EYELA VOS-210C User manual

Instruction Manual
This instruction manual is designed to use the product efficiently and safely with keeping its best performance.
Please keep this manual in a place easily accessible to every user.
IMPORTANT
R01
Vacuum Constant
Temperature
Dryer Vacuum Dry Oven
Tokyo Rikakikai Co., Ltd.
Be sure to read “Safety precautions”
before use.
VOS-210C
VOS-310C

To ensure the safety, this manual defines the
information on such matters as requiring particular
care in the safety as follows in terms of the
importance and risk and attaches the alert mark and
signal word.
It is recommended to follow the instruction to ensure
the safe use of the product.
IMPORTANT SAFETY INFORMATION
1. Warning signal word
The product main body may become partially hot
because of its functions and characteristics
Carless touch to such hot portion during operation
and work may cause unexpected injury.
Most of such troubles, however, can be prevented
if you are well informed about them beforehand.
Alert mark
Signal word Definition
Wrong handling is assumed to cause the possibility of the death
or heavy injury of the user.
Wrong handling is assumed to cause the risk of injury of the
operator or physical damages.
Warning
Caution
Danger of death or severe injury is expected when handled
improperly.
DANGER
We have undertaken thorough verification concerning the possible occurrence of risk in the
course of use of the product, but the prediction of all and every kind of risk is extremely difficult.
Namely, cautions contained in this manual are not necessarily all of possible risks.
However, if the product is operated according to the procedure described in this manual, the
safe operation and work are ensured. Be sure to pay utmost care during handling of the product
to prevent accident or failure of the product.

Risk of explosion
Do not put any
organic solvent and
other explosive
materials in the
chamber..
Risk of ignition
Pay due attention
On the set temperature
During drying of
combustibles.
Risk of burn
① ② ③
Do not touch the side
of the top portion
of the door during
operation.
Danger Waning Caution
For particularly important warning instructions, the
warning label is provided to the product main body.
The labeling position is shown below.
When using the product, be sure to pay due attention
to the description of the warning.
2. Warning Display on the Product
* If damaged and illegible, be sure to change the
warning label to the new one. Send the request
for the new label to us.
①
②
③

Table of contents
Introduction
•This instruction manual explains installation, operation,
troubleshooting, maintenance and inspection, and discarding
procedures for the products below:
•Vacuum constant-temperature dryer
•Vacuum Dry Oven;
•VOS－210C/VOS－310C
Items contained in your packing
Be sure to confirm the type and quantity of parts before setting.
1. For safe operation 1
2. Product Summary
2-1 Intended use 2
2-3 Names of parts 3
3. Names and Function of Operating Part
3-1 Control panel 4
3-5 Safety and alarm functions 9
4.Installation
4-3 Utility connections 13
5. Operation
5-1 Preparation for operation 14
5-1-1 Set shelf plates and connect to the vacuum
pump 146. Causes of Trouble and Countermeasures 39
7. Maintenance and Inspection
7-1 Leak breaker movement test 41
7-2 Cleaning and care of the product 41
8. Disposal of Product 42
9. Post-sale Service 43
4-2 Installation condition 12
2-2 Specification 2
4-1 Installation environment 12
7-3 Consumable Parts 42
Product
Description of Package
1 Main body
2 Shelf plate
3Instruction Manual
4Warranty
VOS-
310C
1
2
1
10.List of Consumable and Replacing Components/Parts
44
210C
1
2
1
3-2 Display part 5
3-3 Constant-value operation and program run 6
3-4 Setting 8
5-5 Vacuum operation method 37
11
5-1-2 Setting sample and container in the chamber
14
5-1-3 Connect power plug 14
5-2 Operating method 15
5-2-1 Set overheat protector 15
5-2-2 Setting, running and stopping constant-value
operation 16
5-2-3 Setting, running and stopping program run 18
5-3-1 How to display alarm screen on the
temperature controller 25
5-4-6 Blackout recovery function 32
Always read this manual before use to ensure
familiarization of the product.
5-3 Alarm function of temperature controller 25
5-3-3 How to set Temp. Alarm 1 Upper/Lower
Limiter 26
5-3-4 How to set Temp. Alarm 2 Temperature
Setting Upper/Lower Alarm 27
5-4 Setting mode operating method 28
5-4-1 How to display setting mode28
5-4-2 PID channel 29
5-4-3 Custom PID 29
5-4-4 How to use Auto-Tuning 30
5-4-5 Measured temperature correction function
31
5-4-7 Optional features 33
5-4-8 Reset setting items 34
5-4-9 Lock operation keys 35
5-4-10 Adjust the display screen contrast 36
5-3-2 Temperature control alarm function 26
5-6 Gas replacing operation method 38
Thank you for purchasing our
product.

