Yamato DVS402/602 Constant Temperature Drying Oven Operating instructions
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Constant Temperature
Drying Oven
Model DVS402
DVS602
First edition
● Thank you very much for purchasing this Yamato
DVS series constant temperature drying oven.
● Please read the “Operating Instructions” and
“Warranty” before operating this unit to assure proper operation. After reading these documents, be sure to store them securely together with the
“Warranty” at a handy place for future reference.
Warning!
Before operating the unit, be sure to read carefully and fully understand important warnings in the operating instructions.
Yamato Scientific Co., Ltd.
Table of contents
1. Safety precautions ........................................................................................................................1
Explanation of pictograms ...............................................................................................................1
List of symbols.................................................................................................................................2
Warning・Cautions .........................................................................................................................3
2. Before operating the unit ..............................................................................................................4
Precautions when installing the unit ................................................................................................4
3. Names and functions of parts ......................................................................................................9
Main body........................................................................................................................................9
Operation panel .............................................................................................................................10
Explanation of characters .............................................................................................................. 11
4. Operating procedures .................................................................................................................13
List of operation modes and functions ...........................................................................................13
Operation mode・function setting keys and characters ................................................................15
Settings for overheat prevention device ........................................................................................16
Operating procedures (fixed temperature operation).....................................................................17
Operating procedures (quick auto stop operation) ........................................................................18
Operating procedures (auto stop operation)..................................................................................19
Operating procedures (auto start operation)..................................................................................21
Preparing a program......................................................................................................................23
Program repeat operation..............................................................................................................28
Programming sheet .......................................................................................................................29
Useful functions (calibration offset function) ..................................................................................31
Useful function (lock function) .......................................................................................................32
5. Cautions on handling ..................................................................................................................33
6. Maintenance procedures ............................................................................................................35
Daily inspection/maintenance........................................................................................................35
7. When the unit is not to be used for a long time or when disposing .......................................36
When the unit is not to be used for a long time or when disposing................................................36
Notes about disposition .................................................................................................................36
8. Troubleshooting ..........................................................................................................................37
Safety device and error codes.......................................................................................................37
When a malfunction is suspected..................................................................................................38
9. After sales service and warranty................................................................................................39
When requesting a repair ..............................................................................................................39
10. Specifications ............................................................................................................................40
11. Wiring diagram...........................................................................................................................41
12. List of replacement parts ..........................................................................................................42
13. List of dangerous materials......................................................................................................43
14. Standard installation manual ....................................................................................................44
1. Safety precautions
Explanation of pictograms
About pictograms
A variety of pictograms are indicated in this operating instruction and on products to assure safe operation. Possible results from improper operation ignoring them are classified as follows.
Be sure to fully understand the descriptions below before proceeding to the text.
Warning
Caution
Indicates a situation which may result in death or serious injury
(Note 1)
Indicates a situation which may result in minor injury (Note 2) and property damage (Note 3).
(Note 1) Serious injury means a wound, an electrical shock, a bone fracture or intoxication that may leave after effects or require hospitalization or outpatient visits for a long time. hospitalization or outpatient visits for a long time.
(Note 3) Property damage means damage to facilities, devices and buildings or other properties.
Meanings of pictograms
This pictogram indicates a matter that encourages the user to adhere to warning (“caution” included).
Specific description of warning is indicated near this pictogram.
This pictogram indicates prohibitions
Specific prohibition is indicated near this pictogram.
This pictogram indicates matters that the user must perform.
Specific instruction is indicated near this pictogram.
1
1. Safety precautions
List of symbols
Warning
General warnings
Caution
Danger!:
High voltage
Danger!:
High temperature
Danger!:
Moving part
Danger!:Hazard of explosion
General cautions Electrical shock!
Poisonous material
Burning!
Caution for no liquid heating!
Caution for water leak!
Prohibitions
For water only
General bans
Compulsions
Fire ban
Do not disassemble
Do not touch
General compulsions
Connect ground wire
Install levelly
Pull out the power plug
Regular inspection
2
1. Safety precautions
Warning・Cautions
Warning
Never operate the unit in an atmosphere containing flammable or explosive gas
Never operate the unit in an atmosphere containing flammable or explosive gas.
Otherwise, an explosion or a fire may result since the unit is not explosion-proof.
See section “13. List of dangerous materials” on page 43.
Be sure to connect the ground wire.
Be sure to connect the ground wire correctly. Otherwise, electrical leak may result and cause an electrical shock or a fire.
Ban on operation when an abnormality occurs
When a smoke or a unusual odor is seen or sensed, immediately turn the power switch on the main unit off and pull out the power cord (plug) from the power supply. A fire or an electrical shock may result.
Never use electrical power cords bundled.
When these are used bundled, they might overheat causing a fire.
Take care not to damage electrical power cords.
Avoid tightly bend, pull with a strong force or twist to prevent electrical power cords from damaging. A fire or an electrical shock may result.
Never use an explosive or a flammable material with this unit.
Never use an explosive material, a flammable material or a material containing them. An explosion or an electrical shock may result.
See section “13. List of dangerous materials” on page 43.
Never try to touch a hot part.
Some parts of the unit are hot during and immediately after operation. Take special care for possible burning.
Never try to disassemble or alter the unit.
Never try to disassemble or alter the unit. A malfunction, a fire or an electrical shock may result.
Caution
When a thunder is heard.
When a thunder is heard, turn the main power off immediately. A malfunction, fire or an electrical shock may result.
3
2. Before operating the unit
Precautions when installing the unit
Warning
1. Be sure to connect the ground wire.
・ Power supply for this product is 100V AC.
・ Be sure to connect the ground wire (green core wire of the power cord) to the ground wire or the ground terminal in order to prevent an electrical shock from electric leakage.
・ Never connect the ground wire to gas or water pipes. Otherwise, a fire may result.
・ Never connect the ground wire to the ground for telephone wire or lightning conductor.
Otherwise, a fire or an electrical shock may result.
・ Do not use a branching receptacle, which may generate heat and possible danger.
We recommend use of a ground type outlet tap.
Grounded tap
Power plug
When a bipolar type outlet tap is used
Bipolar outlet tap
Ground wire
When there is no ground terminal.
●In this case, class 3 grounding work is necessary and please consult your dealer or our nearest sales office.
●Insert the ground adaptor included as an option, into a power plug confirming the polarity of the outlet. Connect the grounding wire (green) of the ground adaptor to the ground terminal on the power supply equipment.
2. Carefully select an installation site.
Take special care not to install the unit at a place described below:
・ On uneven or dirty floor
・ Where combustible gas or corrosive gas exists
・ Where the ambient temperature is 35℃ or more
・ Where temperature widely fluctuates
・ Where there is excessive dust or humidity
・ Where subject to direct sunlight
・ Where vibration is severe
Install this unit at a place with spaces shown below.
Do not cover the exhaust ports on the top of the unit.
15 cm or more
15 cm or more
15 cm or more
1m or more
Front
4
2. Before operating the unit
Precautions when installing the unit
Warning
3. Never operate the unit in an atmosphere containing explosive or flammable gas
Never operate the unit in an atmosphere containing flammable or explosive gas. Since the unit is not explosion-proof, an arc is discharged when turning a switch “ON” and “OFF” and during operation and a fire or an explosion may result.
See the section “13. List of dangerous materials” on page 43 for flammable and explosive gases.
Explosive gas
Combustible gas
Never use the unit with an explosive material, a flammable material or a material containing them. An explosion or a fire may result.
See the section “13. List of dangerous materials” on page 43 for flammable and explosive substances.
Explosive substance
Combustible substance
5
2. Before operating the unit
Precautions when installing the unit
Warning
4. Do not alter the product.
5. Install the unit on a level surface
The user shall never attempt to alter the unit since it may cause a malfunction.
