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DF & DH Series – High Performance Programmable Oven

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DF412 / DF612 / DH412 / DH612

Laboratory Oven is essential for general heating routines from drying food samples to curing microchips.  Lab Oven is one of the fundamental instruments every laboratory should have.

DF & DH Series is a Highly reliable and accurate fine oven with simple settings for various temperature characteristic tests requiring complicated programming.

Improved visibility and operability of control panel.
Precise temperature stability & uniformity.
Standard equipped with adjustable air speed function and displays of power consumption, CO₂ emission and heat timer.
Enhanced program operation function (maximum 99 steps, 99 patterns, repetitive operation function).
Improved safety with fan motor error detection.
Exhaust damper allows quick exhaust and cooling of inside chamber.
Equipped with exhaust and cable ports.

Safety features:

Self-diagnosis circuit (abnormal temp. sensing, heater disconnection, auto overheat prevention, SSR short circuit), overheat protector, earth leakage breaker, key lock and door switch.

Applications
  • - Pharmaceutical Industry
  • - Microbiological Culture Research
  • - Cell Culture Research
  • - Industrial Products
Technical specifications
DF412
DF612
DH412
DH612
System
Forced air circulation and ventilation
Operating temperature range
Room temp. +15~260°C
Room temp. +15~360°C
Temperature control accuracy
± 0.1°C (at 260°C)
± 0.2°C (at 360°C)
Temperature distribution accuracy
± 1.5°C (at 260°C)
± 2.5°C (at 360°C)
Maximum temperature reaching time
~40 min. (reaches 260°C when setting at 270°C)
~50 min. (reaches 360°C when setting at 370°C)
Interior
Stainless steel
Exterior
Chrome-free electro-galvanized steel sheet metal, chemical-proof baked on finish
Exhaust port
Automatic exhaust damper I.D. 80 mm (rear panel)
Cable port
I.D. 33 mm x 1 pc. (rear)
Heater
SUS pipe heater / 2.1kW
SUS pipe heater / 3.0kW
SUS pipe heater / 2.7kW
SUS pipe heater / 3.75kW
Heat insulation material
Glass wool
Heater Circuit Control
Triac with zero-crossing method
Fan type / Motor
Axial fan (capacitor type motor 20W)
Door
Single swing (left side)
Sensor
K thermocouple (double sensor)
Temperature control
PlD Z control
Temperature setting
Digital setting by ▲/▼ key
Temperature display
Setting temp. display: Digital display by 5-digit orange LED  (resolution: 1°C) Temp. display: Digital display by 4-digit green LED  (resolution: 1°C)
Other indication
LED indicates temperature patterns for heating/stabilizing/cooling
Timer / timer resolution
Fixed value operation for 1 min. to 99 hrs. 59 mins. 24 hr time system: clock operation
Operation function
Fixed temperature, Auto start, Auto stop, Program operation: up to 99 steps, 99 patterns, repeat operation function
Additional functions
Variable air flow function, power on time and timer accumulation monitor  (up to 65535 hrs), calibration offset, power consumption display, total  CO₂ emissions and heat operation output, power failure recovery mode,  setting data backup and recovery
Safety device
Self-diagnostic functions (temp. sensor error, TRIAC short circuit,  heater disconnection, SSR short-circuit, fan motor failure, main relay  contact damage and overheating), key lock function, door switch (door  open, fan motor and heater circuit OFF / door close: fan motor and  heater circuit ON), independent overheat prevention (temp. setting  range: 0~300°C for DF and 0~400°C for DH).
Earth leakage breaker
15A
20A
30A
Leak current/short circuit / Over-current protection, rated current sensitivity 30mA
Internal dimensions WxDxH
450×450×450 mm
600×600×600 mm
450×450×450 mm
600x600x600 mm
External dimensions WxDxH
1050×630×850 mm
1200×780×1000 mm
1050×630×850 mm
1200×780×1000 mm
Internal capacity
91L
216L
91L
216L
Shelf load capacity
~30 kg/pc.
Shelf rest step number
9 steps / 45 mm
9 steps / 60 mm
9 steps / 45 mm
9 steps / 60 mm
Power supply (50/60 Hz)
12,5A (no plug, round terminal)
17,5A (no plug, round terminal)
15,5A (no plug, round terminal)
17,5A (no plug, round terminal)
Weight
~112 kg
~156 kg
~112 kg
~156 kg
Shelfs and Brackets (stainless)
2 pcs / 4 pcs
3 pcs / 6 pcs
2 pcs / 4 pcs
3 pcs / 6 pcs
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