Yamato DKN 302 Instruction Manual
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Yamato DKN 302 Instruction Manual

Forced convection constant temperature drying oven
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Forced Convection
Constant Temperature Drying Oven
Model
DKN 302/402/602
Instruction Manual
- First Edition -
Thank you for purchasing "Forced Convection
Constant
Temperature
Series" of Yamato Scientific Co., Ltd.
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 using this unit.
Yamato Scientific Co. LTD.
612/812/912
Drying
Oven,
DKN

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Summary of Contents for Yamato DKN 302

  • Page 1 Thank you for purchasing "Forced Convection Constant Temperature Drying Oven, Series" of Yamato Scientific Co., Ltd. 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.

  • Page 3: Table Of Contents

    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 •...

  • Page 5: Cautions In Using With Safety

    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.

  • Page 6: Table Of Illustrated Symbols

    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...

  • Page 7: Fundamental Matters Of "Warning!" And "Caution

    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.

  • Page 8: Before Using This Unit

    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. •...
  • Page 9 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.
  • Page 10 Before Using this unit Requirements for Installation 4. Do not modify 5. Installation on horizontal surface • Modification of this unit is strictly • Set this unit to the flattest place. Setting prohibited. This could cause a failure. this unit on rough or slope place could cause the vibration or noise, or cause the unexpectible trouble or malfunction.
  • Page 11 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: 1 200V AC, 8A DKN402: 100V AC, 12.5A DKN812: 1 200V AC, 12.5A DKN602: 100V AC, 14A...
  • Page 12 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.

  • Page 13: Description And Function Of Each Part

    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 Main switch Control panel (Earth leakage breaker) Rear view Power cord...
  • Page 14 Description and Function of Each Part Main Unit DKN812 Front view Control panel Main switch (breaker) Door Cable port Production plate Caster Door handle Rear view Exhausted opening Power cord...
  • Page 15 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...

  • Page 16: Control Panel

    Description and Function of Each Part Control Panel POWER Starts/stops the operation. START/STOP Key Uses for rising UP/lowering DOWN the setting value. Settles the inputted value. ENTER Key Chooses the fixed temperature operation. FIXED TEMP Key Chooses the timer operation (Quick Auto Stop/Auto Stop/Auto TIMER Key Start).

  • Page 17: Characters Of The Controller

    Description and Function of Each Part Characters of the Controller The characters VS4 controller shows are as follows: Character Identifier Name Purpose Used for starting the fixed temperature Fixed Temperature operation. Setting Mode Used for setting the temperature. Temperature Setting Represents the setting of quick auto stop or Timer Setting Mode AStP...

  • Page 18: Operation Method

    Operation Method Operation Mode and Function List All the operation mode of this unit is as follows; Name Description Page Pressing the FIXED TEMP key enters into the fixed temperature operation setting mode. Fixed Temperature Pressing it again enters into the temperature setting mode. Operation The "...
  • Page 19 Operation Method Operation Mode and Function List The operation function of this unit is as follows; Name Description Page This function is set to be automatically activated Auto overheating (auto reset) when the temperature exceeds the prevention function setting temperature by 12 . Though the device shares power source, display, and key input with the controller, it has Overheating...

  • Page 20: Operation Mode, Function Setting Key, And Characters

    Operation Method Operation Mode, Function Setting Key, and Characters The operation mode setting and function setting use the key operation and characters show in the following figure.

  • Page 21: Setting Of Overheating Prevention Device

    Operation Method Setting of Overheating Prevention Device The unit has the overheating prevention device (manual reset) that consists of independent temperature measurement circuit, CPU, sensor and output circuit (it shares power source, display, and key input with the controller) in addition to the automatic overheating prevention function (auto reset) in the controller.

  • Page 22: Fixed Temperature Operation

    Operation Method Fixed Temperature Operation 1. Turn on the power (turn on the breaker in front) Fixed temperature operation procedure The default value is displayed for about four seconds after turning on the power. The screen then displays the initial setting. The current temperature in furnace, operation mode character and setting temperature of overheating prevention device are displayed on respective screens.

  • Page 23: Quick Auto Stop Operation

    Operation Method Quick Auto Stop Operation This operation is used to specify the period up to automatic stop, Quick auto stop i.e., sets the auto stop timer during operation. operation procedure 1. Set the time up to stop during fixed temperature operation •...

