
Self-diagnostic circuitry; Monitors any abnormality of the temp sensor,
Low water sensor, SSR, and heater
17.3”×20.9”×38.0”
44cm×53cm×96.5cm
Temperature
Setting Range
Maximum Operational Pressure 0.2MPa (29.0psi)
Power Requirement AC220V 11A (50/60Hz)
Controller HiTec IV CR Type Microprocessor Control
Sensor 1 (Chamber Temp.)
Sensor 2 (Water Temp.) Thermocouple (Type T)
Heater 1 (Sterilization) 2.0kW
Heater 2 (Drying) 1.5kW
Safety
Intend Dimensions (W×D×H):
Internal Dimensions
(Diameter, Depth):
Capacity (cu. ft): 1.2 1.8
Capacity (liters): 36 51
Accessories
Bottom Plate 1
Steam Saucer
Instruction Manual 1
11.8”, 17.5”
30cm, 44.5cm
Weight
Bottle 1
Basket 2
Warranty 1
176.4 pounds
80kg
１
11.8”, 26.2”
30cm, 66.5cm
187.4 pounds
85kg
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Safety Information
Safety Symbols
Safety Information
This instruction manual contains various symbols and safety information. Ignoring safety information
can cause such situations as listed below. Please read the following warning and caution signs in this
manual prior to use.
Warning
Caution
(Note 1) Serious injury: Bodily harm by electric shock, bone fracture or poisoning which may require
hospitalization.
(Note 2) Injury: Bodily harm by electric shock, bone fracture or poisoning which may require
hospitalization.
(Note 3) Damage: Any damage on equipment, facility, structure, etc.
Indicates the possibility of serious or fatal injury. (Note 1)
Indicates the possibility of injury (Note 2) or damage (Note 3) to the
equipment.
Meaning of graphic indications
Shows warnings or caution.
Specific contents are described aside each sign.
Shows users important information.
Specific contents are described aside each sign.
Shows users important information.
Specific contents are described aside each sign.
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Safety Information
Safety Precautions
Do not use this unit for any purpose other than its intended use, described in this manual.
This unit is not explosion proof. Never use in flammable or explosive gas environments.
Be sure to ground the unit. Electric leak could cause electrical shock or fire.
Be sure to use a power supply with more than the rated capacity specified in this manual. Use
of a power supply without the correct rated voltage and current could cause fire or electric
shock.
If smoke or any strange odor should disburse from this unit, turn the breaker off immediately
and pull out the main power cord. Then contact Yamato Scientific. Neglecting this procedure
can result in fire or electric shock. Never try repairing the unit yourself.
Forcibly bending, pulling, wrenching or extending the power cord can cause a fire or electric
shock.
Overheat or fire can occur if the power cord is bundled or if an object is on the cord.
The use of explosive, flammable or such compounds can cause explosion or fire. (See Pg.7)
Disassembling this unit can cause fire, electric shock or other crisis’s.
The exhaust is located on the right side of the unit. Possibility of personal injury if you come in
contact with this area during operation or for a period of time after use.
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Safety Information
Safety Precautions
Do not plug the exhaust. Any obstruction in the exhaust may cause the tank to build pressure
and become hotter the normal.
Do not attempt to open the sterilizer lid until the pressure is at “0psi”.
Do not open drain when vessel is pressurized. Since sterilization water is hot just after
sterilization, let the water cool before draining.
The bottle, located in the inside of the front door contains hot water after operation. Let the
water cool prior to removing the bottle. To avoid possible bodily injury, do not open the door
during operation.
The plate, lid and surrounding areas are hot after operation. To avoid bodily injury, do not touch
these areas. Always wear protective gear when removing a processed load.
If you attempt to open the lid when pressurized high pressure steam could
cause serious bodily injury. Do not stand close to the lid since steam will
exhaust once opened.
Once the lid is open and all steam has exhausted remove sterilized material with heat-resistant
gloves to prevent bodily injury.
Hot steam will disperse out of the louvers located in the back of this unit if a malfunction
occurs. Do not close the louvers.
When using the pressure relief switch be sure not to touch the exhaust areas of the sterilizer
since high pressure steam will exhaust.
Do not operate this unit without a basket.
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Safety Information
Safety Precautions
In the event of electrical storm turn off the main circuit breaker. Neglecting this procedure can
result in fire, electric shock or other troubles due to thunderbolts.
In the event of a power interruption or the main circuit breaker is switched off during operation
the sterilizer solenoid exhaust valve will remain closed once power has been restored. The
solenoid exhaust valve will not open until the chamber temperature reaches below boiling
point.
Do not attempt to open the sterilizer lid until the pressure is at 0psi.
