Michell Instruments VDS-3 Dew Point Generator
Michell VDS-3: −100…+20 °Cdp; ±0.5 °C; 3-stage MFC; USB/RS-485. RFQ.
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Fits controlled dew-point generation where you need a Michell Instruments VDS-3. Generator spanning −100 to +20 °Cdp with output stability ±0.5 °C, three-stage mass-flow controllers selecting wet/dry proportions plus liquid MFC with controlled evaporation, up to 13 presets with manual or automatic calibration programs, required gas supply 30 Nl/min @ 4.8 barg (moisture <13.8 ppbV), gas output 10 Nl/min @ 0.5 barg, USB and RS-485 control, 1 litre water reservoir, and 100–120 / 220–240 VAC at 500 W max.
Key advantages
- Range — −100 to +20 °Cdp
- Stability — ±0.5 °C
- Mixing — 3-stage MFC + VDS
- Presets — Up to 13; auto programs
- Comms — USB + RS-485
Typical applications
- Dew-point sensor calibration.
- Humidity generator benches.
- Lab moisture standards.
Selection guide
- Preset program
- Gas supply quality
- Line voltage
Common mistakes
- Wet supply gas.
- Flow below 30 Nl/min class.
- Ambient outside +10…+40 °C.
When to RFQ / what to tell us
- Voltage/options.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 46132 |
| Brand | Michell Instruments |
| Model | VDS-3 Dew Point Generator |
| Product type | Dew Point Generator |
| 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; documentation 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) |
| Communication | USB Type-B for PC control; RS-485 (9-way D) for setup |
| Power | 220–240 VAC or 100–120 VAC 50/60 Hz; 500 W max; 3-pin IEC; 3 A quick-blow fuse |
Documents
FAQ
Q: Range? A: −100 to +20 °Cdp.
Q: Stability? A: ±0.5 °C.
Q: What should I send for a quote? A: Voltage/options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| 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 |