Flat
Install the unit on a level surface.
Installing this unit on a slope might cause unexpected troubles or malfunctions.
Alteration
6. Do not overload shelves.
Withstand load of each shelf board is
15kg in uniform loading. Place samples in a dispersed fashion.
7. Do not place too many samples.
Too many samples may prevent proper temperature control. Be sure to use shelf boards and place samples apart each other so as to make free space of
30% or more to assure proper temperature accuracy.
Sample
15 kg
Shelf board
Make at least 30% of space
6
2. Before operating the unit
Precautions when installing the unit
Caution
8. Be sure to connect the power plug to the dedicated wall outlet.
Use a power distribution panel or a wall outlet that meets the electrical capacity of the unit.
Electric capacity: DVS602 AC100V 14A
When the unit will not start even when you turn the power switch to “ON”, check for low main voltage or if the unit is connected to the same power supply line as other devices and connect it to another line if necessary.
9. Installation
The unit might fall down or move by an earthquake or an impact resulting a personal injury.
We recommend making safety measures such as to avoid installing the unit at a place other than busy places.
Also, take appropriate safety measures to prevent the unit from tripping over.
10. Placing shelf boards and samples
Two shelf boards are included with this product.
One of them has been fixed on the lowest stage of the shelf pillar of the internal bath at the time of shipping from the factory.
Set another board to an appropriate position in the bath.
A heater is installed under the flow adjusting board. Thus, the temperature of the flow adjusting board and around it is always higher than the set temperature and placing a sample directly on the board may damage it or cause a fire.
Therefore, the shelf board is fixed with screws as shown to disable direct placement of samples.
Because of the shape of samples, when the unit is operated with shelf boards removed to accept them, assure sufficient space between them and the flow adjusting board and never place samples directly on the flow adjusting board.
Shelf pillar
Clamp
Flow adjusting board
Shelf board
Screw
Screw
7
2. Before operating the unit
Precautions when installing the unit
Caution
11. About handling of the power cord
Never use electrical power cords bundled. When these are used bundled, they might overheat causing a fire.
Do not convert, forcibly bend, twist or pull the power cord. Otherwise, a fire or an electrical shock may result.
Do not place the power cord under a desk or a chair, or sand between objects to avoid it from being damaged.
Do not place the power cord close to a stove or other heat generating device. Sheath of the cord may burn and result in a fire or an electrical shock.
If the power cord should be damaged (exposure of core wire or disconnection), immediately turn the main unit off, pull out the power cord (plug) out of the power supply and ask your dealer to replace the cord. Otherwise, a fire or an electrical shock may result.
Connect the power cord to an appropriate wall outlet.
12. When you operate the unit for the first time
When you operate the unit for the first time at a higher temperature, the unit may generate an odor. This is due to decomposed bonding material contained in heat-insulation material and is not a malfunction of the unit. We recommend operating the unit at the highest temperature once before starting its regular operation.
8
Front view
Door
Handle
Rear panel
3. Names and functions of parts
Main body
Observation window
Cable hole
Exhaust port
Rating sticker
Control panel
Main switch
(Earth leakage breaker)
Power cord
9
3. Names and functions of parts
Operation panel
⑧
⑨
⑩
⑪
⑫
⑬
③
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
℃
STOP
⑭
⑮
⑯
①
②
FIXED
TEMP.
TIMER
PROGRAM
SUB
MENU
⑦
No.
①
②
③ ENTER key
④ FIXED TEMP. key
⑤
⑥
⑦
⑧
④
Name
RUN/STOP key
▲▼ keys
TIMER key
PROGRAM key
SUB MENU key
HEATER lamp
⑨ ALARM lamp
⑩ AUTO STOP lamp
⑪ AUTO START lamp
⑫ FIXED TEMP. lamp
⑬ PROGRAM lamp
⑭ MEASURED TEMP. display
⑮ SET TEMP. display
⑯ OVER TEMP.
PROTECTOR display
⑤ ⑥
Operation/action
Used for starting/stopping operation
Used for selecting settings.
Used for determining a selected setting.
Key for selecting fixed temperature operation.
Key for selecting timer operation.
Quick auto stop operation, auto stop operation or auto start operation can be selected.
Used for selecting programming and starting the program operation.
Programs of six patterns in three types can be set.
Key for setting temperature of the overheat prevention device, calibration offset temperature, the key lock function or the program repeat function.
Illuminates while heater power is on.
When an error occurs, the lamp illuminates with an audible buzzer.
Flashes while the quick auto stop timer is being set and illuminates while the unit is in operation.
Flashes while the auto stop timer is being set and illuminates while the unit is in operation.
Flashes while the auto start timer is being set and illuminates while the unit is in operation.
Flashes while fixed temperature operation is being set and illuminates while the unit is in operation.
Flashes while the program operation is being set and illuminates while the unit is in operation.
Displays measured temperature in the bath・set characters・alarm information.
Displays a set temperature, timer settings and timer remaining time.
Displays the set temperature for the overheat prevention device.
10
3. Names and functions of parts
Explanation of characters
Characters on the VS4 type controller are explained in this section.
Characters Identifier Name Application
Fixed temperature operation setting
Means settings for fixed temperature operation.
Fix
Sv Temperature setting Used for setting a temperature.
AStP Auto stop setting Used for setting auto stop operation.
AStr Auto start setting Used for setting auto start operation. tim Time setting Used for setting a time.
PrG3
PAt
End
Sv-1 t-1
PS-3
Pc-2
Program type select
Program pattern select
Time up
Program temperature setting
Program time setting
Program repeat
Selecting a return destination
Setting number of program repetitions
Used for selecting a program type 1,
2 or 3 to be used.
See section “Preparing a program on page 23.
Used for selecting a program pattern to be used.
See section “Preparing a program on page 23.
Displayed when timer operation has ended.
See page 18, 19, and 21.
Used for setting temperatures for each step of a program.
(Sv-1 to Sv-30 are displayed.)
Used for setting time for each step of a program.
(t-1 to t-30 are displayed.)
Used for selecting a step for returning during program repeat operation.
See section “Program repeat operation” on page 28.
Used for setting number of program repeat operations.
See section “Program repeat operation” on page 28.
11
3. Names and functions of parts
Explanation of characters
Characters Identifier cAL oH
Name
Calibration offset setting
Setting overheat protection device temperature
Application
Used for inputting a calibration offset temperature
See section “Using the calibration offset function” on page 31.
Used for setting an overheat protection device temperature.
See section “ Settings for overheat prevention device” on page 16.
Lock Key lock of settings
Key locks settings to prevent their alteration
See section ”Using the lock function” on page 32.
.
* See the section “Operation mode・function setting keys and characters” on page 15 for characters of operation modes and functions
12
Operation modes of the unit are as shown below:
№ Name
4. Operating procedures
List of operation modes and functions
Description Page
1
2
3
4
Fixed temperature operation
Quick auto stop operation
Auto stop operation
Auto start operation temperature operation setting mode.
Pressing the FIXED key again to enter the temperature setting mode.
Set a temperature with the ▼▲ keys.
P.17
Pressing the RUN/STOP key to start operation, and pressing the RUN/STOP key again to stop operation.
Used when you want to, for example, “stop operation being performed automatically in several hours.
Pressing the TIMER key during the fixed temperature operation to enable setting a time before operation stops.
Set a duration before stop with the ▼▲ keys.
Pressing the RUN/STOP key starts quick auto stop operation and activates the timer in the middle of it to automatically stop it after the set period of time.
P.18
Used when you want to “set automatic stop for fixed temperature operation when making settings for it.”