  • Page 24: Auto Stop Operation

    Operation Method Auto Stop Operation This operation is used to specify the automatic stop time in the Auto stop operation fixed temperature operation. procedure 1. Set stop time Press the TIMER key on the initial screen. Press the TIMER key again. The setting temperature display screen displays the character "AstP", which indicates the auto stop operation, with blinking.
  • Page 25 Operation Method Auto Stop Operation 3. Stop/terminate timer operation • The operation stops automatically at setting time. • Buzzer continues to sound for about five minutes at operation stop. • The setting temperature screen displays the character "End", which indicates termination of operation, with the FIXED TEMP and AUTO STOP lamps lighting on.

  • Page 26: Auto Start Operation

    Operation Method Auto Start Operation This operation is used to specify the period up to automatic start Auto start operation after power on. procedure 1. Set start time Press the TIMER key on the initial screen. Press the TIMER key again. The setting temperature display screen displays the character "Astr", which indicates the auto start operation, with blinking.
  • Page 27 Operation Method Auto Start Operation 3. Stop/terminate timer operation • The operation starts automatically at setting time. • Press the START/STOP key for one second to stop or terminate operation. The screen returns to the initial setting screen. To correct or check setting… Changing the setting temperature or time during operation is possible by pressing the TIMER key.

  • Page 28: Program Operation

    Operation Method Program Operation This operation is used to change the temperature according to the setting temperature and time. Temp. Time Start Stop Program types Six patterns of program types maximum can be input. PrG1 1 program pattern using 30 steps maximum can be created. PAt1 PrG2 2 program patterns using 15 steps maximum can be created.
  • Page 29 Operation Method Program Operation Program creation The program pattern below is explained as an example. 1. Program pattern example Temp. Step Repeat function Temp.( ) The number of steps is not counted. Time(min.) 1. Turn on the power POWER • Turn on the power switch of the unit.
  • Page 30 Operation Method Program Operation The example shown below explains the method of program registration using PrG3. 4. Register program Select PrG3 referring to 3 mentioned above.. Input the number of steps, temperature and time for respective steps using the program creation sheet. Press the ENTER key.
  • Page 31 Operation Method Program Operation 5. Start program operation • Press the START/STOP key for about one second. program operation previously set starts. • The PROGRAM lamp lights on and the setting temperature screen displays the step currently under operation. Press the " " to check the setting temperature and residual time of step currently under operation on the setting temperature screen.
  • Page 32 Operation Method Program Operation Use program repeat function This section explains how to register the program repeat (repeating a program pattern) in program operation. This section explains the registration procedure of program using repeat function in "4. Register program" above. The procedure sets the step number to be repeated "PS-n"...
  • Page 33 Operation Method Program Operation Programming Preparation Form 1 (Please use this form by making copies) Register with: PrG1 PrG2 PrG3 PAt1 PAt2 PAt3 Date Project Name Programmer Program Pattern STEP...
  • Page 34 Operation Method Program Operation Programming Preparation Form 2 (Please use this form by making copies) Register with: PrG1 PrG2 PrG3 PAt1 PAt2 PAt3 Date Project Name Programmer Input Value Temperature ( ) Time (min.) Repeat Function Step 1 To/Times Step 2 Step 3 Step 4 Step 5...

  • Page 35: Other Functions

    Operation Method Other Functions Use calibration offset function Calibration offset is a function which corrects the difference between the temperature in furnace and that of controller (sensor temperature) if arises. The function parallel corrects the difference either to the plus or minus side within the whole temperature range of unit. The function can be set or cancelled by the SUBMENU key.

  • Page 36: Handling Precautions

    Handling Precautions WARNING! 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.
  • Page 37 Handling Precautions Setting of sample Since the withstand load of the attached shelf plate is about 15kg per one plate, do not set heavier sample than 15kg. When setting several sample, set them as dispersed as possible. Too much sample setting could cause the improper control of the temperature. For keeping the proper temperature, keep more than 30% space against whole size of the shelf plate, and set the sample.