Use the pressure relief switch to reduce the pressure inside the chamber to “0psi”. (refer to
page 35 for instruction how to use the pressure relief switch)
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Safety Information
Hazardous Material
The following material is not recommended for use on the sterilizer
Nitroglycol, Nitroglycerin, Nitrocellulose and other explosive nitric
esters.
Trinitrobenzene, Trinitrotoluene, Picric acid, and other explosive
nitro compounds.
Peracetic acid, Methyl ethyl ketone peroxide, Benzoyl peroxide and
other organic peroxides.
Sodium azide and any other metallic azide compound.
Metallic lithium, Metallic potassium, Metallic sodium, Yellow
phosphorus, Phosphorus sulfide, Red phosphorus, Celluloid,
Calcium carbide(Carbide), Phosphide lime, Megnesium powder,
Aluminum powder, other combustible metal powders and Sodium
dithionite (Hydrosulfite).
Potassium chlorate, Sodium chlorate, Ammonium chlorate and other
perchlorate.
Potassium perchlorate, Sodium perchlorate, Ammonia perchlorate,
and other perchlorates.
Potassium peroxide, Sodium peroxide, Barium peroxide and other
inorganic peroxides.
Potassium nitrate, Sodium nitrate, Ammonia nitrate and other
nitrates.
Explosive
Explosive
Substance
Combustible
Substance
Oxidant
Flammable
Ignitable
Substance
Combustible
Gas
Sodium chlorite and other chlorites.
Calcium hypochlorite and other hypochlorites.
Ethyl ether, Gasoline, Acetaldehyde, Propylene chloride, Carbon
disulfide and other substance with the flash point below minus 30ºC.
Normal hexane, Ethylene oxide, Acetone, Benzene, Methyl ethyl
ketone and any other substance with the flash points not lower than
minus 30ºC and below 0
Methanol, Ethanol, Xylene, Pentyl acetate (Amyl acetate) and other
substance with the flash point not lower than 0ºC and below 30ºC.
Kerosene oil, Light oil, Turpentine oil and Isopentyl alcohol(Isoamyl
alcohol), Acetic acid and other substances with the flash point not
lower than 30ºC and below 65ºC
Hydrogen, Acetylene, Ethylene, Methane, Ethane, Propane, Butane
and other flammable gas at 15ºC and under 1 atmosphere.
o
C.
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Identification of Parts
A
External
rm
Panel Guard
Control Panel
Pressure Gauge
Door Latch
Handle
Lid
Exhaust (U-shaped Pipe)
Steam Saucer
Bottle Water Window Viewer
Louver
Louver
Pressure Relief Switch
Circuit Breaker
Louver
Power Cord
Terminal (Optional)
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Identification of Parts
r
r
Internal
Thermal Insulato
Safety Valve
Filte
Heater 1
(For Sterilization)
Sensor 2
(For Water Temperature)
Solenoid Exhaust Valve
Solenoid Drain Valve
Chamber
Sensor 1
(For Chamber Temperature)
Service Plug
Micro Switch
Heater 2
(For Drying)
Bottom Plate
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Identification of Parts
r
Internal
Micro Switch
Plug
Silence
Drain Valve
Exhaust Hose
Sensor 2
(For Water Temperature)
Flange
Clamp
Solenoid Exhaust Port
Filter
Heater 1 (For Sterilization)
Sensor 1 (For Chamber Temperature)
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Identification of Parts
Control Panel
⑬
⑭
⑪
⑫
⑤
⑦
⑥
⑧
⑨
⑩
③
②
①
ENTER key Start and stop operation, fix the set point/function changed.
② △▽(up down) key
③
MENU key Choose “STERILIZE” or “STERILIZE & DRY” before operation.
④
MODE key Use at the beginning/end to change or confirm set point/function.
⑤
Main display Shows mainly chamber temperature and set temperature.
⑥
Sub display Shows mainly time left and set time.
⑦
Heater lamp Stays lit or blinks when heater is on.
⑧
STERILIZE lamp Stays lit or blinks in sterilization process.
⑨
DRY lamp Stays lit or blinks in drying process.
⑩
END lamp Stays lit in the end of operation.
⑪
STERILIZE lamp
⑫
STERILIZE & DRY lamp
⑬
TROUBLE lamp Stays lit when the unit is out of order.
⑭
SET lamp Stays lit when pushing MODE key to check set point etc.,
Change set point/function.
Blinks when “STERILIZE” menu is selected before operation, and
stays lit during operation.
Blinks when “STERILIZE & DRY” menu is selected before operation,
and stays lit during operation.
④
①
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Area of installation
Never install sterilizer near any flammable,
explosive, or corrosive gas components.
Fire, explosion, or other troubles may occur
when turning the breaker on and off.
Area of installation
The sterilizer should not be installed in the
following environments.