Press the TIMER key to display “AStP.”
Pressing the ENTER key to set the temperature setting “Sv.”
Pressing the ENTER key again to enable setting of the operation time “tim.”
Pressing the RUN/STOP key starts auto stop operation.
P.19
Used when you want to “start operation automatically after several hours” after power is turned on.
Press the TIMER key to display “AStr.”
Pressing the ENTER key to set the temperature setting “Sv.”
Pressing the ENTER key again to enable setting of the operation time “tim.”
Pressing the RUN/STOP key starts auto start operation.
P.21
This is used to raise or lower temperature based on the set temperature and time.
Press the PROGRAM key to display “PrGn.” (n:1,2,3)
Press the PROGRAM key again to select a program mode you want.
To select “PrG2” or “PrG3”, press the ENTER key to select a pattern “PAt” you want.
Pressing the RUN/STOP key starts program operation.
P.23
* Operation mode cannot be changed while the unit is in operation. First stop operation before changing the mode.
13
Operating functions of the unit are as shown below:
№ Name
4. Operating procedures
List of operation modes and functions
Description Page
1
2
3
4
Overheat prevention function
Calibration offset function
Overheat prevention temperature compensation function
Power outage compensation function
Automatic overheat prevention function:
This function is linked to the unit set temperature and has been set to so that it is automatically activated
(returned automatically) at a temperature 12℃ higher than the set temperature in the bath.
Overheat prevention device:
Although the power supply, the display and the key input assembly are in common with the controller, the device consists of the standalone temperature measurement circuit, the CPU, the sensor, and the output circuit enabling to set to a temperature you want on the operation panel.
If the overheat prevention device is triggered, the unit will stop and will not recover until the power switch is turned on again. (Manual recovery)
P.16
Calibration offset function compensates any differences between the target temperature in the bath and the control temperature of the controller (sensor temperature.)
The function can compensate to either plus or minus side for the whole temperature band of the unit.
P.31
When temperature compensation in item two is made for the controller, temperature to be input to the overheat prevention device will also be compensated automatically.
−
When power outage occurs in the middle of operation, the operation resumes from the status immediately before the power outage.
−
5 Setting lock function
This function locks the set operation status.
The lock can be set or released with the SUB MENU key.
P.32
14
4. Operating procedures
Operation mode・function setting keys and characters
Key operations and characters in the diagram below are used for operation mode and function settings.
ELB ON
FIXED
TEMP
Fixed temp.
operation
TIMER
Timer operation
PRO-
GRAM
Programming
SUB
MENU
SUB
MENU
FIXED
TEMP.
TIMER
PRO-
GRAM
Program mode setting
Press to switch
▼ ▲
Setting overheat prevention device oH
▼ ▲
Calibration offset function ｃAL
Temp. setting
▼
Sv
▲
Quick/auto stop
Auto stop
Fixed temp.
operation
TIMER
Auto start
TIMER
Program 1
PrG1
30 steps x 1 pattern
Program 2
PrG2
15 steps x 2 patterns
Program 3
PrG3
10 steps x 3 patterns
ENTER
RUN/
STOP
Operation start
One sec.
TIMER
Time setting
AStP
ENTER
AStr
ENTER
Setting no. of program steps
End
Temp. setting Temp. setting
▼ ▲ tim
Sv
Sv ENTER
▼ ▲
▼ ▲
▼ ▲
Step 1
Temp. setting
RUN/
STOP
Timer start
One sec.
Sv-1
ENTER
ENTER
▼ ▲
Time setting
Time setting
ENTER tim tim
▼ ▲ ▼ ▲
Step 1
Time setting
RUN/
STOP
Operation start
Automatic stop of operation
One sec.
RUN/
STOP
Auto start of operation
One sec.
Program repeat operation
SUB
MENU
▼ t-1
▲
ENTER
Temp. and time are set in turn for each step
Setting step No.
to return
PS-n
ENTER
▼ ▲
RUN/
STOP
Program operation start
SUB
MENU
ENTER
Program pattern select
PAｔ
▼
ENTER
Setting no. of program steps
End
▼
▲
▲
ENTER
Step 1
Temp.setting
▼
Sv-1
▲
ENTER
ENTER
Step1
Time setting t-1
▼ ▲
ENTER
Temp. and time are set in turn for each step
ENTER
Setting overheat prevention device temp.
▼ ▲
ENTER
PRO-
GRAM
Program operation
PRO-
GRAM
Press to switch
Program mode select
Minus
Program 1
PrG1
30 steps x 1 pattern
Program 2
PrG2
15 steps x 2 patterns
Program 3
PrG3
10 steps x 3 patterns
RUN/
STOP
Operation start
ENTER
Program pattern select
PAｔ
▼ ▲
RUN/
STOP
Operation start
ENTER
ON
ENTER
Setting compensation temp.
▼ ▲
ENTER
SUB
MENU
▼ ▲
Lock function
Lock
ENTER
Lock setting
▼ ▲
ENTER
Setting no. of step repetitions
Pc-n
Program repeat operation
(same as left)
ENTER
▼ ▲
RUN/
STOP
Operation start
Plus
OFF
SUB
MENU
15
4. Operating procedures
Settings for overheat prevention device
The safety device for preventing overheat has the automatic overheat prevention function for the controller (automatic recovery) and has the power supply, the display and the key input assembly in common with the controller as well as it has an overheat prevention device (manual recovery) as a secondary safety measures that consists of separate temperature measurement circuit, the CPU, the sensor and the output circuit.
Temperature setting range and functions
The device has overheat prevention function in double. One is the function integrated in the controller, which is designed to be activated automatically at a temperature 12℃ above the set temperature of the temperature controller (the heater repeats ON/OFF at +12℃) at the time of shipping from the factory.
Another is integrated with the controller and is set with the keys on the controller.
The secondary overheat prevention function is added by this setting.
The temperature range settable for the overheat prevention device integrated with the controller is
“0℃ to the 50℃ + the highest set temperature for the device.”
When the temperature in the bath keeps rising beyond the controller set temperature and reaches the set temperature of the overheat prevention device, the circuit trips, Er19 flashes on the controller screen, and the buzzer continues to sounds.
When the overheat prevention device is activated, it will not be released until power is turned on and
Er19 will not be released.
How to set temperature
MEASURED TEMP.
HEATER
ALARM ℃
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
SET
TEMP.
OVER TEMP.
PROTECTOR
1. Turn power ON. (Turn the ELB to ON.)
When power is turned ON, the initial values will be displayed for about four seconds, then the initial screen will appear and the current bath temperature, operation mode character and the overheat prevention set temperature are displayed on each of the displays.
③
ENTER
FIXED
TEMP.
TIMER PROGRAM
②
RUN
STOP
SUB
MENU
2. Setting the overheat prevention temperature
① Press the SUB MENU key.
② Press the ▼▲ keys to select the overheat prevention
①
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
℃
RUN
STOP temperature setting character oH for the
MEASURED TEMP. display.
③ Pressing the ENTER key displays the current set temperature flashing on the SET TEMP. display.
Caution: In general, set to a temperature at least 10℃ higher than the controller set temperature to prevent the device from malfunctioning.
④ When the temperature you want is obtained with the ▼▲ keys, press the ENTER key to complete setting.
④
FIXED
TEMP.
TIMER
SUB
MENU
Caution
① Set temperature as “highest operation temperature for the unit +20℃” or “set temperature
+20℃” as a rough standard and add 5℃ to the setting if the device functions improperly.
② Be sure to set the overheat prevention activation temperature correctly otherwise the device may not start, the overheat prevention device is activated before temperature in the bath increases completely, or a fire or other unexpected accidents may result.