For safe operation
1
Pay due attention on the safety. The product may be extremely hot and is not of
an explosion-proof structure.
During operation and for a certain period after operation, the observation window and the top and side of door
become extremely hot. Do not touch these portions to prevent burn.
During operation, take care not to touch the top surface and the
upper portion of door because they become excessively hot.
Pay due attention to the set temperature during
drying of combustibles.
For example, when drying resin-made containers or parts, setting too high
temperature by mistake may cause melting and ignition of these containers and
parts.
Putting excessive amount of sample in the chamber may cause local temperature
rise, possibly resulting in melting and ignition of combustibles.
Do not put any flammable materials, such as
organic solvent, etc., in the chamber.
The chamber interior may become extremely hot during drying, and
flammable materials may be vaporized, resulting in an explosion inside the
chamber.
Explosive materials include nitrate, nitro compounds, etc. while flammable
materials include perchloric acid, inorganic peroxides, nitrites, organic
solvent.
This device is not of an explosive-proof structure.
Danger
Warning
Caution
1
• Observation
window
• Door upper portion
• Side
• Shelf plate
• Top
• Front
• Door packing
●Portions that may become extremely hot

Description of the Product
2
2-1 Application
This is the vacuum constant-temperature dryer that is
used for water removal of various samples and
materials in the depressurized environment and for
drying and testing of various materials and parts in
the oxygen-free condition by filling the interior with
inactive gas.
Drying and testing in the absence of oxygen can be
performed by flowing inactivated gas inside the
chamber.
Never attempt to modify the product.
Operate the unit for the specified
purpose only.
An electric shock or a malfunction may result if
the product is modified or used for any purposes
other than that specified.
WARNING
2-2 Specification
**Observation window: Tempered glass (12 mm thickness)+Polycarbonate protective cover
*Unloaded at room temperature of 20ºC at normal pressure. The time to reach the temperature is the value of the can body
surface temperature in reduced pressure.
Product name
Time to reach
temperature*
Vacuum Constant Temperature Dryer (Vacuum Oven)
±1.5ºC (at 240ºC)
Sheet key input, digital display
Stainless steel plate (SUS 304)
Bourdon tube type (scale 0-0.1MPa)
1.01×105 to 1.33×102Pa (760 to 1Torr)
VOS-210C
355×406×580
7.7A 0.77kVA
About 40kg
0.72kW
160W×160Hmm
2 shelves
192×270×192 (10 L)
Vacuum nozzle outer dia. 22 mm , Purge nozzle outer dia. 22 mm
Model
Accuracy of
temperature control*
Range of level of
vacuum in use
Range of temperature
control
Mode
Temperature controller
Temperature sensor
Temperature
setting/temperature display
Heater capacity
Observation window **
Vacuum gauge
Interior
Internal dimensions
(Width×Depth×Height, mm)
Outer dimensions
Shelf plate load bearing
Number of shelves
Suction port
Power input
Rated power
Weight
Performance Composition Specification/Standard
VOS-310C
505×545×760
12.5A 1.25kVA
About 60kg
1.2kW
250W×250Hmm
2 shelves
300×300×300 (27 L)
40 - 240ºC
AC 100V 50/60Hz
Microcomputer PID control
Pt 100Ω
Can body heating/pressure reduction
About 80 minutes
Uniform distribution MAX.15 kg/shelf / Stainless steel plate
2
(Width×Depth×Height, mm)