① Under direct sun
② In temperatures below 5℃, or above 35℃
③ Where severe changes in temperature occur
④ In very humid or dusty locations
⑤ Under water
⑥ In vibrating or shock areas
Installation
Environmental Requirements
Level surface
If the sterilizer is not on a level surface the
heater will reach a high temperature causing
a interruption of the operation.
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Environmental Requirements
Provide ample space surrounding the sterilizer
Provide ample space surrounding the unit as
indicated below.
・Space for lid to open...13 inches or more
・Space to open door.....10.2 inches or more
・Space for ventilation...5.9 inches or more
Do not install under a low ceiling
Installation
An abundant amount of steam will spout out of the lid
just after operation. Do not install the sterilizer under
any electrical components such as an alarm.
Lock casters
Be sure to fasten the two front casters
after positioning the unit.
Lock
Release
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Installation
de)
de)
Ground outlet
Ground lead
Power Requirements
Ground
To prevent shock from electric current leak, be sure to connect the ground lead.
Contact Yamato Scientific or an electrician if a power source with a ground terminal is needed.
Never connect ground to with gas pipe, water pipe, telephone line, or lighting conductor.
SM200/300 SM310/510
Power plug
Ground outlet is recommended for use.
Connect to sufficient power source
Be sure to connect the power cord to
sufficient power source.
(See right table)
Attaching the power cord
Green (Ground Lead)
Black (Power Si
White (Power Si
No power plug is attached to these types of units.
Ground properly according to power source.
Type Power Source
SM200
SM300
SM310
SM510
AC115V
single-phase
AC115V
single-phase
AC220V
single-phase
AC220V
single-phase
Necessary
Capacity
13A or more
17A or more
11A or more
11A or more
Be sure that the breaker is turned off prior to connecting the power cord. The power cord plug is
not attached to the SM310 and 510. Select an adequate capacity plug and terminal according
to the connecting power source.
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O
CLOS
Filter Installation
Be sure to install the filter prior to operation.
Install the bottom plate
The bottom plate balances the material in the
chamber and protects heater 1 and sensor 2. Be
sure to install the plate.
Installation
Initial Set Up
Bottom Plate
Close the drain valve
Be sure to close the drain valve.
(at a level)
E
PEN
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Installation
Initial Set Up
Install the bottle
The sterilizer drains water forcibly during the “STERILIZE & DRY” process. Hot and high
pressure water will spout out to the bottle. To prevent the user from operating the sterilizer
without the drain bottle a micro switch will not allow the sterilizer to operate without the bottle.
①Open the front door of the sterilizer and
remove the bottle. The display will flash
indicating the bottle is not in place.
Silencer
Plug
Exhaust Hose
Micro Switch
②Pour 1500ml of water into the bottle. This
water is used to cool the hot steam coming
out of the chamber.
The unit drains water forcibly out of the
container into the bottle during the
“STERILIZE & DRY” process. If too much
water is poured into the bottle, the drained
hot water can overflow. Follow the water
volume specified.
1500ml
③Put the silencer into the bottle that contains
1500ml water.
Exhaust Hose
Silencer
⑤Once the bottle is set, the micro switch is
pushed, which allows the sterilizer to
operate.
④After the silencer is placed into the bottle,
push the bottle upward, inside the door
while
putting the exhaust hose into the bottle.
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Pour water into the chamber
Pour water into the chamber according to the
gauge on the bottom plate.
Failing to pour adequate water will result in a
interruption of operation. Confirm the water
level after each sample run.
See table on right for water volume
information. Using over the maximum level
of water will result in hot water spouting
from the bottle.
High-level
SM200
SM300
SM310
Installation
Initial Set Up
Low-level
Requirement
1900〜2000ml
2800〜3000ml
2800〜3000ml
SM510
Use distilled water for sterilization
Use distilled water to prevent collection of mineral deposits and corrosion of chamber
components. Under ground water is not recommended.
Placing materials into sterilizer
Place the material into the basket and insert
into the chamber. Never block the steam
exhaust port. Always use a basket for
material being sterilized.
2800〜3000ml
Exhaust Port
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Installation
Initial Set Up
Close the door before operation
Be sure to close the front door of the sterilizer before operation. An open door may cause the
bottle to fall during operation. Do not open the front door during operation.
Close the lid
Be sure to close the lid completely by turning
the handle clockwise in a 1/4-1/2 circle after
it touches the chamber. If it is not closed
properly, steam will escape from the
chamber.
Set the steam saucer
This unit comes equipped with a steam
saucer to prevent any steam from dropping
to the floor. See right illustration to place
the saucer under the exhaust.
CLOSE
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Opening lid
Operational Precautions
When opening the lid, be sure that the
pressure gauge reads “0psi". Proceed to open
slowly. If the lid is opened at high pressure, hot
steam will spout out.
Drainage
After operation, the water in the chamber is
very hot. Please let the water cool before
draining. Place a drain pan less than 2 inches
in height under the drain valve or connect a
drain hose.