The temperature is set at 290℃ on shipping from the factory.
③ The overheat prevention device has been designed to prevent overheating of devices not to protect samples. The device does not prevent accidents caused from use of explosive or flammable materials.
16
4. Operating procedures
Operating procedures (fixed temperature operation)
How to start fixed temperature
operation
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
1. Turn power ON. (Turn the ELB to ON.)
When power is turned ON, the initial values will be displayed for about four seconds, then the initial screen will appear and the current bath temperature, operation mode character and the overheat prevention set temperature are displayed on each of the displays.
MEASURED TEMP. display: Indicates the present bath temperature and various characters.
Set temperature display: Indicates the set temperature and various characters.
Overheat prevention set temperature display: Indicates the set temperature for the overheat prevention device.
For operation mode characters, see section page 11.
2. Selecting an operation mode
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
When you want to correct setting errors or confirm
settings
operation mode on the SET TEMP. display.
Display the character Fix
3. Setting the temperature
.
Press the FIXED TEMP. key again.
The character SV that indicate a set temperature is displayed on the MEASURED TEMP. display on which the current set temperature flashes and the FIXED TEMP. lamp flashes.
Set a temperature using the ▼▲ keys.
4. Starting operation
Press the RUN/STOP key for about one second. Operation starts and status of the FIXED TEMP. lamp changes from flashing to illuminated.
5. Stopping operation
Press the RUN/STOP key for about one second. Operation stops, the FIXED TEMP. lamp goes off and the screen switches to the initial setting screen.
When you made a mistake during setting or reconfirm settings you made, press the FIXED TEMP. key again to resume setting.
When you want to change set temperature during operation, press the
FIXED TEMP. key to enter the setting mode and change the set temperature. After change has been made, press the ENTER key to complete the process.
17
4. Operating procedures
Operating procedures (quick auto stop operation)
Procedures for quick
auto stop operation
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
Used when you want to, for example, “stop fixed temperature operation being performed automatically in several hours. Quick auto stop operation is a function to enable auto stop timer setting during operation.
1. Setting time period before stop during fixed temperature
operation
Make sure that the FIXED TEMP. lamp is illuminated to indicate the unit is the fixed temperature operation mode.
Press the TIMER key.
The character tim that indicates the timer is displayed on the MEASURED TEMP. display and the current set time flashes on the SET TEMP. display.
Set a time you want using the ▼▲ keys.
About the timer function The maximum time that can be set for the timer is 999 hours 50 minutes.
Up to 99 hours 59 minutes, time can be set in minutes.
One hundred hours and over are set only in 10 minutes.
Keep the ▼▲ keys pressed to continuously change set time and you can quickly reach the time you want. Press the ▼▲ keys once at a time for fine adjustment.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
FIXED
TEMP.
MEASURED TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
TIMER PROGRAM
℃
RUN
STOP
SUB
MENU
2. Starting timer operation
When you have set a time you want, start the RUN/STOP key for about one second. Timer operation starts with the FIXED TEMP. lamp and the AUTO STOP lamp are illuminated. Timer starts counting when the RUN/STOP key is pressed.
3. Stopping and ending timer operation
Operation stops automatically when the set time comes.
The buzzer sounds for about five seconds to indicate operation has
When you want to correct set temperature or set time, or confirm
settings
stopped. At this time, the character End that indicates operation end is displayed on the SET TEMP. display with the
FIXED TEMP. lamp and the AUTO STOP lamp are illuminated.
Press the RUN/STOP key for approx. one second to end the timer operation mode. The screen switches to the initial setting screen.
When you want to change set temperature during operation, press the
FIXED TEMP. key to enter the setting mode and change the set temperature. After change has been made, press the ENTER key to complete the process. When you want to change set time during operation, press the TIMER key to enter the setting mode and change the set time. Note, however, you need to set a time calculated by adding the time already passed to the time to be added. After change has been made, press the RUN/STOP key to complete the process.
Pressing the ▼ key will display the set temperature, the operation mode and the remaining time on the SET TEMP. display.
18
4. Operating procedures
Operating procedures (auto stop operation)
Procedures for auto
stop operation
Used when you want to “set automatic stop after set time has elapsed from the start of the fixed temperature operation.”
MEASURED TEMP.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
FIXED
TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
TIMER
PROGRAM
℃
RUN
STOP
SUB
MENU
1. Setting a stop time
① Press the TIMER key in the initial screen.
② The timer mode you used in the previous session is displayed on the SET TEMP. display.
Pressing the TIMER key again to flash the timer mode.
Pressing the TIMER key again to flash the next timer mode.
Select the character AStP that indicates the auto stop operation and press the ENTER key.
MEASURED TEMP.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
SET
TEMP.
OVER TEMP.
PROTECTOR
℃
RUN
STOP
The character Sv that indicate a set temperature is displayed on the MEASURED TEMP. display on which the current set temperature flashes and the AUTO STOP lamp flashes.
③ Set a temperature you want using the ▼▲ keys.
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
④ Press the ENTER key. The character tim that indicates the timer is displayed on the MEASURED TEMP. display and the current set time flashes on the SET TEMP. display.
⑤ Set a time you want using the ▼▲ keys.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
FIXED
TEMP.
About the timer
function
The maximum time that can be set for the timer is 999 hours 50 minutes.
Up to 99 hours 59 minutes, time can be set in minutes.
One hundred hours and over are set only in 10 minutes.
Keep the ▼▲ keys pressed to continuously change set time and you can quickly reach the time you want. Press the ▼▲ keys once at a time for fine adjustment.
MEASURED TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
TIMER PROGRAM
℃
RUN
STOP
SUB
MENU
2. Starting timer operation
When you have set a time you want, start the RUN/STOP key for about one second.
Timer operation starts with the AUTO STOP lamp is illuminated.
Timer starts counting when the temperature in the bath (measured temperature) reaches the set temperature.
19
4. Operating procedures
Operating procedures (auto stop operation)
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
When you want to correct set temperature or set time, or confirm
settings
3. Stopping and ending timer operation
Operation stops automatically when the set time comes.
The buzzer sounds for about five seconds to indicate operation has stopped. At this time, the character End that indicates operation end is displayed on the SET TEMP. display with the
AUTO STOP lamp is illuminated. Press the RUN/STOP key for approx. one second to end the timer operation mode. The screen switches to the initial setting screen.
When you want change the set temperature or a set time, press the
TIMER key during operation, set temperature and time for the auto stop operation with the ▼▲ keys and press the ENTER key to complete.
Note, however, when you change the set time you need to set a time calculated by adding the time already passed to the time to be added.
Pressing the ▼ key during operation will display the set temperature, the operation mode and the remaining time on the SET TEMP. display.
In terms of the remaining time display a blinking dot indicates count down and an illuminating dot indicates a wait status
(while temperature is increasing or decreasing to the set temperature) during which the timer has stopped counting.
20
4. Operating procedures
Operating procedures (auto start operation)
Procedures for auto
start operation
MEASURED TEMP.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
SET
TEMP.
OVER TEMP.
PROTECTOR
℃
ENTER
FIXED
TEMP.
TIMER
PROGRAM
RUN
STOP
SUB
MENU
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
Used when you want to “start operation automatically after the set time.”
1. Setting an operation start time
① Press the TIMER key in the initial screen.
② The timer mode you used in the previous session is displayed on the SET TEMP. display.
Pressing the TIMER key again to flash the timer mode.
Pressing the TIMER key again to flash the next timer mode.
Select the character AStP that indicates the auto start operation and press the ENTER key.
The character Sv that indicate a set temperature is displayed on the MEASURED TEMP. display on which the current set temperature flashes and the AUTO START lamp flashes.
③ Set a temperature you want using the ▼▲ keys.
