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Michell Instruments
Michell Instruments VDS3 Computer-Controlled Dew-Point Generator
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Ключевые параметры
Communication
USB Type-B for PC control; RS-485 (9-way D) for setup
Dew Point Range
−100 to +20 °Cdp (−148 to +68 °Fdp); factory presets at 10 °C intervals from −100 to +20 °C
Output Stability
±0.5 °C (±0.9 °F)
Mixing
Three-stage mass-flow controllers selecting wet/dry proportions; liquid MFC + controlled evaporation (VDS)
Presets
Up to 13 presets; manual or automatic calibration program
Required Gas Supply
30 Nl/min @ 4.8 barg; moisture <13.8 ppbV (−100 °C atmospheric dew point)
| Параметр | Значение |
|---|---|
| Communication | USB Type-B for PC control; RS-485 (9-way D) for setup |
| Dew Point Range | −100 to +20 °Cdp (−148 to +68 °Fdp); factory presets at 10 °C intervals from −100 to +20 °C |
| Output Stability | ±0.5 °C (±0.9 °F) |
| Mixing | Three-stage mass-flow controllers selecting wet/dry proportions; liquid MFC + controlled evaporation (VDS) |
| Presets | Up to 13 presets; manual or automatic calibration program |
| Required Gas Supply | 30 Nl/min @ 4.8 barg; moisture <13.8 ppbV (−100 °C atmospheric dew point) |
| Gas Output | 10 Nl/min @ 0.5 barg (7.3 psig) |
| Water Reservoir | ABS, 1 litre capacity |
| Power | 220–240 VAC or 100–120 VAC 50/60 Hz; 500 W max; 3-pin IEC; 3 A quick-blow fuse |
| Operating Temperature | +10 to +40 °C (+50 to +104 °F) |
| Enclosure | Painted diecast aluminum with smoked glass door; 1020 × 555 × 600 mm (H×W×D) |
| Weight | 65 kg (143 lb) maximum |