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Laboratory Constant Temperature Ovens


  • 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.
Natural convection ovens of standard type.
A natural convection, programmable constant temperature oven incorporating programmable operation functions and a wide range of other function, and boasting enhanced safety features and operability.

402 602
Operating Temperature Range
Room temp. +5deg.C to 260deg.C
Temp. Distribution Accuracy
Internal Capacity (L)
99 162

PDF Catalog

Model DVS402 DVS602
Circulation method Natural convection
Operating temperature range Room temp.+5 to 260deg.C
Temp. control accuracy
Temp. distribution accuracy
±1.0deg.C(at 260deg.C)
±5.0deg.C(at 260deg.C)
Max. temp. reaching time Approx. 90 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
1.2KW 1.36KW
Exhaust port/Cable hole 30 mm l.D.×2 pcs.(the top) /30 mm l.D.×1 pc.(right side)
Observation window 250×280 mm
Temp. controller 3 patterns program controller, PID control by microprocessor
Temp. setting method Operation menu key and 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, Auto stop, Quick Auto-stop,
Program operation : 6 pattern, 30 steps(30 steps×1, 15 steps×2, 10 steps×3)
Additional functions Calibration off-set function, Key lock , Uninterruptible power for memory, Pattern repeat function
Heater circuit control SSR control
Sensor K-thermocouple
Safe Device
Safety countermeasures Self diagnosis functions (temp. sensor abnormal, Heater disconnection, SSR- short, Memory abnormal, Automatic overheating prevention), Overheat prevention, Electric leakage breaker with over current protection
Internal dimensions (W×D×Hmm)
External dimensions(W×D×Hmm)
Internal capacity
99 liters
162 liters
Shelf plate with standard load Approx. 15kg/piece
Shelf rest step number 9 steps 13 steps
Shelf rest pitch 30 mm
Power source 50/60Hz AC100V 12.5A(15A) AC100V 14.0A(20A)
weight Approx. 48 kg Approx. 63 kg
Shelf plate Stainless steel, 2 pcs.
Shelf bracket 4 pcs.

*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.

Control Panel Temp.Rising Curve

Interior Exhaust Holes Cable Hole

Dimensional Drawing (mm)

Optional items
Remark Description Model No. Product Code
Stand ON61 DVS Series 211856
  Stacking support for DVS402, OD40 DVS Series 212822
  Stacking support for DVS602, OD60 DVS Series 212823
  Shelf (with support 2 pcs) for DVS402 DVS Series 212246
  Shelf (with support 2 pcs) for DVS602 DVS Series 212266
Cable Port, 25mm dia DVS Series 281131
Cable Port, 50mm dia DVS Series 281132
Temperature output terminal (4-20 mA) DVS Series 281133
External alarm terminal/ time-up output terminal (to choose either) DVS Series 281134
External communication function (RS485) DVS Series 281135
External communication adapter (changeable to RS232C) DVS Series 281136
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
Shelf (with 2 support)

Stainless Punching Metal (Weight Tolerance 15kg/pc)
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