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| Product Name | Large Low-temperature constant-temperature |
|---|---|
| Weight | 1.000000 |
| Technical Data | ||
|---|---|---|
| Specification | BB401 | BB601 |
| Product code | 221620 | 221621 |
| Temp. control range | -30~80°C (when refrigeration unit set ≤40°C) | |
| Temp. control accuracy / fluctuation | ±0.1°C (JTM K05), 1.2°C (JIS) at 20°C | ±0.1°C (JTM K05), 1.4°C (JIS) at 20°C |
| Temp. distribution accuracy / gradient | ±0.3°C (JTM K05), 1.0°C (JIS) at 20°C | ±0.3°C (JTM K05), 1.8°C (JIS) at 20°C |
| Temp. display unit | 0.1°C | |
| Cooling capacity | ~475W (408kcal/h) at 15°C | ~750W (645kcal/h) at 15°C |
| Operation functions | Constant value, auto-stop, auto-start | |
| Sensor | Dual sensor: Pt100Ω platinum resistance thermometer (temp control) + K-type thermocouple (over-temp protector) | |
| Temp. setting/display | Digital setting/display | |
| Refrigeration unit/refrigerant | Air-cooled 350W, R404A | Air-cooled 600W, R404A |
| Circulation capacity (50/60Hz) | Max flow: 2.8/3.2 L/min (jet agitation), Max head: 1.1/1.4m | |
| Heater | 850W | 1.2kW |
| External circulation nozzle | φ10.5mm hose nipple (outlet & return, both) | |
| Operating ambient temp. | 5~30°C | |
| Safety devices | Self-diagnostic function, overcurrent leakage breaker, refrigeration overload relay, refrigeration pressure detection, dry-run prevention float switch, refrigeration protection delay timer, auto over-temp prevention, key lock, over-temp protector | |
| Other functions | Drain cock, condenser filter, RS-485 external communication, temp. output terminal (4-20mA), refrigeration pressure indicator, calibration offset, power outage compensation | |
| Tank dimensions | W250×D315×H190mm | W330×D435×H200mm |
| Effective tank dimensions | W220×D150×H160mm | W300×D285×H170mm |
| Tank capacity | 13L | 26L |
| External dims*² | W420×D550×H885mm | W440×D650×H885mm |
| Power source (50/60Hz), rated current | AC100V, 13.8/12.5A (20A) | AC100V, 20/19A (30A) |
| Weight | ~65kg | ~80kg |
| Accessories | Drain hose 0.5m ×1, overflow hose 0.5m ×1, lid ×1, shelf board ×1 | |
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