ChangerTek
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| Brand | ChangerTek |
|---|---|
| Model | AW1000T |
| Origin | Shanghai, China |
| Detection Principle | Vapor Pressure Ratio (Equilibrium Relative Humidity Method) |
| Display | 5-inch capacitive touchscreen (480 × 854 px) |
| Interface | Chinese-language UI |
| Temperature Control | Integrated Peltier element |
| Temperature Range | Ambient to 50 °C (user-selectable, ±0.2 °C accuracy, 0.1 °C resolution) |
| aw Measurement Range | 0.000–1.000 aw |
| aw Accuracy | ±0.005 aw at 25 °C |
| aw Resolution | 0.001 aw |
| Sample Temperature Sensing | Non-contact infrared sensor |
| Equilibration Method | Dynamic vapor equilibrium acceleration |
| Calibration | Multi-point, up to 11 certified standard salt solutions (full-range traceable calibration) |
| Data Storage | 2000 test records with timestamp, sample ID, temperature, and aw value |
| User Management | Role-based access control (admin/operator) |
| Dimensions | 340 × 230 × 170 mm |
| Weight | 4.7 kg |
| Compliance | Designed for GB/T 23490, ISO 21807, AOAC 978.18, USP <1112>, FDA Guidance for Industry (Food Safety Modernization Act – Preventive Controls), HACCP prerequisite programs, and GMP-aligned documentation workflows |
| Brand | ChangerTek |
|---|---|
| Origin | Shanghai, China |
| Model | SVF-1000 |
| Pump Type | Oil-Free Diaphragm Pump |
| Ultimate Vacuum | −0.08 MPa (200 mbar) |
| Maximum Positive Pressure | ≤0.18 MPa (1.8 bar) |
| Air Flow Rate | 25 L/min |
| Dimensions (L×W×H) | 27×31×24 cm |
| Weight | 5.5 kg |
| Motor Power | 68 W |
| Input Voltage | 220 V, 50 Hz |
| Programmable Pressure-Vacuum Interval | 0.1–9.9 min |