Yamato Scientific DKN 912 User Manual
g
Forced Convection
Constant Temperature Drying Oven
Model
DKN 302/402/602
612/812/912
Instruction Manual
- First Edition -
z Thank you for purchasing "Forced Convection
Constant Temperature Drying Oven, DKN
Series" of Yamato Scientific Co., Ltd.
z To 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 usin
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
Explanation
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.
Cautions in Using with Safety
MEANING OF ILLUSTRATED SYMBOLS
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
Table of Illustrated Symbols
Warning
Cautions in Using with Safety
Warning,
generally
Caution
Caution,
generally
Caution,
water only
Warning,
high voltage
Caution,
electrical shock
Caution,
deadly poison
Warning,
high temperature
Caution,
Warning,
drive train
Caution,
scald
no road heating
Warning,
explosive
Caution,
not to drench
Prohibit
Prohibit,
generally
Compulsion
Compulsion,
generally
inflammable
Compulsion,
connect to the
Prohibit,
grounding
terminal
to disassemble
Compulsion,
install on a flat
Prohibit,
surface
Prohibit,
to touch
Compulsion,
disconnect the
power plug
Compulsion,
periodical
inspection
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
Requirements for Installation
Before Using this unit
WARNING!
1. Always ground this unit
• The DKN302, DKN402and DKN602 types use a 100V power so urce.
• The DKN612, DKN812 and DKN912types use a single-p hase 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
15cm
More than 30cm
Main Unit
Front side
More than
15cm
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 sub s tances,
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.
Do not modify To the flattest place
• 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.
CAUTION!
6. Do not make an overload 7. Do not set samples in close formation
• The withstand load of shelf is 15kg
（uniform 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:
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.
DKN302: 100V AC, 8.5A
DKN402: 100V AC, 12.5A
DKN602: 100V AC, 14A
DKN612: 1φ200V AC, 8A
DKN812: 1φ200V AC, 12.5A
DKN912: 1φ200V AC, 15.5A
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
M4 screw
Bracket
Shelf
Never use explosive substances,
flammable substances and
substances that include explosive
or flammable ingredients in this
Current plate
7
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.
Before Using this unit
8
Main Unit
DKN302/402/602/612
Front view
Door
Glass window
Description and Function of Each Part
Exhausted opening
Cable port
Production plate
Door handle
Rear view
Power cord
Control panel
Main switch
(Earth leakage breaker)
DKN612のみ
9
Main Unit
DKN812
Front view
Door
Description and Function of Each Part
Control panel
Main switch
(breaker)
Cable port
Production plate
Door handle
Rear view
Exhausted opening
Power cord
Caster
10
Main Unit
DKN912
Front view
Description and Function of Each Part
Control panel
Main switch
(Earth leakage breaker)
Cable port
Production plate
Rear view
Door handle
Door
Caster
Exhausted opening
Power cord
11
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