Never drain water during operation. If you
open the drain valve at high pressure, hot
water will spout out.
OPEN
OPEN
Water bottle window viewer
Check the water level window. If water level is
close to the upper limit indicated with the caution
label, be sure to drain some water before using.
The upper limit of
Water Bottle
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Certain areas become very hot
During and following operation, the areas around
the lid become very hot. Be careful not to touch
these areas.
◆Gray areas in the illustration on the right
become especially hot.
Lid gasket
Any damage or dust on the lid gasket/flange of the
chamber (gray area in illustration on right) will allow
steam to escape. Be sure to keep this area clean and
avoid contacting with baskets, etc. when installing or
removing materials from the chamber.
Operational Precautions
The gasket may deteriorate according to use. If steam escapes frequently, you may need to
change the gasket.
Panel guard
The panel guard was designed to protect the
display/keypad. Do not hold the panel guard to
move the sterilizer.
“ENTER” key
The “ENTER” key will interrupt the program operation.
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Sample Run Examples
How to operate the “STERILIZE” process
Sterilize operation using a waste bag.
① Be sure to open the mouth of the bag to let steam.
② Keep the bag approximately 2/3” height of the total depth of the chamber (Example: SM200 is
17.5” deep, so the bag should be placed 11.5” from the bottom). If the bag is placed higher than
this point, steam will not disperse easily and may result in incomplete sterilization, in addition,
the bag can easily cover the exhaust in the upper part of the container.
③ Set the temperature lower than the heat resisting point of the bag.
④ Set time depends on quality and quantity of the material being sterilized. (See chart below)
Example:
Sample Temperature Time Notes
Gauze
Petri Dish
◆The above data is only for reference use. The outcome of sterilization varies according to quality
and quantity of substance and types of containers. The result of sterilization shall be checked
using a chemical indicator.
NOTE: Never operate this unit without a basket.
121℃
121℃
30min. 5 dry gauze’s
40min. 30 petri dishes with lid
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How to use the “MODE” key
Program “MODE”
“MODE” key Information
Î
Turn the circuit breaker on.
The sterilizer automatically starts in
stand-by mode, and the display
show current set point.
Setting other parameters
・Turn the circuit breaker on.
・Push the “MODE” key.
・Use the ▽△keys to select desired parameter.
Push the “MODE” key.
Î
→Main display starts blinking
(Sterilization Temp.)
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List of Symbols in the display
Program “MODE”
Display Symbols
B
D
E
O
S
Symbol Word Meaning
BOTTLE Bottle : Bottle isn’t set.
DRY TEMPERATURE Function of setting drying temperature.
DRY TIME Function of setting drying time.
END End : To indicate the end of operation.
ERROR Error : To indicate the occurrence of trouble.
OFF Off : Signal function is switched off.
ON On : Signal function is switched on.
STERILIZE
TEMPERATURE
STERILIZE TIME Function of setting sterilization time.
STOP Stop : To indicate operation stop.
SIGNAL Signal : Buzzer (at the end of operation)
Function of setting sterilization temperature.
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Program “MODE”
Flowchart
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Program “MODE”
Setting Sterilization Temperature and Time
Setting sterilization temp/time
◆Used to set the sterilization temp/time.
◆Simply push the ”MODE” key to cancel the set up at any point.
◆The sterilizer automatically sets in stand-by mode if it is untouched for more than a minute during
set up.
Stand-
by
S.
Temp.
S.
Time
D.
Temp.
Turn the breaker on.
The main display blinks sterilization temperature, and the sub
display blinks sterilization time.
Push the “MODE” key.
The main display blinks
sterilization temperature.
Push the “ENTER” key. At this time, you can change the
sterilization temperature.
Input the sterilization temperature desired by pushing the▽△
keys.
▽key…To lower temperature.
△key…To raise temperature.
Push the “ENTER” key.
The changed sterilization temperature is fixed, and the panel
shows the next function, sterilization time set-up.
Push the “ENTER” key again.
You can now change the sterilization time.
Input sterilization time you desire by ▽△key.
▽key…To reduce time.
△key…To increase time.
Push the “ENTER” key.
The changed sterilization time is fixed, and the panel blinks the
next function, dry temperature set-up.
Push the “MODE” if the dry mode will not be in use. If the dry
mode will be in use, press the “ENTER” key and continue to the
next page.
, and the sub display flashes
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Dry Mode Temperature and Time
Input the dry temperature you desire by ▽△key.
▽key…To lower temperature to 150℃.
△key…To raise temperature up to 180℃.
D.
Temp.
Push the “ENTER” key.
The changed dry temperature is fixed, and the panel blinks the
next function, dry time set-up.
Push the “ENTER” key again.
You can now change the dry time.
Program “MODE”
Setting Dry Temperature and Time
D.
