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Industrial & Laboratory Constant Temperature Ovens DKN302/402/602/612/812/912



  • Fixed setting, programmed, Quick Auto stop, Auto stop, and Auto start operating modes are possible, along with easy control capabilities.
  • Settings can be made digitally using the dedicated operation menu keys or the keys. Incorporates a 30-step, 3-pattern program controller with repeat functions.
  • Over-heating prevention and calibration offsetting are possible through the auxiliary functions.
  • Comprehensive safety features.
Forced convection ovens of standard type, Programmable.
A forced convection, programmable constant temperature oven incorporating programmable operation functions and a wide range of other function, and boasting enhanced safety features and operability.

302 402 602/612 812 912
Operating temp. range
Room temp. +10deg.C to 260deg.C Room temp. +10deg.C to 250deg.C Room temp. +10deg.C to 210deg.C
Temp. distribution accuracy

PDF Catalog


Circulation method Forced air circulation
Operating temperature range Room temp.+10 to 260deg.C Room temp.+10 to 250deg.C Room temp.+10 to 210deg.C
Temp. control accuracy
Temp. distribution accuracy
±1.0deg.C(at 210deg.C)
±2.5deg.C(at 210deg.C)
Max. temp. reaching time Approx. 90 min. Approx. 60 min.
Interior material
Exterior material
Stainless steel
Cold rolled steel plate with melamine resin baking finish
Heat insulating material Glass wool
Heater Stainless pipe heater
0.8KW 1.2KW 1.34KW 1.2KW x 2 1.5KW x 2
Fan type Scirocco fan, Condenser type
Motor 10W 30W 10W x 2
Exhaust port/Cable port 30 mm l.D.×2 pcs.(the top) /30 mm l.D.×1 pc. (right side) 30 mm l.D.×2 pcs.(the back)/30 mm l.D.×1 pc. (right side)
Observation window 180×180mm 250×280mm None
Temp. controller 3 patterns program controller, PID control by microprocessor
Temp. setting method Digital setting by UP/DOWN key
Temp display method Measurement temp. : Digital display by green LED Setting temp. : Digital display by red LED
Timer 1 min. to 99 Hrs. 59 min. and 100 Hrs. to 999 Hrs. 50 min.
Min. division 1 min. or 1 Hrs.
Operation function
Program mode
Fixed temperature operation, Program operation, Auto start, Quick Auto-stop,
Program operation : 3 pattern, 30 steps(30 steps×1, 15 steps×2, 10 steps×3) Pattern repeat function
Additional functions Calibration off-set function, Key lock, Uninterruptible power for memory
Heater circuit control
SSR control
Safe Device
Safety countermeasures Self diagnosis functions (temp. sensor abnormal, Heater disconnection, SSR- short, 
Automatic overheating prevention), Key lock function, Overheat prevention, 
Electric leakage breaker with over current protection
Internal dimensions (W×D×Hmm)
External dimensions(W×D×Hmm)
Internal capacity
27 liters
90 liters
150 liters
300 liters
535 liters
Shelf plate with standard load Approx. 15kg/piece
Shelf rest step number 6 steps 9 steps 12 steps 29 steps 29 steps x 2
Shelf rest pitch 30mm
Power source 50/60Hz 100V/220V 
single phase, 
single phase, 
single phase, 
14A /7A/6.4A
single phase, 
single phase, 
weight Approx. 35 kg Approx. 50 kg Approx. 65 kg Approx. 110 kg Approx. 190 kg
Shelf plate Stainless steel, 2 pcs. Stainless steel, 4 pcs. Stainless steel, 8 pcs.
Shelf bracket 4 pcs. (1 pair - 2 pcs. is fixed) 8 pcs. (Same as left) 16 pcs. (2 pairs are fixed)

* The performance shown here is the value under the condition of the ambient temperature of 23deg.C±5deg.C, humidity of 65%RH±20%.

* The projection is not included for Internal dimensions and External dimensions.


DKN812/300L DKN912/535L


Control Panel Temp.Rising Curve




Exhaust Holes Cable Hole


Dimensions (Unit:mm)



Optional items
Remark Description Model No. Product Code
Stand forDKN302, ON30 DKN Series 211180
Stand for DKN402/602, ON61 DKN Series 211856
  Stacking support for DKN402, OD40 DKN Series 212822
  Stacking support forDKN602/612, OD60 DKN Series 212823
  Shelf (with support 2 pcs) for DKN302 DKN Series 212094
  Shelf (with support 2 pcs) for DKN402 DKN Series 212246
  Shelf (with support 2 pcs) for DKN602/612/812 DKN Series 212266
  Shelf (with support 2 pcs) for DKN912 DKN Series 212490
Cable port, 25mm dia DKN Series 281121
Cable port, 50mm dia DKN Series 281122
Temperature output terminal (4-20 mA) DKN Series 281123
External alarm terminal/ time-up output terminal (to choose either) * DKN Series 281124
  * In case auto damper is chosen, external alarm terminal
will become time-up output terminal.
DKN Series  
  * Signal tower is also available upon request. DKN Series  
External communication function (RS485) DKN Series 281125
External communication adapter (changeable to RS232C) DKN Series 281126
Anti-vibration material with support EPM-08 DKN Series 851352
Anti-vibration material without support  EPM-05 DKN Series 851351
1. The item marked " ● " in the column of "Remark" shall be ordered together with the main unit.
2. The transportation cost will not be required if the order is together with main unit except the item marked "○".
In case you order the item marked "○" together with the main unit, please ask Yamato to obtain the correct transportation cost.

ON Model
Anti Vibration Material
Shelf (with 2 support)

Stainless Punching Metal (Weight Tolerance 15kg/pc)




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Ruko Concordia SRB 26, Kota Wisata Cibubur Bogor 16968 Indonesia

Phone : (0 21)-29478974  

Mobile/WA : 0811 1388 063

 Email : sales@ptbestinstrument.com