3
2-3 Names of parts
Left side of the system
Vacuum nozzle
(Outer dia. 22mm)
Purge nozzle
(Outer dia. 22mm)
Observation window
Vacuum valve
Vacuum gauge
Door
Handle
Shelf plate support
Shelf plate
Leak breaker
Overheat protector
Door switch
Power switch
Control panel
Purge valve
Door packing
Power cord
*VOS-210C
does not have this step.

4
3-1 Control panel
3 Names and function of operating parts
Temperature, time, set character and alarm detail are displayed.
Control starts/stops.
Run/Stop Key
This switches a measured value to a set value and undertakes selection and confirmation of
a set item.When the alarm is output, the alarm display is cleared.
Set key
Various control modes/set items are displayed.
Additionally, this key is used to return to the main screen from each subscreen.
Menu key
Indicator
This is turned on or off in connection with start/stop of temperature control.
Run/Stop LED
⑧
⑦
④
③
②
①
It is lit at alarm output.Alarm LED
FunctionNameNo.
This is valid only when the setting is displayed. If a set value is numeric, every push reduces
one and holding it down makes serial reductions.
If character setting is effective, the character is switched.
This is valid only when the setting is displayed. Every push of a set value will add one value
and holding down the value will make serial values.
If character setting is effective, the character is switched.
▼key
▲key
⑥
⑤
②
⑨
③
⑦
⑤
⑥④ ⑧①
Contrast adjusting
part
⑨This key adjusts contrast. Insert a plus driver into the hole, turn the inner knob either left
or right to adjust to the position of giving good visibility of the display screen.
Panel key

5
3-2 Display part (Main screen)
The keys lock status is displayed.
A set temperature is displayed.
A temperature measured currently is displayed.
The current control status and alarm are displayed.
The elapsed time is displayed while the timer is in operation during temperature control.
An icon is displayed according to the setting of the buzzer.
Keys lock status display
Set temperature
Measured temperature
Status display
Time display
Buzzer icon
An icon is displayed in relation to each alarm.
Alarm icon
⑥
⑧
⑦
⑤
④
③
②
①This is lit during output of the heater.Heater/temp. controller state
display
FunctionNameNo.
①
②③
④
⑤
⑥
⑦
⑧
⑨
⑩
Measured temperature
correcting function "+" is displayed when the measured temperature correcting function is set to be effective.
⑨⑩
Loop display During the two-step operation, the loop number is displayed.
* This is reference for an explanation and is not different from the actual display screen.

6
3-3 Constant-value operation and program run
Constant-value operation can be combined
with program run according to a purpose of use.
Setting is input on the control panel.
The set temperature, time and program run
can be discontinued on the half way of an operation round.
For detailed setting methods, see Setting, Operation and Stop of
Constant-value Operation on page 16
and Setting, Operation and Stop of program run on page 18.
Constant-value operation
Time
Temperature
When a certain temperature is set and operation starts,
continuous operation is run at the set temperature.
Operation starts or stops with [Run/Stop] key.
(1) Auto Start
Set time and start operation:
temperature control starts after the set time goes by.
This can be used in combination with respective controls of Auto Stop,
1 Step and 2 Step.
• AUTO START + AUTO STOP
• AUTO START + 1STEP
• AUTO START + 2STEP
(2) Auto Stop
Set time and start operation:
operation will be performed for the set time. The controls automatically
stop when the time has gone by.
It can be used in combination with Auto Start.
You can choose either
t1 or t2 for setting timer count time.
t1: The system runs for the set time once the measured value reaches
the set temperature.
t2: Press RUN/STOP key and the system runs for the set time.
Program run
Time setting on the timer can run/stop constant-value operation.
Four types of program run are available, including Auto Start, Auto Stop,
1 Step and 2 Step.
*Range of timer time settings
0 hours and 00 minute to 99 hours and 59 minutes59minutes
* When program run is effective,
t
Time
Temperature
t1
Time
Temperature
Set temperature
Set temperature
✔mark display
Set temperature