Time
Input the dry time you desire by ▽△key.
▽key…To reduce time.
△key…To increase time.
Push the “ENTER” key. The changed dry time is fixed and the
panel display automatically returns to stand-by. The displays
blinks newly set sterilization temperature and time.
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Program “MODE”
Special Program Features
Buzzer
Signal on - buzzer at the end of a cycle
Signal off - no sound alert at the end of a cycle prior to or during operation.
◆You may select the “Signal on/off”.
Selection of “signal on/off”
Push the “MODE” key.
The main display blinks
sterilization temperature.
Push either the▽△keys to search the panel display(illustrated on
left) to the desired setting..
Push the “ENTER” key.
The panel display changes places and the setting can be changed.
Push either ▽△keys to display your selection.
Push the “ENTER” key.
The change on signal is fixed, and the panel display returns to stand
by.
, and the sub display blinks
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Selection of Operation
Selecting operation
The following procedure allows the user to select the desired operation.
・Turn on main circuit breaker.
・Push “MENU” key to select sterilize. Push “MENU” key again to select sterilize &
dry.
●Menu change can only be made during stand-by mode. Once operation begins
you can not change menu setting.
Run “MENU”
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“STERILIZE” procedure
Check the following:
① Is the drain valve closed? Pg.10
② Is the drain filter in place? Pg.15
③ Is the bottom plate set? Pg.15
④ Is the bottle set? Pg.16
⑤ Is water in chamber? Pg.17
⑥ Is the lid closed? Pg.18
Run “MENU”
“STERILIZE” Procedure
◇Turn on the main circuit breaker(located on the left side of
the unit).
◇Push the “MENU” key and select “STERILIZE”.
（See P28）
◇Set the sterilization temperature and time as you desire.
(See P25)
→The main display blinks the set temperature.
→The sub display blinks the set time.
→The sterilize menu lamp comes on and off.
◇Push the “ENTER” key
Operation begins. The sterilization heater turns on.
The solenoid exhaust valve remains open. Air purges out of
the chamber. (Approximately 20-25 minutes)
→The main display shows water temperature and heater
lamp.
→The sub display goes off.
→Sterilize lamp comes on and off.
→Sterilize menu lamp blinks.
At the end of air purge, the solenoid exhaust valve closes,
and pressurization starts. (Approximately 20-25 minutes)
→The main display shows the chamber temperature.
→Sterilize lamp blinks.
→Sterilize menu lamp is lit.
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Run “MENU”
“STERILIZE” Procedure
When the chamber temperature reaches the set temperature,
sterilization process begins and the time counter starts. At
this time, the sub display will show the sterilization time
remaining.
→The main display shows chamber temperature.
→The sub display shows the remaining sterilization time.
→Sterilize lamp is lit.
→Sterilize menu lamp is lit.
Natural cooling begins when the set sterilization time is
complete. At this time, the heater will automatically shut off.
→The main display shows chamber temperature.
→The sub display blinks
.
→Sterilize lamp is lit.
→Sterilize menu lamp is lit.
To prevent bumping, the solenoid exhaust valve opens once
the chamber temperature drops below boiling point.
→The main display shows chamber temperature.
→The sub display shows
.
→End lamp is lit.
→Sterilize menu lamp is lit.
◇Push the “ENTER” key.
The “ENTER” key resets the microprocessor. You may now
run another cycle.
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Run “MENU”
“STERILIZE & DRY” Procedure
“STERILIZE & DRY” procedure
Check the following.
①Is the drain valve closed? Pg.10
②Is the drain filter in place? Pg.15
③Is the bottom plate set? Pg.15
④Is the bottle set? Pg.16
⑤Is water in chamber? Pg.17
⑥Is the kid closed? Pg.18
In “STERILIZE & DRY” operation, the water is automatically drained from the chamber to
the bottle before the drying process. Be sure to check the water level prior to operation or
an overflow can occur.
◇Turn on the main circuit breaker.
◇Push the “MENU” key to select “STERILIZE & DRY”.
(See P28)
◇Set the temperature and time you desire.
（See P25 and 26）
→The main display blinks the set temperature.
→The sub display blinks the set time.
→Sterilize & Dry menu lamp blinks.
◇Push the “ENTER” key.
Operation begins. The sterilization heater turns on.
The solenoid exhaust valve remains open to exhaust air from
the chamber.
→The main display shows water temperature.
→The sub display goes off.
→Sterilize lamp blinks.
→Sterilize & Dry menu lamp is lit.
After air purge, the solenoid exhaust valve is closed, and
pressurization starts. (Approximately 20-25 minutes)
→The main display shows chamber temperature.
→Sterilize lamp blinks.
→Sterilize & Dry menu lamp is lit.
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Run “MENU”
“STERILIZE & DRY” Procedure
After chamber temperature reaches the set temperature,
sterilization process starts. The sub display shows the
sterilization time.
