Yamato Scientific DKN 912 Constant Temperature Drying Oven User Manual

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Forced Convection

Constant Temperature Drying Oven

Model

DKN 302/402/602

612/812/912

Instruction Manual

- First Edition -

zThank you for purchasing "Forced Convection Constant Temperature Drying Oven, DKN Series" of Yamato Scientific Co., Ltd.

zTo use this unit properly, read this "Instruction Manual" thoroughly before using this unit.

Keep this instruction manual around this unit for referring at anytime.

WARNING!:

Carefully read and thoroughly understand the important warning items described in this manual before using this unit.

Yamato Scientific Co. LTD.

 

 

 

Contents

Cautions in Using with Safety................................................................

1

 

Explanation....................................................................................................................

1

 

Table of Illustrated Symbols ..........................................................................................

2

 

Fundamental Matters of "WARNING!" and "CAUTION!"...............................................

3

Before Using this unit.............................................................................

4

 

Requirements for Installation.........................................................................................

4

Description and Function of Each Part .................................................

9

 

Main Unit .......................................................................................................................

9

 

Control Panel...............................................................................................................

12

 

Characters of the Controller ........................................................................................

13

 

Operation Method .................................................................................

14

 

Operation Mode and Function List ..............................................................................

14

 

Operation Mode, Function Setting Key, and Characters .............................................

16

 

Setting of Overheating Prevention Device ..................................................................

17

 

Fixed Temperature Operation......................................................................................

18

 

Quick Auto Stop Operation..........................................................................................

19

 

Auto Stop Operation....................................................................................................

20

 

Auto Start Operation....................................................................................................

22

 

Program Operation......................................................................................................

24

 

Other Functions...........................................................................................................

31

 

Handling Precautions ...........................................................................

32

 

Maintenance Method.............................................................................

34

 

Daily Inspection and Maintenance ..............................................................................

34

Long storage and disposal...................................................................

35

 

When not using this unit for long term / When disposing ............................................

35

In the Event of Failure… .......................................................................

36

 

Safety Device and Error Code.....................................................................................

36

 

Trouble Shooting .........................................................................................................

37

After Service and Warranty ..................................................................

38

 

Specification..........................................................................................

39

 

Wiring Diagram......................................................................................

40

 

Replacement Parts Table......................................................................

44

 

Reference...............................................................................................

45

 

List of Dangerous Substances ....................................................................................

45

Cautions in Using with Safety

Explanation

MEANING OF ILLUSTRATED SYMBOLS

Illustrated Symbols

Various symbols are used in this safety manual in order to use the unit without danger of injury and damage of the unit. A list of problems caused by ignoring the warnings and improper handling is divided as shown below.Be sure that you understand the warnings and cautions in this manual before operating the unit.

WARNING!

CAUTION!

If the warning is ignored, there is the danger of a problem that may cause a serious accident or even fatality.

If the caution is ignored, there is the danger of a problem that may cause injury/damage to property or the unit itself.

Meaning of Symbols

This symbol indicates items that urge the warning (including the caution). A detailed warning message is shown adjacent to the symbol.

This symbol indicates items that are strictly prohibited.

A detailed message is shown adjacent to the symbol with specific actions not to perform.

This symbol indicates items that should be always performed.

A detailed message with instructions is shown adjacent to the symbol.

1

Cautions in Using with Safety

Table of Illustrated Symbols

Warning

Warning,

Warning,

Warning,

Warning,

Warning,

generally

high voltage

high temperature

drive train

explosive

Caution

Caution,

Caution,

Caution,

Caution,

Caution,

generally

electrical shock

scald

no road heating

not to drench

Caution,

Caution,

water only

deadly poison

Prohibit

Prohibit,

Prohibit,

Prohibit,

Prohibit,

generally

inflammable

to disassemble

to touch

Compulsion

Compulsion,

Compulsion,

Compulsion,

Compulsion,

Compulsion,

generally

connect to the

install on a flat

disconnect the

periodical

 

grounding

surface

power plug

inspection

 

terminal

 

 

 

2

Cautions in Using with Safety

Fundamental Matters of "WARNING!" and "CAUTION!"