④ Press the ENTER key. The character tim that indicates the timer is displayed on the MEASURED TEMP. display and the current set time flashes on the SET TEMP. display and the AUTO
START lamp flashes.
⑤ Set a time you want using the ▼▲ keys.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
About the timer
function
The maximum time that can be set for the timer is 999 hours 50 minutes.
Up to 99 hours 59 minutes, time can be set in minutes.
One hundred hours and over are set only in 10 minutes.
Keep the ▼▲ keys pressed to continuously change set time and you can quickly reach the time you want. Press the ▼▲ keys once at a time for fine adjustment.
MEASURED TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
℃
RUN
STOP
2. Starting timer operation
When you have set a time you want, start the RUN/STOP key for about one second.
Timer operation starts with the AUTO START lamp is illuminated.
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
21
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
FIXED
TEMP.
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
TIMER
PROGRAM
RUN
STOP
SUB
MENU
4. Operating procedures
Operating procedures (auto start operation)
3. Stopping and ending timer operation
Operation starts automatically when the set time comes.
Press the RUN/STOP key for about one second to start or stop operation. The screen switches to the initial setting screen.
When you want to correct set temperature or set time, or confirm
settings
When you want change the set temperature or a set time, press the
TIMER key during operation, set temperature and time for the auto start operation with the ▼ ▲ keys and press the ENTER key to complete.
Note, however, when you change the set time you need to set a time calculated by adding the time already passed to the time to be added.
Pressing the ▼ key during operation will display the set temperature, the operation mode and the remaining time on the SET TEMP. display.
When operation has started after the auto start time, you cannot change the set time. In this case, first stop operation with the
RUN/STOP key and repeat all settings.
22
4. Operating procedures
Preparing a program
Program
operation
Temp .
Used when you want to “operation at an increased or decreased temperature according to specific time.”
△Program operation start △Operation end Time
Preparing type
Up to six patterns of programs can be stored and input.
PrG1 ―
One pattern of a program consisting of up to 30 steps can be made.
PrG2
PAｔ1
PAｔ2
Two patterns of a program consisting of up to 15 steps can be made.
PAｔ1
PrG3 PAｔ2
Three patterns of a program consisting of up to 10 steps can be made.
PAｔ3
Before inputting a
program
A program pattern must be registered (input) beforehand to start a program operation.
① Confirm the number of steps, temperatures for each step, and time on the program preparation sheet on pages 29 ∼ 30 in the operation manual.
② Confirm the heating and cooling capacity of the device. Time needs to be set within the heating and cooling capacity of the device.
For a device having a cooling or heating capacity of 3℃ for every ten minutes, for example, it requires about 35 minutes to lower or raise by 10℃ from the given temperature.
③ Make sure that the controller has an unused pattern that meets the number of steps to be programmed.
However, when you want to use the repeat function, the number of steps to be repeated can be deducted from the number of steps for the unused pattern.
Useful function
You can use the useful repeat function when you want to repeat the same program steps. See page 28 for how to use the repeat function.
23
4. Operating procedures
Preparing a program
Heating・cooling time of the DVS
model
Rough heating and cooling times of the DVS model are as follows:
Figures show required time for each of temperature zones. [It requires about 15 minutes to raise temperature from 100℃ to 150℃.]
However, be sure to conduct trial operation to determine a correct time since time required for stabilizing temperature needs to be added after the specific set temperature is reached.
Condition: Room temperature:25℃ No load Exhaust port Closed 1/3 [Unit: minute]
DVS402 DVS602
Temp. rise time Temp. fall time Temp. rise time Temp. fall time
260℃
250℃
200℃
150℃
100℃
50℃
5 - 10 -
25 10 30 10
15 20 20 20
15 30 15 30
15 40 10 45
5 100 5 75
Making a program
Programming is explained using a program pattern shown below as an example here.
1. Example of program pattern
Temp.
250℃
200℃
150℃
100℃
0℃
Step
Temp.:℃ 250 250 200 200 150 150 100 Number of steps needs not to be added.
8 9
100 50
Time: 80 30 20 30 30 30 40
Minute
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
FIXED
TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
MEASURED TEMP.
TIMER PROGRAM
℃
RUN
STOP
SUB
MENU
30 100
2. Turn power ON. (Turn the ELB to ON.)
When power is turned ON, the initial values will be displayed for about four seconds, then the initial screen will appear and the current bath temperature, operation mode character and the overheat prevention set temperature are displayed on each of the displays.
3.Selecting a program mode and a program pattern
① Press the PROGRAM key.
The program mode you used in the previous session is displayed on the SET TEMP. display.
Pressing the PROGRAM key again to flash the program mode.
Pressing the PROGRAM key again to flash the next program mode.
24
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER
PROGRAM
SUB
MENU
4. Operating procedures
Preparing a program
② Select a program mode you want and press the ENTER key.
・When PrG1 is selected, End appears on the
MEASURED TEMP. display and the number of steps registered flashes on the SET TEMP. display.
・When PrG2 is selected, PAt appears on the
MEASURED TEMP. display and the pattern number flashes on the SET TEMP. display. To select a pattern select [1] or
[2] with the ▼▲ keys.
Pressing the ENTER key displays End on the MEASURED
TEMP. display and the number of steps registered flashes on the SET TEMP. display.
・When PrG3 is selected, select [1], [2], or [3] following the same procedures as for PrG2.
Since the sample program uses up to nine steps, input is allowed in any of the program modes of PrG1, PrG2, or PrG3.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER
PROGRAM
SUB
MENU
Here, how to register a program is explained using PrG3 as an example.
4. Registering a program (inputting a program)
① Select PrG3 following the previous section 3.
② Input the number of program steps, step temperature, and step time following the entries in the programming sheet.
③ Press the ENTER key. PAt number flashes. (End will appear when PrG1 is selected. Proceed to section ⑥.)
④ Select an unused pattern from PAt1, PAt2, or PAt3 with the
▼▲ keys.
⑤ Press the ENTER key. End appears and the number of steps
“n” flashes.
*End is a character that indicates the total number of steps to be used. In the example, you will input “9.”
⑥ Input the total number of program steps to be used “9” with the
▼▲ keys.
⑦ Press the ENTER key. The character Sv-1 that indicates the set temperature of the first step is displayed and the current set temperature flashes.
⑧ Set a temperature for the first step using the ▼▲ keys.
25
4. Operating procedures
Preparing a program
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
⑨ Press the ENTER key. The character t-1 that indicates the set time of the first step is displayed and the current set time flashes.
* To set a time you need to know the heating capacity (or cooling capacity) of the unit beforehand.
* As an example, DVS 402 model requires about 75 minutes to increase room temperature to 250 ℃ . Therefore, assuming the current temperature to be 25 ℃ , heating capacity can be estimated roughly as three minutes to raise one ℃ meaning 75 minutes is necessary to increase to
250℃. In the example, the time has been estimated as 80 minutes with some allowances added.
* The maximum time that can be set for the timer of each step is 999 hours 50 minutes.
⑩ When time has been set, press the ENTER key.
The temperature set character Sv-2 for the second step is displayed.
Input temperature and time of each step following the programming sheet.
⑪ When you want to repeat a certain program pattern (program repeat) in the middle of a program as in the example, a special procedure will be required. In this case, set time (t-7 in the example) for the step to be repeated (step 7 in the example) and press the SUB MENU key without pressing the ENTER key. Now you can enter the repeat function set mode.
*For operations of the program repeat function and how to register (input), follow procedures in “Program repeat operation” on page 28.
⑫ When setting the temperature and time for the final step has been completed, the screen returns to the initial setting screen.
Request for operation
check
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
MEASURED TEMP.