→The main display shows chamber temperature.
→The sub display shows the remaining sterilization time.
→Sterilize lamp blinks.
→Sterilize & Dry menu lamp is lit.
When the sterilization time is complete. The solenoid drain
valve opens and drains all water and the dry heater turns on.
→The main display shows chamber temperature.
→The sub display blinks
.
→Dry lamp blinks.
→Sterilize & Dry menu lamp is lit.
When forced drainage ends, the solenoid drain valve is
closed. The solenoid exhaust valve opens to exhaust air out
of the chamber.
→The main display shows chamber temperature.
→The sub display blinks
.
→Dry lamp blinks.
→Sterilize & Dry menu lamp is lit.
After the air exhausted out of the chamber the dry heater
raises the chamber temperature.
→The main display shows chamber temperature.
→The sub display goes off.
→Dry lamp is lit.
→Sterilize & Dry menu lamp is lit.
Drying process starts when the chamber temperature
reaches to temperature, which is less than 4 degrees C from
the set temperature.
→The main display shows chamber temperature.
→The sub display shows the remaining time.
→Dry lamp is lit.
→Sterilize & Dry menu lamp is lit.
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Run “MENU”
“STERILIZE & DRY” Procedure
When the drying time is completed, the heater is turned off
and natural cooling starts.
Drain the water bottle after “STERILIZE & DRY” process. The remaining water can cause
hot water to spout out during the next operation.
Since the bottle contains hot water after operation, wait for the water to cool before
draining it.
→The main display shows chamber temperature.
→The sub display blinks
→End lamp is lit.
→Sterilize & Dry menu lamp is lit.
◇Push the “ENTER” key.
The “ENTER” key resets the cycle. You may now run another
cycle.
.
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Special Control Functions
View Parameter during Operation
To check set temperature and time during the operation, push the “MODE” key.
Set points can only be viewed, not changed.
◇Push the “MODE” key.
→The main display blinks
→The sub display shows the set temperature.
→Set lamp is lit.
To check the other set points, push ▽△key to flash the
indication you desire in the main display and view the set
points in the sub display.
To end the function, push the “MODE” key. The display
returns to the original state.
(set Temp).
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Special Control Functions
Interrupt Program during Operation
◇Push the “ENTER” key.
Operation is interrupted. Steam will exhaust when
pressurized.
→The main display shows current chamber temp.
→The sub display blinks
◇Push the “ENTER” key twice to resume
operation.
→The main display blinks the set temperature.
→The sub display blinks the set time.
NOTE:
Always drain the excess water from the chamber after a cycle has been interrupted. Failure to drain
the excess water from the chamber after a cycle interrupt can result in subsequent unsterile loads as a
result of contact with water in the chamber.
Pressure Relief Switch
.
How to use the pressure relief switch
◇Push the Pressure Relief Switch.
By pushing this switch, open the solenoid exhaust
valve opens. Steam inside the chamber is exhausted
into the bottle, decreasing the chamber pressure and
temperature.
Pressure Relief switch
The pressure relief switch can be used only when the solenoid exhaust valve is closed.
Be sure the material will not bump. Be careful not to touch the exhaust areas of the
sterilizer since high pressure steam will exhaust. Bumping or steam spouting due to
sudden pressure decrease could damage the container or cause bodily injury.
Checking chamber temperature during stand-by mode
Push either ▽△keys.
The main display shows temperature inside the chamber. If you release
your finger from the key, the display returns stand-by.
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Troubleshooting Guide
Safety
Self-diagnostic Circuitry
The Yamato sterilizer was designed with self-diagnostic circuitry capable of monitoring operation of
the sterilizer. If a malfunction occurs, the display panel blinks the error code and an alarm is sounded.
The microprocessor disables power to the heater element. If this occurs, check the error code and
immediately shut off the main breaker.
The safety valve is activated if pressure inside the chamber is abnormal. No special alarm is given
when the safety valve is activated. However, a significant amount of steam will spout out of the louvers
or spaces on the exterior. In this situation, there can be some problems such as an air purge or
problems with the temperature controller. Push the “ENTER” key immediately to stop the operation.
Turn off the main breaker after the steam spouting out settles down.
Error Code List
Indication Cause Alarm i n e m e r g e n cy Quick measure Final measure
Sensor-related
trouble
Triac-related
trouble
Heater-related
trouble
Main relay-related
trouble
Run-down of
back-up battery
Heating low water Display and buzzer
Display and buzzer
Display and buzzer
Display and buzzer
Display and buzzer
Display and buzzer
Disconnected heater
circuit
Disconnected heater
circuit
Disconnected heater
circuit
Disconnected heater
circuit
The unit stays stand-by
condition.