WARNING!

Do not use this unit in an area where there is flammable or explosive gas

Never use this unit in an area where there is flammable or explosive gas. This unit is not explosion-proof. An arc may be generated when the power switch is turned on or off, and fire/explosion may result. (Refer to page 45 "List of Dangerous Substances".)

Always ground this unit

Always ground this unit on the power equipment side in order to avoid electrical shock due to a power surge.

If a problem occurs

If smoke or strange odor should come out of this unit for some reason, turn off the power key right away, and then turn off the circuit breaker and the main power. Immediately contact a service technician for inspection. If this procedure is not followed, fire or electrical shock may result. Never perform repair work yourself, since it is dangerous and not recommended.

Do not use the power cord if it is bundled or tangled

Do not use the power cord if it is bundled or tangled. If it is used in this manner, it can overheat and fire may be caused.

Do not process, bend, wring, or stretch the power cord forcibly

Do not process, bend, wring, or stretch the power cord forcibly. Fire or electrical shock may result.

Substances that can not be used

Never use explosive substances, flammable substances and substances that include explosive or flammable ingredients in this unit. Explosion or fire may occur. (Refer to page 45 "List of Dangerous Substances".)

Do not disassemble or modify this unit

Do not disassemble or modify this unit. Fire or electrical shock or failure may be caused.

Do not touch high-temperature parts

The inside of the body or the door may become hot during and just after operation. It may cause burns.

CAUTION!

During a thunder storm

During a thunderstorm, turn off the power key immediately, then turn off the circuit breaker and the main power. If this procedure is not followed, fire or electrical shock may be caused.

3

Before Using this unit

Requirements for Installation

WARNING!

1.Always ground this unit

The DKN302, DKN402and DKN602 types use a 100V power source.

The DKN612, DKN812 and DKN912types use a single-phase 200V power source. Please consult your local electrical contractor for power connecting work.

Be sure to connect the earth wire (the green cable of power cord) to the grounding conductor or ground terminal to prevent accidents caused by electric leakage.

Do not connect the earth wire to gas or water pipes. If not, fire disaster may be caused.

Do not connect the earth wire to the ground for telephone wire or lightning conductor. If not, fire disaster or electric shock may be caused.

Do not use a branching receptacle, which may cause the heat generation.

2.Choose a proper place for installation

Do not install this unit in a place where:

Rough or dirty surface.

Flammable gas or corrosive gas is generated.

Ambient temperature exceeds 35°C.

Ambient temperature fluctuates violently.

There is direct sunlight.

There is excessive humidity and dust.

There is a constant vibration.

Install this unit on a stable place with the space as shown below.

The exhausted opening is provided at the top surface of unit for DKN302, DKN402, DKN602 and DKN612 types, and at the back surface for DKN812 and DKN912 types.

More than 30cm

More than

Main Unit

More than

15cm

15cm

 

 

Front side

 

4

Before Using this unit

Requirements for Installation

3. Do not use this unit in an area where there is flammable or explosive gas

(Refer to page 45 "List of Dangerous Substances".)

• Never use this unit in an area where there is flammable or explosive gas. This unit is not explosion-proof. An arc may be generated when the power switch is turned ON or OFF, and fire/explosion may result.

• Never use explosive substances, flammable substances and substances that include explosive or flammable ingredients in this unit. Explosion or fire may occur.

Flammable

substance

5

Before Using this unit

Requirements for Installation

4. Do not modify

5. Installation on horizontal surface

Modification of this unit is strictly prohibited. This could cause a failure.

Set this unit to the flattest place. Setting this unit on rough or slope place could cause the vibration or noise, or cause the unexpectible trouble or malfunction.

Do not modify

To the flattest place

CAUTION!

6. Do not make an overload

7. Do not set samples in close formation

The withstand load of shelf is 15kguniform load Set the samples apart each other.