OVER TEMP.
PROTECTOR
℃
Prior to start actual operation with samples installed, be sure to perform no-load operation to check if the set temperature and the set time is appropriate.
5. Starting the program operation
Press the RUN/STOP key for about one second. The set program operation starts.
The PROGRAM lamp illuminates and steps of the present
ENTER
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU operation will be displayed from the step St-1
TEMP. display.
on the SET
*Press the ▼ key during operation to check the set temperature and the remaining time for each step being operated on the SET
TEMP. display.
26
4. Operating procedures
Preparing a program
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
SET
TEMP.
OVER TEMP.
PROTECTOR
℃
RUN
STOP
6. Terminating the program operation
When the program operation is terminated, the buzzer sounds for about five seconds to notify it to the user.
Character “End” appears on the SET TEMP. screen to indicate operation has ended.
Press the RUN/STOP keys to return to the initial setting screen.
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
About the timer function The maximum time that can be set for the timer of each step is 999 hours 50 minutes.
Up to 99 hours 59 minutes, time can be set in minutes.
One hundred hours and over are set only in 10 minutes.
Keep the ▼▲ keys pressed to continuously change set time and you can quickly reach the time you want. Press the ▼▲ keys once at a time for fine adjustment.
When you want to correct setting errors
or confirm settings
About wait of the
program operation
When you want to go back to previous steps for example to correct programming errors or to confirm settings, press the FIXED TEMP. key to return the setting screen to the previous screen.
Every time you press the FIXED TEMP. key you will go back by one step.
Note: Be sure to perform these operations on the program
setting screen.
When the program proceeds from a step to the next step and measured temperature has not reached or exceeded the set temperature after the set time for the step has elapsed, the next step will not start.
However, the unit has been set to proceed to the next step when the measured temperature is ±3℃ to the set temperature.
27
4. Operating procedures
Program repeat operation
Using the program
repeat function
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
FIXED
TEMP.
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
TIMER
PROGRAM
RUN
STOP
SUB
MENU
When you want to correct setting errors or confirm
settings
This section explains how to register a program pattern to be repeated
(program repeat) during the program operation.
Using the program repeat function
This section explains how to register a program when you want to use the program repeat function in the middle of registering a program described in the previous section 4.
This procedure sets the number of step to return to “PS-n” and the number of repetition “Pc-n.” (n: step number when inputting the repeat operation)
① Set time (t-7 in the example) for the step to be repeated (step 7 in the example) and press the SUB MENU key without pressing the ENTER key. Now you can enter the repeat function set mode.
② Character “PS-n” that indicates “return destination select” of a program pattern is displayed on the MEASURED TEMP. display.
In the example, the repeat function is input in the seventh step and PS-7 display.
is displayed on the MEASURED TEMP.
You can input a number 1 to 7 of a step to return to on the SET
TEMP. display and input the number of step (1 in the example) using the ▼▲ keys.
③ Then press the SUB MENU key.
④ Character “Pc-n” that indicates “number of repetitions” is displayed on the MEASURED TEMP. display. Input the number (2 in the example) using the ▼▲ keys.
⑤ Pressing the SUB MENU key again to move the screen to the next step. The screen moves to the Sv-8 registration screen in the example.
No alteration is allowed in the middle of the repeat set mode.
If you want to go back to the previous step for example, to correct setting errors or to reconfirm settings you have made, finish repeat setting once, press the FIXED TEMP. key when the screen has changed to the temperature set screen for the next step to return the set screen to the previous screen and then redo repeat setting operations.
Note: Be sure to perform these operations on the program setting
screen.
If you have any questions, ask the nearest sales office or the
customer support center.
28
4. Operating procedures
Programming sheet
Make duplicates as necessary.
Registration destination
PrG1 PrG2 PrG3 PAt1 PAt2 PAt3 Control No.
Title of test
Y/M/D
Prepared by
Program pattern
250℃
200℃
150℃
100℃
50℃
Step No.
29
4. Operating procedures
Programming sheet
Registration destination
Title of test
PrG1 PrG2 PrG3 PAt1 PAt2 PAt3
Program input values
Step 15
Step 16
Step 17
Step 18
Step 19
Step 20
Step 21
Step 22
Step 23
Step 24
Step 25
Step 26
Step 27
Step 28
Step 29
Step 30
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Step 10
Step 11
Step 12
Step 13
Step 14
Set temperature (℃)
Make duplicates as necessary.
Control No.
Y/M/D
Prepared by
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
Set time (unit: minutes)
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
Repeat function input
(Return destination:
No. of times
：
：
：
：
：
：
：
：
：
：
：
：
：
：
：
30
4. Operating procedures
Useful functions (calibration offset function)
Using the calibration
offset function
Calibration offset function compensates any differences between the target temperature in the bath and the control temperature of the controller (sensor temperature.) The function can compensate in parallel to either plus or minus side for the whole temperature band of the unit. The lock can be set or released with the SUB MENU keys.
Controled temp. after compensation to minus side
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
ENTER
MEASURED TEMP.
℃
SET
TEMP.
OVER TEMP.
PROTECTOR
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
Present temp.
Controlled temp. after compensation to plus side
① Start operation at the target set temperature and confirm the temperature in the bath (sample temperature) with a temperature recorder after temperature has stabilized.
② Confirm the difference between the set temperature and that in the bath (sample temperature).
③ Press the SUB MENU key, select the character cAL that indicates calibration offset using the ▼▲ keys and press the
ENTER key.
④ Input the difference between the set temperature and that in the bath using the ▼▲ keys and press the ENTER key to complete setting.
* You can set either of + or – side up to +99℃ and -99℃ respectively for the offset compensation temperature.
When compensation is set for the – side, the MEASURED
TEMP. display decreases by the compensation temperature while the temperature in the bath increases by the same amount.
When compensation is set for the + side, the MEASURED
TEMP. display increases by the compensation temperature while the temperature in the bath decreases by the same amount.
* Since too large a compensation value may result in larger difference between the actual and indicated temperatures and may present a danger, consult our nearest sales office before entering a large compensation value.
* The device has, in addition to the calibration offset function, the two-point compensation function that adjusts offset for the lower temperature range and higher temperature range, for which adjustment temperatures have been input on shipping from the factory.
* Consult the nearest sales office before attempting validation work for the temperature adjusting device.
31
Using the lock
function
MEASURED TEMP.
HEATER
ALARM
AUTO STOP
AUTO START
FIXED TEMP.
PROGRAM
SET
TEMP.
OVER TEMP.
PROTECTOR
℃
ENTER
RUN
STOP
FIXED
TEMP.
TIMER PROGRAM
SUB
MENU
4. Operating procedures
Useful function (lock function)
This function locks the set operation status.
The lock can be set or released with the SUB MENU key.
① Press the SUB MENU key, select the character Lock that indicates setting lock using the ▼▲ keys and press the ENTER key.
② “OFF” is displayed on the SET TEMP. screen. To lock settings, change to “ON” using the ▲ key.
③ To release lock, press the SUB MENU key, select the character
Lock that indicates setting lock using the ▼▲ keys and press the ENTER key.
Lock is released when “off” is selected using the ▼ key and the
ENTER key is pressed.
* When the lock function is “ON”, keys other than the RUN/STOP key and the SUB MENU key are locked.
32
5. Cautions on handling
Warning
1. About substances that cannot be used for the unit
Never use an explosive substance, a flammable substance or a substance containing them for this device.
An explosion or an electrical shock may result.
See section “13. List of dangerous materials” on page 43.