Disconnected heater
circuit
Exchange sensor etc.,
Exchange triac
Exchange heater
Exchange relay
Turn on the breaker
and charge the battery
Supply water
In case of power failure
If the main circuit breaker is turned off during operation or main power is temporally interrupted
during operation.
1． The sterilzier will remain in the state it was disabled at. A power failure will result in the
chamber remaining pressurized if it was under pressure at the time of the failure.
2． When power is restored the operation program is lost and the solenoid exhaust valve will
remain closed until the chamber temperature is below boiling point.
Do not open the lid in this situation or hot and high pressure steam will spout out.
If you want to open the lid, use the pressure relief switch to reduce pressure inside the chamber
to “0psi”.
etc.,
etc.,
etc.,
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Problem Solving Chart
Fault Indication Check Points
Troubleshooting Guide
Display does not come up when
the breaker is turned on
Air is not exhausted.
The safety valve is activated.
Water is not drained.
Water is not drained in drying
process.
Sterilization temperature does not
go up.
The pressure does not increase.
The pressure increases when the
solenoid valve is not closed.
The temperature changes during
operation.
Steam spouts rapidly.
Water leaks.
The operation does not start from
stand-by.
Noise during air purge is loud. ・Is the silencer out of place?
・Is the power supply cord connected?
・Is there any power failure?
・Is the voltage of the power source adequate?
・Is the hose to the bottle bent or clogged?
・Is the exhaust clogged by material etc.,?
・Is the filter clogged?
・Is the lid securely closed?
・Is the packing or flange damaged?
・Is the exhaust vent clogged?
・Is there considerable changes of the outside temperature?
・Is there water in the bottle?
・Is the exhaust hose out of place or damaged?
・Is the drain valve securely closed?
・Is there too much water in the bottle?
・Is bottle installed?
◆If you require further technical assistance, please call Yamato Scientific at (800) 292-6286 Ext. 235
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SM200
Wiring Diagram
SM300
◆Inside of dashed line is option
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SM310/510
Wiring Diagram
X1
◆Inside of dashed line is option
Symbol Name of Parts Symbol Name of Parts
Tr Transformer PIO2 Pio2 Board
X Relay POWER2 Power2 Board
CT Current Transformer SW1 Pressure Relief Switch
SSR Solid State Relay SW2 Micro Switch
MCB Circuit Breaker TC Sensor 2 (Thermocouple)
T Terminal PT Sensor 1 (Pt100 resistance thermometer)
MV1 Solenoid Exhaust Valve H1 Heater 1 (Sterilization)
MV2 Solenoid Drain Valve
PLANAR Planar Board
H2〜4
Heater 2 (Drying)
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e
Solenoid Drain Valve (MV2)
Piping Chart
Solenoid Exhaust Valve (MV1)
Chamber
Pressure Gauge
Safety
Valve
Bottle
Silencer
Heater 2
Heater 2
Sensor 2
Drain Valv
Heater 1
Sensor 1
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Maintenance
For maintenance
For maintenance, turn the breaker and power supply off for safety. If the chamber is hot, wait for
it to cool. Wipe off any dirt on the exterior with a damp cloth. Do not use benzene, thinner or
cleanser to wipe, nor scrub with a brush.
Daily Maintenance
Cleaning after liquid loads
Biological media tends to boil at a higher rate compared to other liquids. This can cause media
to be splattered inside the chamber. Therefore, the chamber must be cleaned daily with a damp
cloth after temperature has cooled.
Weekly Maintenance
Cleaning the inside of the chamber
Clean the inside of the chamber with a clean damp cloth. Do not pull the filter out, located in the
bottom center when cleaning the inside of the chamber. If cleaned without the filter inside, the
pipe can get clogged with debris.
Filter cleaning
If the filter in the bottom center of the chamber is
clogged, drainage is prevented. Clean the filter in
appropriate intervals, according to frequency of
use.
Pull the filter out, from the bottom drain port. The
filter may be cleaned under the water faucet.
Cleaning the Door Gasket
The door gasket, located under the lid of the sterilizer can be wiped clean with a clean damp
cloth. The gasket should be examined for cracks or damage that can result in a poor pressure
seal. If replacement is needed, contact Yamato Scientific.
Cleaning the Pipe Heater
The pipe heater should be cleaned twice a month.
Accumulation of scale build up results in poor heat transfer and high sheath temperatures.
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Silencer
Cleaning the silencer
The unit is set up with a silencer at the end of the
exhaust hose to reduce noise occurring from air purge.
Remove the silencer and clean with water once a month.
◆A ball is set in the silencer to prevent back flow of
water. Do not misplace the ball when removing the
silencer.
Maintenance
Monthly Maintenance
Ball
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After Sale Service and Warranty
Request for Repair
When you request repair
If any troubles should occur, stop the operation immediately, turn the breaker off, pull the power cord
out and contact Yamato Sciectific’s Technical Service Department.
