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| Brand | HESON |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | HS-408A (Large-Scale High-Low Temperature Environmental Test Chamber) |
| Temperature Deviation | ±2.0°C |
| Heating Time | ≤60 min (from 20°C to 100°C) |
| Cooling Time | ≤40 min (to −20°C) / ≤60 min (to −40°C) / ≤80 min (to −70°C) |
| Temperature Range Options | A: −20°C to +150°C |
| B | −40°C to +150°C |
| C | −70°C to +150°C |
| Humidity Range | 20–98% RH |
| Temperature Uniformity | ±2.0°C |
| Temperature Fluctuation | ±0.5°C |
| Heating Rate | 1–3°C/min |
| Cooling Rate | 0.7–1.0°C/min |
| Internal Dimensions (W×D×H) | 600 × 800 × 850 mm |
| Internal Material | SUS#304 Stainless Steel |
| External Material | SUS#304 Stainless Steel + Powder-Coated Finish |
| Insulation | High-Density PU Foam with Vacuum-Sealed Layer |
| Control Resolution | 0.01°C |
| Temperature Control Accuracy | ±0.3°C |
| Power Supply | AC 380V ±10%, 50 Hz, 3-phase 4-wire |
| Communication Interface | RS-232 with PC-compatible control software |
| Safety Protections | Leakage current cutoff, compressor high-pressure/overheat/overcurrent protection, fan overheat protection, fuse overload protection, audible alarm |
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