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| Brand | Derui Testing |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DR-H202-V25 |
| Quotation | Upon Request |
| Internal Dimensions (W×D×H) | 2500 × 2200 × 2000 mm |
| Temperature Range | −40 °C to +150 °C |
| Temperature Uniformity | ±2 °C |
| Temperature Control Resolution | 0.1 °C |
| Heating Rate | 3 °C/min |
| Brand | DERUI TESTING |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DR-ZB206A |
| Power Supply | AC 220 V ±5%, 50 Hz |
| Accuracy | ±0.1 s |
| Measurement Range | 0–9999 s (three ranges: 1–15 s, 15–300 s, 300–9999 s) |
| Test Area | 10.00 ±0.05 cm² |
| Timing Accuracy | ≤±1 s over 1000 s |
| Vacuum Chamber Volume | Large chamber: 380 ±1 mL |
| Small chamber | 38 ±1 mL |
| Vacuum Setpoint Range | Range I & II: 50.66–48.00 kPa |
| Range III | 50.66–29.33 kPa |
| Air Ingress Volume | 10.00 ±0.20 mL (large chamber), 1.00 ±0.05 mL (small chamber) for pressure drop from 50.66 kPa to 48.00 kPa |
| Applied Pressure | 100 kPa ±2 kPa |
| Display | 7-inch color TFT touch screen with bilingual (Chinese/English) menu interface |
| Operating Environment | 5–35 °C, RH ≤85% |
| Dimensions | 318 × 362 × 518 mm |
| Weight | 47 kg |
| Compliance | GB/T 456, ISO 8791-2, TAPPI T479, ASTM D5263 |
| Brand | Derui Testing |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DR-D201-225E |
| Temperature Range | −60 °C to +150 °C |
| Refrigeration Method | Compressor-Based Cooling |
| Explosion-Proof Design | Yes (Class I, Division 1 compliant per GB/T 3836.1–2021) |
| Temperature Fluctuation | ±0.5 °C (empty chamber) |
| Temperature Deviation | ±2.0 °C (loaded, steady-state) |
| Temperature Uniformity | ±2.0 °C (empty chamber) |
| Heating Rate | ≤60 min (−60 °C to +150 °C) |
| Cooling Rate | ≤45/60/80 min (varies by target temperature span) |
| Interior Dimensions | 500 mm × 750 mm × 600 mm (W × H × D), dual-layer configuration |
| Effective Volume | 225 L (total, split across two independent zones) |
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