Necessary information
●Model Number
●Serial Number
●Date of Purchase
●Distributor Name
●Information on difficulties
To reach Yamato’s Technical Service Department, please call (800) 292-6286 Ext. 235
Warranty
●Keep your warranty card for future references. Check the name of the distributor, date of purchase
and any other contents of the warranty.
●The terms of the warranty is two year limited commencing the date of purchase. Repair is made
without charge according to the contents of warranty.
●Decontamination Statement:
We can not accept any products or parts returned to us for repair or credit that is contaminated with
or has been exposed to potentially infectious agents or radioactive materials.
If you need repair, please call Yamato Scientific at (800) 292-6286 Ext. 221 for a Return
Authorization Number. No product will be accepted without this number.
See the warranty or nameplate on the unit
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Replacement Parts List
Common for all SM series
Part Name Part No. Specifications
Planar Board 1-24-000-0059 ⅣCR
PIO Board 1-24-000-0028 ⅣFR
Power Board 1-24-000-0026 ⅣCR
SSR1 (SM300) 2-16-000-0020 YLT-SSR-01A
SSR2 (SM300) 2-16-000-0021 YLT-SSR-01B
SSR (SM200/310/510) 2-16-000-0010 YLT-SSR-01
CPU 1-18-001-0006
Transformer(Tr1; SM200/300) 2-18-000-0035 AD21-100A 115V
Transformer(Tr2; SM200/300) 2-18-000-0022 AC100V
Transformer(Tr1; SM310/510) 2-18-000-0035 AD21-100A 220V
Transformer(Tr2; SM310/510) 2-18-000-0023 AC200V
Relay (SM200/310/510) 2-05-000-0031 LY2F-DC12V
Relay (SM300) 2-05-000-0019 HEla-DC12V
Relay 2-05-012-0001 JRlaF-TM-DC12V
Stick Keypad SM51A-30490 W467
Current Transformer 2-17-001-0002 URP CTL-6-5-400
Pressure Relief Switch 2-01-001-0014 A2A-4W
Circuit Breaker (SM200/310/510) 2-06-001-0003 BS2021
Circuit Breaker (SM300) 2-06-001-0004 BS2022
Heater 1 (SM200) 2-24-000-0057 AC115V 1.3kw
Heater 1 (SM300) 2-24-000-0058 AC115V 1.7kw
Heater 1 (SM310/510) 2-24-000-0059 AC220V 2.0kw
Heater 2 (SM200) 2-26-000-0003 AC115V 500W
Heater 2 (SM300/310/510) 2-26-000-0004 AC115V 750W
Sensor 1 1-16-003-0035 Pt100 Resistance Thermometer Sensor
Sensor 2 1-16-003-0034 T type Thermometer
Solenoid Exhaust Valve (SM200/300) 3-02-001-0016 AB41-02-7-C4A PT1/4 AC100V CKD
Solenoid Exhaust Valve (SM310/510) 3-02-001-0017 AB41-02-7-C4A PT1/4 AC200V CKD
Solenoid Drain Valve (SM200/300) 3-02-001-0016 AB41-02-7-C4A PT1/4 AC100V CKD
Solenoid Drain Valve (SM310/510) 3-02-001-0017 AB41-02-7-C4A PT1/4 AC200V CKD
Micro Switch 2-02-001-0005 ABV163661
Safety Valve (SM200) 3-18-001-6003 M3D-B1.6±0.2Kgf/cm2
Safety Valve (SM300/310/510) 3-18-001-6002 M3D-B2.0±0.2Kgf/cm2
Plug SM500-30280
Silencer SM500-30340
Lid Gasket (SM200) 241022-180 SH75UN
Lid Gasket (SM300/310/510) 241024-180 SH75UN
Bottom Plate (SM200) SM200-30750
Bottom Plate (SM 300/310/510) SM500-30750
Filter SM500-30700
Drain Valve 3-15-0003-6002 Type BSB PT3/8
Mesh (WG)253003-172-2
Bottle 7-26-000-0006 5000cc
Pressure Gauge 5-05-000-0002 GS58-201
●The solenoid valve is usable for exhaust band drain.
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Responsibility
Please follow the instructions in this document when using this unit. Yamato Scientific has no
responsibility for the accidents or breakdown of device if it is used with a failure to comply.
Never conduct what this document forbids. Unexpected accidents or breakdown may result in.
Note
◆ The contents of this document may be changed in future without notice.
◆ Any books with missing pages or disorderly binding may be replaced.
Instruction Manual for
High Pressure Steam Sterilizer
Model SM200/300/310/510
First Edition Feb. 16, 2006
Yamato Scientific America, Inc.
925 Santa Clara, Walsh Avenue,
TCA 95050, U.S.A
http://www.yamato-usa.com
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