Yamato Scientific DVS602 Constant Temperature Drying Oven User Manual

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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.

(Note 2) Minor injury means a wound or an electrical shock that does not require 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

Danger!:

Danger!:

Danger!:

Danger!:Hazard of

High voltage

High temperature

Moving part

explosion

 

Caution

General cautions

Electrical shock!

Burning!

Caution for no

Caution for water

liquid heating!

leak!

 

 

 

For water only

Poisonous

material

 

Prohibitions

General bans

Fire ban

Do not

Do not touch

disassemble

 

 

 

Compulsions

General

Connect ground

Install levelly

Pull out the power

Regular

compulsions

wire

plug

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 When a bipolar type outlet tap is used tap.

Grounded

tap

Power plug

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

1m or more

Front

15 cm or more

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

Flat Install the unit on a level surface.

unit since it may cause a malfunction.

Installing this unit on a slope might cause

 

unexpected troubles or malfunctions.

Alteration

6. Do not overload shelves.

7. Do not place too many samples.

Withstand load of each shelf board is 15kg in uniform loading. Place samples in a dispersed fashion.

Sample

15 kg

Shelf board

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.

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.

DVS402 AC100V 12.5A 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

Screw

Screw

Shelf board

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

3. Names and functions of parts

Main body

Front view

Observation window

Door

Cable hole

Rating sticker

Handle

Main switch

(Earth leakage breaker)

Control panel

Rear panel

Exhaust port

Power cord

9

3. Names and functions of parts

Operation panel

 

HEATER

MEASURED TEMP.

 

 

 

 

 

 

 

 

ALARM

 

 

 

 

 

AUTO STOP

 

 

 

 

AUTO START

SET

 

 

 

 

 

 

 

 

FIXED TEMP.

TEMP.

 

 

 

 

 

 

 

 

OVER TEMP.

 

 

 

 

PROGRAM

 

 

 

 

 

PROTECTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

 

 

RUN

 

 

 

 

STOP

 

 

 

 

 

 

 

 

 

 

FIXED

TIMER

PROGRAM

SUB

 

 

TEMP.

MENU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No.

Name

Operation/action

 

RUN/STOP key

Used for starting/stopping operation

 

 

 

 

▲▼ keys

Used for selecting settings.

 

 

 

 

ENTER key

Used for determining a selected setting.

 

 

 

 

FIXED TEMP. key

Key for selecting fixed temperature operation.

 

 

 

 

TIMER key

Key for selecting timer operation.

 

 

Quick auto stop operation, auto stop operation or auto start

 

 

operation can be selected.

 

PROGRAM key

Used for selecting programming and starting the program operation.

 

 

Programs of six patterns in three types can be set.

 

SUB MENU key

Key for setting temperature of the overheat prevention device,

 

 

calibration offset temperature, the key lock function or the program

 

 

repeat function.

 

HEATER lamp

Illuminates while heater power is on.

 

 

 

 

ALARM lamp

When an error occurs, the lamp illuminates with an audible buzzer.

 

 

 

 

AUTO STOP lamp

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.

 

AUTO START lamp

Flashes while the auto start timer is being set and illuminates while

 

 

the unit is in operation.

 

FIXED TEMP. lamp

Flashes while fixed temperature operation is being set and

 

 

illuminates while the unit is in operation.

 

PROGRAM lamp

Flashes while the program operation is being set and illuminates

 

 

while the unit is in operation.

 

MEASURED TEMP.

Displays measured temperature in the bath set characters alarm

 

display

information.

 

SET TEMP. display

Displays a set temperature, timer settings and timer remaining time.

 

 

 

 

OVER TEMP.

Displays the set temperature for the overheat prevention device.

 

PROTECTOR display

 

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

 

 

 

 

 

 

 

 

 

 

Fix

Fixed temperature

Means settings for fixed temperature

 

 

 

 

 

 

operation setting

operation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Used for selecting a program type 1,

 

 

 

PrG3

Program type select

2 or 3 to be used.

 

 

 

 

 

See section “Preparing a program on

 

 

 

 

 

 

 

 

 

 

page 23.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Used for selecting a program pattern

 

 

 

PAt

Program pattern select

to be used.