(3) 1Step
Set 2 temperatures and 1 time.
After the first set temperature is reached, the set time t
goes by and then constant-value operation continues after
moving to the second set temperature.
t
Time
Temperature
Set temperature
T1
Set
temperature
T2
(4) 2 Step
Set 2 temperatures and 2 times and set the number of loops.
Once the temperature control starts, temperature is controlled
at the set temperature T1 for t1 time.
After that, the temperature control is done at the set
temperature T2 until t2 time goes by.
This movement is repeated for the set number of loops before
the temperature control stops.
t1
Time
Temperature
Set temperature
T2
Set temperature
T1
t2 t1 t2
Repeated
operation
7

8
3-4 Setting modes
Various values and optional features can be set.
*To change the value in the set mode, do so in the state of temperature control stopped.
(1) PID channel setting
At shipment from the plant, a proper PID value is set to Default within the range of temperature control.
If the default PID does not provide good temperature control, temperature can be controlled at an optionally input PID
value or at an Auto-tuned value.
To activate an optionally input PID or Auto-tuned value, select Custom.
(2) Set Custom PID
Temperature can be controlled at an optionally input PID.
To reflect the input value on control, it is necessary to choose Custom on PID channel setting.
(3) Setting Auto-Tuning
If the default PID does not provide good temperature control, the PID may be calculated automatically at the target
temperature.
*Ineffective at factory shipment
Depending on the condition, an optimum value may not be obtained.
Execution of Auto-Tuning automatically selects Custom in PID Channel Setting.
Auto-tuned PID is reflected on Custom PID.
(4) Temperature correction
A measured value can be corrected.
*Ineffective at factory shipment
Range of correction: -50.0 - +50.0ºC (Resolution0.1ºC)
(5) Blackout recovery function setting
* Effective at factory shipment.
Movement at the time of blackout recovery can be set.
• When this is set to be effective (at factory shipment)
When power is recovered, the movement shortly before blackout continues.
• When this is set to be ineffective
When power is recovered, temperature control stops.
(6) Optional feature setting
• Buzzer
Buzzer ON/OFF can be set.
* On at factory shipment.
• Display
Display colors on the screen can be reversed.
* Set to Normal at factory shipment.
(7) Reset set values
• Return to factory shipment status.
Various set values will be reset.

9
3-5 Safety and alarm functions
This product is equipped with the following safety and alarm functions.
When abnormality occurs, take appropriate measures with reference to 6. Causes of Trouble and
Countermeasures.
Safety functions
Alarm functions
Temperature
sensor
Failure alarm
Alarm code
F-1
Alarm sounds
and control stops
The temperature sensor was
disconnected or shorted.
The control part was out of order.
Not released unless the malfunction is
resolved and power is reset.
Stop operation and contact the
company where you purchased the
product or the nearby service center.
Cause of alarm movement and countermeasures
Alarm display and movement
Names of alarms
Heater
disconnection
Alarm
Alarm code
F-0 Alarm sounds
and control stops
The heater was disconnected.
SSR went wrong in an OFF state.
Not released unless the malfunction
is resolved and power is reset.
Stop operation and contact the
company where you purchased the
product
or the nearby service center.
SSR's ON
destruction
Alarm code
F-6
Alarm sounds
and control stops
Safety functions run
to disconnect energy to the heater.
SSR went wrong in an ON state.
Not released unless the malfunction
is resolved and power is reset.
Stop operation and contact the
company where you purchased the
product
or the nearby service center.
Alarm
Alarm
Alarm
Safety mechanism Movement Cause of movement
Leak breaker Turned off and power disconnected. • Electricity leaks or overcurrent flows.
Overheat protector When the temperature inside the chamber
goes up more than the set temperature of
the overheat protector, power is
disconnected.
*When it returns to a temperature below the
setting, recovery is done according to the
blackout recovery function.
• The set temperature of the overheat protector is low.
• The temperature controller and/or SSR were out of order
and the temperature inside the chamber
went up more than the set temperature of the overheat
protector.