2. Prohibition of use/countermeasures when an error occurs
If smoke is emerges on the unit or an odd odor is felt, immediately turn the power supply off, remove the power cord (plug) from the power supply and contact your dealer or a Yamato sales office for inspection. Otherwise, a fire or an electrical shock may result. The user shall never attempt to repair the unit to avoid any possible dangers.
Caution
1. Do not place an object on the unit.
Do not place an object on the unit. Such an object may fall and cause a personal injury.
2. When a thunder is heard.
When a thunder is heard, turn the switch off and turn the power supply off immediately.
Otherwise, a lightning strike may result and cause a malfunction or a fire.
3. When opening or closing the door
When opening or closing the door, do not put your hand or face close to the area the door moves (space). The door may touch your hand or face and causing an injury.
4. Do not operate the unit with the door open.
・When the unit is operated with the door open, proper temperature control is not possible and the heater may overheat pausing a possible danger. Be sure to operate the unit with the door closed.
・After operation has been completed, do not leave the unit with its door open in order to, for example, cool down samples earlier. Heat from inside the bath may cause deformation of the control panel of a malfunction of the control devices.
5. Prohibition of use of corrosive samples
Although SUS304 stainless steel is used for components in the bath, note that they might corrode with strong acid. Door packing is made of silicon rubber. Note that silicon rubber packing may corrode with acid, alkali, oil or halogen-based solvent.
6. Always operate the unit at a correct ambient temperature.
The operating temperature range is room temperature range from +5∼260℃ above room temperature.
Never try to operate the unit outside the operating temperature range.
33
5.Cautions on handling
Caution
7. About placement of samples
Withstand load of the shelf boards included is approx. 15kg. Do not place a sample heavier than this withstand load.
When putting samples, arrange them as dispersed as possible.
Too many samples may prevent proper temperature control. To assure proper temperature precision, put samples with a space at least 30% of the shelf board area.
8. Do not put a sample on the bottom inside the bath.
Never place a sample on the bottom, since if the unit is operated with a sample directly placed on the bottom of the internal bath, the optimal performance of the unit will not be attained, temperature in the bath may increase excessively causing a malfunction.
Arrange samples on the shelf boards supplied and set the board on the shelf clamps.
Placing a shelf board
Do not place directly
9. About recovery from power outage.
When the power is applied again after the unit has stopped due to power outage, the unit resumes operation with the status immediately before the power outage.
10. About two-tier stacking
Stack the units in two tiers using the special stacking clamps included as optional accessories.
Do not stack unit in two tiers directly on each other.
11. After installation
The unit might fall down by an earthquake or an impact resulting a personal injury.
Take appropriate safety measures to prevent the unit from tripping over.
34
6. Maintenance procedures
Daily inspection/maintenance
Warning z Be sure to pull out the power cord for the power supply unless necessary before trying to do inspection and maintenance works. z Start these works after the device has returned to the normal temperature. z Never try to disassemble the unit.
Caution z Wipe off any dirt with a tightly wrung soft cloth. Never try to clean the unit with benzene, thinner or scouring powder, or rub with a scrubbing brush. Deformation, degradation or discoloration may result.
Every month
z Inspect the functions of the ELB.
・Test shall be performed with the power cord connected and power is being supplied to the unit.
・First turn the ELB to “ON.”
・Then press the test button on the ELB with a ball-point pen to check if it is turned off to indicate that it is in the normal state.
Test button
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7. When the unit is not to be used for a long time
or when disposing
When the unit is not to be used for a long time or when disposing
Caution Warning
When the unit is not going to be used When disposing the unit
for a long time
z Turn the main switch off and pull out the power cord (plug) from the power supply. z Do not leave the unit in the area where children may have access. z Be sure to remove handles before disposing the unit to prevent the doors from locking. z In general, dispose the unit as a bulky waste.
Notes about disposition
Always pay attention to the preservation of the global environment.
・ We highly recommend taking the unit apart as far as possible for separation or recycling to contribute to the preservation of the global environment. Major components and materials for the unit are as follows:
Names of major components
Material
Major mechanism part components
Exterior
Interior
Heat insulator
Steel plate Melamine resin baking finish
Stainless steel SUS304
Glass wool
Door packing
Nameplates
Silicon rubber foam
Polyethylene (PET) resin film
Major electric parts
Heater SUS321 stainless steel pipe heater
Boards
Composite parts including boards, capacitor, resistor and transformer
Power cord, wire material and others
Synthetic rubber sheathed and resin sheathed wires
36
8. Troubleshooting
Safety device and error codes
The unit has the self diagnostic function with a controller and a separate safety device.
Table below shows possible causes and measures when the safety device is triggered.
[Error codes]
When a functional or mechanical abnormality occurs, the alarm lamp on the control panel comes on, an error code will be displayed and the alarm buzzer sounds. When an abnormality occurs, confirm the error code and immediately stop operation.
Safety device Symptom Possible causes and measures
Sensor error detected
SSR short circuit detected
Heater disconnection detected
Memory error
Internal communication error
Alarm lamp on z Disconnection or other errors in the temperature sensor
Contact our service department.
Alarm lamp on appears z SSR short circuit
Contact our service department.
Alarm lamp on appears z Heater disconnection
Contact our service department.
Alarm lamp on appears z Memory setting error
Contact our service department.
Alarm lamp on appears z Internal communication or the temperature input circuit error
Contact our service department. appears
Overheat
Measured temperature error
Alarm lamp on appears z Activation of overheat prevention device
Check the set temperature.
Contact our service department if the unit will not recover.
Alarm lamp on
−−−−
- - - - appears z When the measured temperature is outside the displayable range
Contact our service department.
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8. Troubleshooting
When a malfunction is suspected
If any of the symptoms below occurs
Symptom Check
The unit is not activated even if the power is turned on z Check if the power cord is connected to the power supply or to an outlet securely. z Check if power outage is occurring.
Temperature does not rise. z Check if the set temperature is below that in the bath. z Check if the power supply voltage has declined. z Check if the ambient temperature is low. z Check if cooling load for inside the bath is too large.
Temperature fluctuates during operation. z Check if the set temperature is appropriate. z Check if the power supply voltage has declined. z Check if ambient temperature fluctuates widely. z Check if cooling load for inside the bath is too large.
Displayed temperature differs from the measurement. z Check if the calibration offset setting is other than “0”. Set it to
“0.”
Confirm settings in “Useful functions (calibration offset function)” in page 31.
◆If the symptom does not match any of the above, immediately turn the power switch on the main unit off, pull out the power cord (plug) from the power supply and contact your dealer or one of our sales offices.
38
9. After sales service and warranty
When requesting a repair
When requesting a repair
If any trouble occurs, immediately stop operation, turn the power switch off, pull out the power plug and contact your dealer or our sales office.
Information necessary for requesting a repair
●Model name of the product
●Serial number
Refer to the warranty card or the nameplate on the unit.
See “3. Names and functions of parts” on page 10.
●Date (y/m/d) of purchase
●Description of trouble （as in detail as possible）
Be sure to indicate the warranty card to our service representative.
Warranty card (attached separately)
●Warranty card is given by your dealer or one of our sales offices and please fill in your dealer, date of purchase and other information and store securely.
●Warranty period is one full year from the date of purchase. Repair service for free is available according to the conditions written on the warranty card.
●For repairs after the warranty period consult your dealer or one of our sales offices. Paid repair service is available on your request when the product’s functionality can be maintained by repair.
Minimum holding period of repair parts
The minimum holding period of repair parts for this product is seven years after end of production.
Repair parts here refer to parts necessary for maintaining performance of the product.