Samples

15Kg

Shelf

The temperature in furnace cannot be controlled if too much samples are set there. Make sure to use the shelf and set samples apart each other so as to make the free space of 30% or more to the furnace to acquire accuracy of temperature.

Make the free space of 30% or more

6

Before Using this unit

Requirements for Installation

8.Choose a correct power distribution board or receptacle

Choose a correct power distribution board or receptacle that meets the unit’s rated electric capacity.

Electric capacity:

DKN302:

100V AC, 8.5A

DKN612:

φ

 

1 200V AC, 8A

 

DKN402:

100V AC, 12.5A

DKN812:

1φ200V AC, 12.5A

 

DKN602:

100V AC, 14A

DKN912:

1φ200V AC, 15.5A

NOTE)

There could be the case that the unit does not run even after turning ON the power. Inspect whether the voltage of the main power is lowered than the specified value, or whether other device(s) uses the same power line of this unit. If the phenomena might be found, change the power line of this unit to the other power line. Please consult your dealer or a local electrical contractor for the connection of devices that use a single-phase 200V power source.

9.Before/after installing

It may cause injure to a person if this unit falls down or moves by the earthquake and the impact. etc..To prevent, take measures that the unit cannot fall down, and not install to busy place.

Touching the unit may cause a burn during and just after the operation. To prevent, take measures that putting up a notice of operating etc..

Make sure to lock the caster for DKN812and DKN912 types.

10.Setting of the shelf and sample

D The number of shelves attached varies depending on the type of product (2 to 8).One of them (two for DKN912 ) is previously fixed on the lowermost stand of bracket supporter with screws at factory shipment. Set the other shelves in place in furnace as necessary.

One of the shelves is fixed on the lowermost stand of bracket supporter with screws at factory shipment.The temperature of current plate and its adjacence is usually higher than the setting temperature because a heater is provided under it, which may cause burn of sample or fire disaster if a sample is directly put on the current plate. To prevent such accidents, the shelf is fixed with screws as shown in the figure. Be sure to provide sufficient space between the current plate and sample in case the shelf must be removed due to the shape of sample. Do not put the sample directly on the current plate.

Bracket supporter

Bracket

M4 screw

Never use explosive substances,

flammable substances and

 

Shelf

substances that include explosive

or flammable ingredients in this

Current plate

 

7

Before Using this unit

Requirements for Installation

11.Handling of power code

Do not entangle the power cord. This will cause overheating and possibly a fire.

Do not bend or twist the power cord, or apply excessive tension to it. This may cause a fire and electrical shock.

Do not lay the power cord under a desk or chair, and do not allow it to be pinched in order to prevent it from being damaged and to avoid a fire or electrical shock.

Keep the power cord away from any heating equipment such as a room heater. The cord's insulation may melt and cause a fire or electrical shock.

If the power cord becomes damaged (wiring exposed, breakage, etc.), immediately turn off the power at the rear of this unit and shut off the main supply power. Then contact your nearest dealer for replacement of the power cord. Leaving it may cause a fire or electrical shock.

Connect the power plug to the receptacle which is supplied appropriate power and voltage.

8

 

 

Description and Function of Each Part

 

Main Unit

 

 

 

DKN302/402/602/612

 

 

 

Front view

Exhausted opening

Door

Cable port

Glass window

Production plate

Door handle

Control panel

Main switch

 

(Earth leakage breaker)

Rear view

Power cord

DKN612

9

Description and Function of Each Part

Main Unit

DKN812

Front view

Control panel

 

Main switch

Door

(breaker)

 

Cable port

Production plate

Caster

Door handle

Rear view

Exhausted opening

Power cord

10

Description and Function of Each Part

Main Unit

DKN912

Front view

Control panel

Main switch

(Earth leakage breaker)

Cable port

Production plate

Door handle

Door

Caster

Rear view

Exhausted opening

Power cord

11

+ 35 hidden pages