 

 

 

 

 

See section “Preparing a program on

 

 

 

 

 

 

 

 

 

 

page 23.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Displayed when timer operation has

 

 

 

 

 

 

 

 

End

Time up

ended.

 

 

 

 

 

 

 

 

See page 18, 19, and 21.

 

 

 

 

 

 

 

 

 

 

Sv-1

Program temperature

Used

for setting

temperatures for

 

 

 

 

 

 

each step of a program.

 

 

 

 

setting

 

 

 

 

 

(Sv-1 to Sv-30 are displayed.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Used for setting time for each step of

 

 

 

 

 

 

 

 

t-1

Program time setting

a program.

 

 

 

 

 

 

 

(t-1 to t-30 are displayed.)

 

 

 

 

 

 

 

 

 

 

 

Program repeat

Used for selecting a step for returning

 

 

 

 

during program repeat operation.

 

 

 

PS-3

Selecting a return

 

 

 

See

section

“Program

repeat

 

 

 

 

destination

 

 

 

 

operation” on page 28.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setting number of

Used for setting number of program

 

 

 

Pc-2

repeat operations.

 

 

 

 

 

program repetitions

See

section

“Program

repeat

 

 

 

 

 

 

 

 

 

operation” on page 28.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

3. Names and functions of parts

Explanation of characters

 

Characters

 

Identifier

Name

 

Application

 

 

 

 

 

 

 

 

 

 

 

Used for inputting a calibration offset

 

 

 

cAL

Calibration offset setting

temperature

 

 

 

 

See section “Using the calibration

 

 

 

 

 

 

 

 

 

 

offset function” on page 31.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setting overheat

Used for

setting an overheat

 

 

 

 

protection device temperature.

 

 

 

oH

protection device

 

 

 

See section “Settings for overheat

 

 

 

 

temperature

 

 

 

 

prevention device” on page 16.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Key locks settings to prevent their

 

 

 

Lock

Key lock of settings

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

4. Operating procedures

List of operation modes and functions

Operation modes of the unit are as shown below:

Name

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

Page

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressing

the

 

 

 

 

 

 

 

 

 

key

to

enter

the

fixed

 

 

 

FIXED TEMP.

 

 

 

temperature operation setting mode.

 

 

 

 

 

 

 

Fixed temperature

Pressing

the

FIXED TEMP.

key

again to

enter

the

 

1

temperature setting mode.

 

 

 

 

 

 

 

P.17

operation

 

 

 

 

 

 

 

 

Set a temperature with the ▼▲ keys.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

Quick auto

Pressing the

TIMER

key during the fixed temperature

 

2

operation to enable setting a time before operation stops.

P.18

stop operation

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.

 

 

 

 

 

 

 

 

Used when you want to “set automatic stop for fixed

 

 

 

temperature operation when making settings for it.”

 

 

 

 

 

Press the

TIMER

 

key to display “AStP.”

 

 

 

 

 

3

Auto stop operation

Pressing

the

ENTER

key to set the temperature setting “Sv.”

P.19

 

 

Pressing the

 

 

ENTER

 

 

key again to enable setting of the

 

 

 

operation time

“tim.”

 

 

 

 

 

 

 

 

 

 

 

Pressing the

RUN/STOP

key starts auto stop operation.

 

 

 

 

 

 

 

 

 

 

 

 

 

Used when you want to “start operation automatically after

 

 

 

several hours” after power is turned on.

 

 

 

 

 

 

 

Press the

TIMER

 

key to display “AStr.”

 

 

 

 

 

 

4

Auto start operation

Pressing

the

ENTER

key to set the temperature setting “Sv.”

P.21

 

 

Pressing the

 

ENTER

 

 

key again to enable setting of the

 

 

 

operation time

“tim.”

 

 

 

 

 

 

 

 

 

 

 

Pressing the

RUN/STOP

key starts auto start operation.

 

 

 

 

 

 

 

 

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)

 

 

5

Program operation

Press the

PROGRAM

 

key again to select a program mode

P.23

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Operation mode cannot be changed while the unit is in operation.

First stop operation before

 

changing the mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

+ 32 hidden pages