Cause of alarm movement and countermeasures
Alarm display and movement
Names of alarms
Measured
temperature upper
limit alarm
Alarm code
HHH Alarm sounds
and control stops
Measured
temperature lower
limit alarm
Alarm code
LLL Alarm sounds
and control stops
Upper limiter
Alarm code
A-0(１H)
Alarm sounds
and control stops
Lower limiter
Alarm code
A-0 (1L)
Alarm sounds
and control stops
Alarm
Alarm
Alarm
Alarm
The temperature exceeded the measurable
temperature.
*Range of measured temperatures: -50.0 -
320.0℃
If there is any cause of heat inside the device,
remove it when the temperature goes down to
a safe level.
If returned to the range of measurable
temperatures, it can be released with "Set "
key.
Stop the operation and contact the company
where you purchased the product or the
nearby service center.
The temperature went below the measurable
range.
*Range of measured temperatures: -50.0 -
320.0℃
If there is any cause of cooling, remove it
when the temperature goes up to a safe level.
If returned to the range of measurable
temperatures, it can be released with "Set "
key.
If clearly different from the actual temperature,
stop the operation and contact the company
where you purchased the product or the
nearby service center.
The measured temperature exceeded the
upper limit temperature.
If the upper limit setting was wrong in relation
to the target controlled temperature, change
the upper limit set value to a higher value.
If abnormally heated, check inside the
chamber.
If returned below the upper limit, it can be
released with "Set" key.
If the cause is unknown, contact the company
where you purchased the product or the
nearby service center.
The measured temperature went below the
lower limit.
If the lower limit setting is wrong in relation to
the target controlled temperature, change the
lower limit value to a lower value.
If returned above the lower limit, it can be
released with "Set" key.
If the temperature is abnormally lowered,
check inside the chamber.
If the cause is unknown, contact the company
where you purchased the product or the
nearby service center.
10

11
Door alarm
Alarm code
A-2
Alarm sounds
and control stops
(In case of WFT, the fan
will also stop)
The door was open during control.
The alarm is released and operation
resumed if the door is closed.
The heater, if the door is kept open, is
prevented from heating to overheat sample
etc. (In the event of WFO, the fan will stop to
prevent hot air from blasting out)
In case of alarm when the door is firmly
closed, stop the operation and contact the
company where you purchased the product
or the nearby service center.
Watchdog Control is reset without
display of specific alarm.
The temperature controller is in an abnormal
state due to noise etc. If there is any source of
noise, distance it from the system.
The ambient temperature exceeds 35ºC. Stop
the operation and start operation when the
ambient temperature goes down.
If the cause is unknown, stop the operation and
contact the company where you purchased the
product or the nearby service center.
Upper limit of set
temperature
Alarm
Alarm code
A-0 (2H) Alarm sounds
Control continues.
After the set temperature (SV) was reached,
the measured temperature exceeded the set
temperature as the upper limit of SV.
Released with "Set" key.
Depending on the conditions, overshoot of
about 10ºC may occur: so please check
before setting.
When PID is not appropriate, temperatures
may move up and down greatly: either set a
PID constant or perform auto-tuning.
Lower limit of set
temperature
Alarm
Alarm code
A-0 (2L) Alarm sounds
Control continues.
Cause of alarm movement and countermeasures
Alarm display and movement
Names of alarms
Alarm
Alarm
Alarm
After reaching the test temperature (SV), a
measured temperature went below the
temperature set as the lower limit against SV.
Released with "Set" key.
When PID is not appropriate, temperatures
may move up and down greatly: either set a
PID constant or perform auto-tuning.
Alarm sounds
Continuation or stop of control
depends on the selection of the blackout
recovery function.
Alarm
Operation either continues or stops
depending on the movement chosen in the
blackout recovery function.
Released with "Set" key.
Since this may occur depending on the
setting of the overheat protector, check
whether a value higher than the target set
temperature by 20ºC has been set. If the
overheat protector works at an optimum
value, check whether too many articles are
placed in the chamber or anything covers the
bottom plate.
Power off
Alarm
Alarm code
A-4
*Alternative display
with the mode
before blackout