39
10. Specifications
Model
Operating temperature range
Temperature control precision
Temperature distribution precision
Temperature rise time
Exhaust damper
Heater
Controller
Control system
Setting system
Operation modes
Sensor
Auxiliary functions
DVS402 DVS602
Room temperature ＋5℃∼260℃（no load at an ambient temperature of 23℃）
±1℃（at 260℃）
±5℃（at 260℃）
Approx.90minutes（room temperature +5℃∼260℃）
Rotation damper with opening rate of 20% when closed
SUS pipe heater 1.2 kW SUS pipe heater 1.36 kW
VS4 program controller
PID control of heater output with a micro computer
Digital setting system with the dedicated menu keys and the ▼▲ keys
Fixed temperature operation, program operation, quick auto stop operation, auto stop operation, auto start operation.
K thermocouple
Lock function, calibration offset function, power outage compensation function
Temperature sensor error, heater error, memory error, SSR short circuit, auto overheat prevention, measured temperature error
Self diagnostic function
Protection device
ELB with an over current protector, overheat prevention device
(electronic type with an integrated controller)
Outer dimensions
(mm)
(w x d x h)
Inner dimensions
(mm)*2
(w x d x h)
Internal volume
Weight
Observation window
(mm)
Power supply
560×601×820 710×651×870
450×490×450 600×540×500
99L
Approx. 48 kg
162L
Approx. 63 kg
250×280 Reinforced glass
Included items
100V 50/60 Hz 12.5A 100V 50/60 Hz 14A
Shelf board x 2 (withstand load approx. 15 kg/each)
Operating instructions, warranty card
*Performance values are for the VAC100 power supply with no-load.
*Operating environmental temperature range for this device is 5℃∼35℃.
40
11. Wiring diagram
DVS402/602
ELB
AC100V
H
T
1
2
3
4
X1
CT
X
2
1
SSR
3
4
1 .
2
3
.
CN5
1
CN8
18
18
CN1
1
1
2
3
CN2
1
CN9
18
1
2
CN1
TB1
1
2
3
4
5
6
.
.
.
1 .
2
3
.
.
CN4
CONT
+
-
+
-
18
CN2
1
PIO
TH1
TH2
Symbol
ELB
T
H
X
SSR
Part name
ELB with an over current protector
Terminal block
Heater
Main relay
No-contact relay
Symbol
CONT
PIO
TH1
TH2
CT
Part name
Control circuit board
Display circuit board
Control sensor
Overheat prevention sensor
Current detection element
41
12. List of replacement parts
Common replacement parts for DVS402/602
Standard Maker Code No.
1 Sensor
LCK-M1-2000Y @K single
Yamato 1160030049
2 VS4 Planar board
3
VS3, 4 Display circuit boards
VS4
VS3, 4
Yamato
Yamato
1020000053
1020000051
6 SSR
7 Power cord kit
8
ELB with an over current protector
300 mm
AHE1254 100V
TRS5225
2.0sq 3P Plug
BJS153 15A（DVS402）
BJS203 20A（DVS602）
Yamato 1130000008
Matsushita 2050000019
Toho 2160000035
Yamato LT00008924
Matsushita
2060050001
2060050002
9 Current detection element CTL-6-S-H URD 2170010005
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13. List of dangerous materials
Never use an explosive material, a flammable material or a material containing them for this device.
① Nitroglycol, glycerine trinitrate, cellulose nitrate and other explosive nitrate esters
② Trinitrobenzen, trinitrotoluenem, picric acid and other explosive nitro compounds
③ Acetyl hydroperoxide, methyl ethyl ketone peroxide, benzoyl peroxide and other organic peroxides
Metal “lithium”, metal “potassium”, metal “natrium”, yellow phosphorus, phosphorus sulfide, red phosphorus, celluloids, calcium carbide (a.k.a, carbide), lime phosphide, magnesium powder, aluminum powder, metal powder other than magnesium and aluminum powder, sodium dithionous acid (a.k.a., hydrosulphite)
① Potassium chlorate, sodium chlorate, ammonium chlorate, and other chlorates
② Potassium perchlorate, sodium perchlorate, ammonium perchlorate, and other perchlorates
③ Potassium perchlorate, sodium perchlorate, ammonium perchlorate, and other inorganic perchlorates
④ Potassium nitrate, sodium nitrate, ammonium nitrate, and other nitrates
⑤ Sodium chlorite and other chlorites
⑥ Calcium hypochlorite and other hypochlorites
① Ethyl ether, gasoline, acetaldehyde, propylene chloride, carbon disulfide, and other substances with ignition point at a degree 30 or more degrees below zero.
② n-hexane, ethylene oxide, acetone, benzene, methyl ethyl ketone and other substances with ignition point between 30 degrees below zero and less than zero.
③ Methanol, ethanol, xylene, pentyl acetate, (a.k.a.amyl acetate) and other substances with ignition point between zero and less than 30 degrees.
④ Kerosene, light oil, terebinth oil, isopenthyl alcohol(a.k.a. isoamyl alcohol), acetic acid and other substances with ignition point between 30 degrees and less than 65 degrees.
Hydrogen, acetylene, ethylene, methane, ethane, propane, butane and other
Substance which is a flammable gas at 15 degrees, one air pressure.
(Quoted from the separate table 1 in Article 6, the enforcement order of
the Industrial Safety and Health Law)
43
14. Standard installation manual
*Install the product according to the following: (Confirm separately for optional items or special specifications)
Model Serial number Date
Installation mgr.(company name)
Installation mgr.
Judg ment
№ Item
Specifications
1
Included items
2 Installation
Check for number of staffs against the included item field
10.Specifications field
・ Visual check of environmental conditions
Caution:
Take care for environment
・Securing a space unit
・ On the installation site
P.40
P.4
Operation-related matters
1
2
Source voltage
Operation start
・ Measure the user side voltage
(outlet) with a tester
・ Measure voltage during operation
(shall meet the specifications)
Caution:
Always use a plug that meets the specification for attaching to the
ELB.
2. Before operating the unit
・ Be sure to connect the ground wire.
・ Power supply is ….
10.Specifications
・Specification - power supply
・Starts operation 2. Before operating the unit
Performs fixed temperature ・Installation operation, auto stop operation, procedures… auto start operation, or program operation.
4. Operating procedures
P.4
P.7
P.40
P.4~
8
P.13~
32
Description
1
3
4
Operational descriptions
Maintenance and inspection
Completion of installation
Entries
TOC No. Reference page of the operating instruction manual
Judg ment
Explain operations of each component according to the operational instructions
4. Operating procedures
・Operating procedures
1. Safety precautions
∼13. List of dangerous materials
P.13~
32
P.1
∼43
Explain the customer about error
8. Troubleshooting
∼9. After sales service codes and procedures for release instructions and warranty according to the operational
P.37
39
Explain operations of each component according to the operational instructions
6. Maintenance procedures
・Daily inspection/ maintenance
P.35
・ Fill in the installation date and the installation mgr. on the nameplate of the main unit
・ Fill in necessary information to the warranty card and hand it over to the customer
・ Explanation of the route for after-sales service
9. After sales service and warranty
P.39
44
Limited liability
Be sure to use the unit strictly following the handling and operating instructions in this operating instruction.
Yamato Scientific Co., Ltd. assumes no responsibility for an accident or a malfunction caused by use of this product in any way not specified in this operating instruction.
Never attempt to perform matters prohibited in this operation instruction.
Otherwise, an unexpected accident may result.
Notice
◆Descriptions in this operating instruction are subject to change without notice.
◆We will replace a manual with a missing page or paging disorder.
Operating instruction
Constant Temperature Drying Oven
DVS402/602
First edition 17 September 2004
Yamato Scientific Co., Ltd.
〒103-8432
2-1-6, Nihonbashi, Honcho, Chuo-ku, Tokyo
Customer support center
Tool free: 0120-405525 http://www.yamato-net.co.jp
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