  • Page 38: Maintenance Method

    Maintenance Method Daily Inspection and Maintenance For the safety use of this unit, please perform the daily inspection and maintenance without fail. Using the city water to this unit might attach dirt. Do inspect and maintain this point while performing daily inspection and maintenance. WARNING! •...

  • Page 39: Long Storage And Disposal

    Long storage and disposal When not using this unit for long term / When disposing CAUTION! When not using this unit for long term… • Turn off the power and disconnect the power cord. WARNING! When disposing… • Keep out of reach of children. •...

  • Page 40: In The Event Of Failure

    In the Event of Failure… Safety Device and Error Code This unit has an automatic diagnosis function built in the controller and safety devices independent of the controller. The table below shows the cause and the solution method when the safety device operates. Error Code: When an abnormal condition occurs, an error code appears and the alarm lamp lights in the controller, the buzzer sounds simultaneously.

  • Page 41: Trouble Shooting

    The power supply voltage is lower than the proper value. In the case if the error other than listed above occurred, turn off the power switch and primary power source immediately. Contact the shop of your purchase or nearest Yamato Scientific Service Office.

  • Page 42: After Service And Warranty

    In Case of Request for Repair If the failure occurs, stop the operation, turn OFF the power switch, and unplug the power plug. Please contact the sales agency that this unit was purchased, or the Yamato Scientific's sales office. < Check following items before contact >...

  • Page 43: Specification

    Specification DKN302 DKN402 DKN602/612 DKN812 DKN912 Method Forced circulation Temperature control 0 to 260 (Ambient temp.: 23 , No load, Damper: full closed) range Temperature (Middle of furnace, Set temp.: 210 , Damper: full closed) adjustment accuracy Temperature (Set temp.: 210 , Damper: full closed) distribution accuracy (Room temp.

  • Page 44: Wiring Diagram

    Wiring Diagram DKN302/402/602 Symbol Part name Symbol Part name Earth leakage breaker CONT Control board Terminal block Display circuit board Heater Sensor for control Main relay Sensor for overheating prevention Circulation fan Current transformer Breakerless relay...
  • Page 45 Wiring Diagram DKN612 Symbol Part name Symbol Part name Earth leakage breaker CONT Control board Terminal block Display circuit board Heater Sensor for control Main relay Sensor for overheating prevention Circulation fan Current transformer Breakerless relay...
  • Page 46 Wiring Diagram DKN812 Symbol Part name Symbol Part name Earth leakage breaker CONT Control board Terminal block Display circuit board H1/H2 Heater Sensor for control Main relay Sensor for overheating prevention Circulation fan Current transformer Breakerless relay...
  • Page 47 Wiring Diagram DKN912 Symbol Part name Symbol Part name Earth leakage breaker CONT Control board Terminal block Display circuit board H1/H2 Heater Sensor for control Main relay Sensor for overheating prevention FM1/FM2 Circulation fan Current transformer Breakerless relay...

  • Page 48: Replacement Parts Table

    Replacement Parts Table DKN302/402/602 Part Name Specification Manufacturer Code No. Sensor LCK-M -2000-Y K single Yamato Scientific VS4 PLANAR board Yamato Scientific VS4 display circuit board Yamato Scientific Tough card 50mm Yamato Scientific Main relay AHE1254 100V/120V Matsushita TRS5225 Toho Denshi Power cord kit 2.0sq 3p plug...

  • Page 49: Reference

    Reference List of Dangerous Substances Never use explosive substances, flammable substances and substances that include explosive or flammable ingredients in this unit. EXPLOSIVE Ethylene glycol dinitrate (nitro glycol), Glycerin trinitrate (nitroglycerine), Cellulose nitrate (nitrocellulose), and other explosive nitrate esters Trinitrobenzene, Trinitrotoluene, Trinitrophenol (picric acid), and other explosive EXPLOSIVE: nitro compounds Acetyl hidroperoxide (peracetic acid), Methyl ethyl ketone peroxide, Benzyl...
  • Page 50 Responsibility Please follow the instructions in this document when using this unit. Yamato Scientific has no responsibility for the accidents or breakdown of device if it is used with a failure to comply. Never conduct what this document forbids. Unexpected accidents or breakdown may result in.

This manual is also suitable for:

Dkn 012Dkn 912

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