VisGuard In-situ Visibility Monitor
Giá bán: Liên hệ
Hãng sản xuất: Photometer VietNam
Danh mục: Thiết bị đo lường & Kiểm tra
Nhà cung cấp: Anh Nghi Son
Xuất sứ:
0911472255- Easy to service, high sensitivity, stability and accuracy
- Easy zero-point checking, even when visibility is poor
- A special sample flow concept entirely eliminates the danger of flow cell contamination
- Easy calibration check with checking rod, even at high dust levels
- Continuous monitoring of visibility using scattered light principle
- Dual-beam method
- Operation via local control unit or central multi-channel control unit
- Installation in tunnel tube or niche
- Optional sample heater: Choice of measurement with/without fog compensation
The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Installations are either in the tunnel cavity/niches (in-situ) respectively using extractive sampling away from the cavity. An optional sample heater eliminates the influence of any mist effects.
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Nominal range |
0 .. 100 PLA (Polystyrol-Latex-Aerosols) |
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In-situ |
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Scale ranges |
0 .. 15 · 10-3 E/m |
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Protection |
IP65 |
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Sample temperature |
-20 .. +50 °C |
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Sample pressure |
max. ±3'000 Pa (±30 mbar) |
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Interfaces |
RS232 or Profibus DP |
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Ambient environment |
Temperature range -20 .. +50°C |
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Maximum service altitude |
3,000 m above sea level |
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Power supply |
85 .. 264 V / 47 .. 440 Hz |