Select the installation site that meets the following conditions.
Installation
4
●Place free of flammable gas, liquid, or solid
materials in the vicinity of the product
●Place where the ambient temperature can be kept
within a range of 5 ~ 34℃.
●Place free from condensation
●Place with less humidity and free from splashing
water
●Place with minimum dust
●Place free from direct sunshine
●Place where airy or well-ventilated
●Level, stable, and firm place
(Check the product weight during operation.)
VOS-210C (about 40kg),
VOS-310C (about 60kg)
This is a heavy product. Take utmost
care during transport.
Do not install the product in a hazardous
environment.
This product incorporates a heater. The use of the
product in a hazardous environment, the fire may occur.
Warning
Poor installation environment may accelerate
deterioration of the product or may result in failure of
demonstrating the functions and performance fully.
Select the location with care.
Caution
Do not place anything other than
our specified object on top of the
main body.
Caution
Caution
12
60㎝
20㎝20㎝
4-1 Installation environment
4-2 Installation conditions
Be sure to assure space between the unit and the
walls and the ceiling as shown in the figure to maintain
the performance of the product.
Assure certain space around the unit.
CAUTION

4-3 Connecting utilities
Wrong connection of power supply may cause fire or
electric shock
Confirm the voltage, phase, capacity,
and the type of receptacle of power
supply.
Burn-out of the cable or a fire may result from over
current.
Do not use the branching socket or
table tap.
Warning
Warning
Check the
connection state
Connect to the
earth
* An earthing adaptor is not attached.
When an outlet with an earth terminal is used
3-pole outlet Power plug (3-pole)
When an outlet with an earth terminal is used
2-pole outlet Earth adaptor Power plug (3-pole)
* The earth adaptor is not included.
Model Power supply to connect
Voltage Capacity
VOS-210C AC 100V 15A
VOS-310C
Warning
When connection to the “outlet without earth terminal” is
inevitable, be sure to connect the earth wire of the earth
adaptor to the ground, Otherwise, leakage cannot be detected
correctly, resulting in leakage or electric shock.
Pay attention to the connection state of the earth adaptor and
power plug. Inclined or insufficient insertion may cause
overheat or fire.
Always connect to the outlet with earth
terminal.
13
Length Thickness
(O.D) Power plug Section area of electric wire
2.9ｍApprox.
9mm Earth terminal with 3-pole 2mm2
Power cord specification
(1) Check the product type as well as the
voltage, phase, and capacity of power
supply to be connected.
Power supply to be connected to the product
is as shown in the right.
(2) Check the receptacle of installation place.
(Do not connect the power plug yet.)
You can connect the power plug to an outlet
with an earth terminal as it is.
* Temporary set up
When you use an outlet without an earth
terminal, set an earth adaptor to the power
plug and be sure to connect the earth wire of
the adapter to the earth terminal.
* The earth adaptor is not included.
When no earth terminal is available, consult
your electrical technician and make earth
work of Class D earth work.
* We recommend replacing with an outlet
with an earth terminal.

