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Yamato DF & DH Series High Performance Programmable Fine Ovens

DF412/612 DH412/612


Highly reliable and accurate fine ovens with simple settings for various temperature characteristic tests requiring complicated programming

Performance and functions

  • 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

Your choice of laboratory oven can have a big effect on your daily lab routines. Download Yamato’s Complete Guide To Buying The Perfect Lab Oven guide and discover how your everyday applications and facility requirements factor into choosing an oven that can provide the best results for your samples.

SystemForced air circulation and ventilation
Operating temp. range*¹Room temp. +15~260°CRoom temp. +15~360°C
Temp. adjustment accuracy*¹± 0.1°C (at 260°C)± 0.2°C (at 360°C)
Temp. distribution accuracy*¹± 1.5°C (at 260°C)± 2.5°C (at 360°C)
Max. temp. reaching time*¹~40 min. (reaches 260°C when setting at 270°C)~50 min. (reaches 360°C when setting at 370°C)
Temp. control systemPlD Z control
Temp. setting methodDigital setting by ▲/▼ key
Temp. display methodSetting 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 indicationLED indicates temperature patterns for heating/stabilizing/cooling
Timer display rangeFixed value operation for 1 min. to 99 hrs. 59 mins. 24 hr time system: clock operation
Operation functionsFixed temperature, Auto start, Auto stop, Program operation: up to 99 steps, 99 patterns, repeat operation function
Additional functionsVariable 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
SensorK thermocouple (double sensor)
Heater insulatorSUS pipe heater with fan
Heater capacity2.1 kW3.0 kW2.7 kW3.75 kW
Blower fan (motor)Axial fan (capacitor type motor 20W)
Cable portI.D. 33 mm x 1 pc. (rear)
Interior / exterior materialStainless steel/ Chrome-free electro-galvanized steel sheet metal, chemical-proof baked on finish
DoorSingle swing (left side)
Exhaust portAutomatic exhaust damper I.D. 80 mm (rear panel)
Heat insulatorGlass wool
Heater circuit controlTriac with zero-crossing method
Earth leakage breaker15A20A20A30A
Leak current/short circuit / Over-current protection, rated current sensitivity 30mA
Safety deviceSelf-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)
Internal dimensions*² W×D×H450×450×450 mm600×600×600 mm 450×450×450 mm600x600x600 mm
External dimensions*² W×D×H 1050×630×850 mm1200×780×1000 mm1050×630×850 mm1200×780×1000 mm
Internal capacity91L216L91L216L
Shelf max. load~30kg / pc.
Shelf support qty. / pitch9 steps / 45mm9 steps / 60mm9 steps / 45mm9 steps / 60mm
Power source 50/60 Hz single phase AC220V 12.5A (no plug, round terminal)AC220V 17.5A (no plug, round terminal)AC220V 15.5A (no plug, round terminal) AC220V 17.5A (no plug, round terminal)
Weight~112 kg~156 kg~112 kg~156 kg
Included accessoriesShelf and brackets
Shelf / bracket2 pcs / 4 pcs3 pcs / 6 pcs2 pcs / 4 pcs3 pcs / 6 pcs
List Price$ 5,160$ 5,930$ 5,690$ 6,400

*¹ Performance data above based on rated source voltage, single phase 220V AC ±5%, supplied power, 23°C±5°C (room temperature), 65%RH ±20% humidity, 86kPa atomospheric pressure, exhaust
damper closed, and no sample load.
*² Protrusions excluded.



Click on the links below to download the associated PDFs.

Oven Overview

DF412/612 DH412/612 Catalog

Oven Accessories

Lab Ovens Buyer’s Guide

To download Operational Manual, visit our Technical Support Center

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All products come with a 1 year warranty.
Every product is made through environmentally conscious methods and remains eco-friendly all throughout its life cycle.