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