For example, when drying resin-made containers or parts,
setting too high temperature by mistake may cause melting
and ignition of these containers and parts.
Putting excessive amount of sample in the chamber may
cause local temperature rise, possibly resulting in melting
and ignition of combustibles.
Pay due attention to the set temperature
during drying of combustibles.
5-1 Preparation
5-1-1. Setting the shelf plate and connecting with the vacuum pump
(1) Set the shelf plate.
(2) Connect the vacuum pump with this device using a
vacuum hose. (A vacuum hose is not attached.)
Connect the vacuum nozzle (outside dia. Φ22) on the left
side of main body with the suction port of
the vacuum pump firmly enough to prevent air leakage.
5-1-2. Setting the sample and container in the chamber
(1) Drain water thoroughly from the sample and container.
(3) Place and align samples evenly on the shelf plate.
(The load capacity per shelf plate is 15kg.)
(4) Close the door gently.
Push down the handle lever and return it to the
original position.
The door glass contacts tightly with the packing.
* The operation cannot be started unless the door is firmly
closed. (Door alarm is activated.)
(2) Open the door.
Pull up the handle lever toward you, and then pull it
further up till it becomes level. The door is unlocked
and can be opened.
Do not put any flammable materials, such
as organic solvent, etc., in the
chamber.
Operation5
The chamber interior may become extremely hot during
drying, and flammable materials may be vaporized, resulting
in explosion inside the chamber.
Explosive materials include nitrate, nitro compounds, etc.
while flammable materials include perchloric acid, inorganic
peroxides, nitrites, organic solvent.
This device is not of an explosive-proof structure.
Main body left side
Purge nozzle Vacuum nozzle
(Outside dia. 22mm)
5-1-3. Connecting the power plug
Confirm that the earth leakage breaker and the power
switch are OFF, insert the power plug into the outlet.
Danger Warning
14
Shelf plate
①Pull up the lever
toward you.
②Pull up it further till it
becomes level.
Evenly

5-2-1.Setting the overheat protector
(1) Turn on the leak breaker.
(2) Set the over-temperature preventive device.
Turn the knob till the set temperature agrees with the base point
position. Normally set to the temperature about 20℃higher
than the temperature set with the panel key.
5-2 Operating method
The observation window and upper and side parts of the
door are at high temperatures during use and for a while
after use.
Touching any part of them may lead to burn.
Do not touch the hot parts
during use and for a while after use. Turn off the power switch and leak breaker (power switch)
immediately if abnormality occurs and see the section
Causes of Trouble and Countermeasures.
Stop using it if abnormality occurs.
*Remove the cause led to the movement
with reference to the section Causes of Trouble
and Countermeasures and press the reset switch.
Caution Caution
15
Power switch
Indicator
Leak
breaker
Overheat
protector
Purge valve
Vacuum valve
Provide ventilation well because a member such as
insulating materials may volatilize and generate
characteristic odor for a short time when the system runs
for the first time.
Ventilate immediately if odor is smelt.
Caution
Base point
Resetswitch
Knob
Over-temperature preventive device

16
Turn on the leak breaker.
The main screen displays after 5 seconds of the initial screen.
*The mode is shown on the upper part and a version number on
the lower ver.
5-2-2. Setting, running and stopping constant-value
operation
(1)Temperature setting
The set temperature can be changed irrespective of during control or
during stop.
1) Press [Set] key.
The display changes to the set temperature (blinking) allowing
you to set temperature.
* The set temperature is the one previously used. At factory
shipment, this is set to 40ºC.
2) Operate [▲] and/or [▼] keys and input the set temperature.
* One push of [▲] or [▼] key changes the temperature by
0.1ºC each. Holding it down continuously change the value.
3) Press [Set] key.
The set temperature displayed (blinking) is confirmed and switch
to the display of measured temperature.
The set temperature (SV) is displayed in the lower right of the
screen.
* While setting a temperature, no key operation for 30 seconds
or longer will return to the display of measured value.
In this case, start 1) all over again to set the value.
Run
Stop
Menu Set
Alarm
Run/Stop
Run
Stop
Menu Set
Alarm
Run/Stop
Model Version No. display