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Yamato DF & DH Series High Performance Programmable Fine Ovens
DF412/612 DH412/612
Description
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
| Model | DF412 | DF612 | DH412 | DH612 |
|---|---|---|---|---|
| System | Forced air circulation and ventilation | |||
| Operating temp. range*¹ | Room temp. +15~260°C | Room 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 system | PlD Z control | |||
| Temp. setting method | Digital setting by ▲/▼ key | |||
| Temp. display method | 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 display range | Fixed value operation for 1 min. to 99 hrs. 59 mins. 24 hr time system: clock operation | |||
| Operation functions | 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 | |||
| Sensor | K thermocouple (double sensor) | |||
| Heater insulator | SUS pipe heater with fan | |||
| Heater capacity | 2.1 kW | 3.0 kW | 2.7 kW | 3.75 kW |
| Blower fan (motor) | Axial fan (capacitor type motor 20W) | |||
| Cable port | I.D. 33 mm x 1 pc. (rear) | |||
| Interior / exterior material | Stainless steel/ Chrome-free electro-galvanized steel sheet metal, chemical-proof baked on finish | |||
| Door | Single swing (left side) | |||
| Exhaust port | Automatic exhaust damper I.D. 80 mm (rear panel) | |||
| Heat insulator | Glass wool | |||
| Heater circuit control | Triac with zero-crossing method | |||
| Earth leakage breaker | 15A | 20A | 20A | 30A |
| Leak current/short circuit / Over-current protection, rated current sensitivity 30mA | ||||
| 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) | |||
| Internal dimensions*² W×D×H | 450×450×450 mm | 600×600×600 mm | 450×450×450 mm | 600x600x600 mm |
| External dimensions*² W×D×H | 1050×630×850 mm | 1200×780×1000 mm | 1050×630×850 mm | 1200×780×1000 mm |
| Internal capacity | 91L | 216L | 91L | 216L |
| Shelf max. load | ~30kg / pc. | |||
| Shelf support qty. / pitch | 9 steps / 45mm | 9 steps / 60mm | 9 steps / 45mm | 9 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 |
| Shelf / bracket | 2 pcs / 4 pcs | 3 pcs / 6 pcs | 2 pcs / 4 pcs | 3 pcs / 6 pcs |
*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.
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