- Dust Emission Measuring System

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The StackGuard continuously monitors the scatted light intensity of an extracted, withdrawn sample of gas. The laser light source minimized stray light and improves sensitivity to the µg/m³ level, the filtered purge air prevents from window soiling. A calibration check is performed by means of a checking rod. The sample air is led out of the stack, heated up above the dew point and then fed through the measuring cell.

  • The tried-and-tested measuring system for tough jobs, e.g. continuous monitoring of tiny concentrations in dry or wet and hot gases
  • Continuous measurement of particulate matter concentration via scattered light principle
  • Compliance with EN 14181
  • Automatic zero and span drift check and adjustment
  • Easy adjustment with checking rods
  • Highest sensitivity in range µm/Nm³
  • Certainty that neither the ring pipe nor the flow cell will become contaminated
  • Freedom from condensation, thus avoiding falsified readings and material wear

  • Uninterruptable power supply: 230 VAC / 195 W
  • Pre-fusing: max. 25 AT
  • Nominal range: 0 .. 100 PLA (Polystyrol-Latex-Aerosols)
  • Resolution: 0.0002 PLA
  • Power input: 5.5 kVA (basic version with 2 heaters)
    • +1.0 kVA per additional 1.0 kVA heater
    • +1.5 kVA per additional 1.5 kVA heater
    • +2.0 kVA per additional 2.0 kVA heater
  • Weight: ca. 240 kg (basic verson)
  • Scale ranges: max. 8 ranges between 0..0.05 PLA and 0..30 PLA other ranges on request adjustment range 1.0 PLA (mandatory item)
  • Interfaces: Profibus DP (optional), RS-232 diagnostic interface
  • Sample temperature: max. +170°C
  • Sample pressure: max. ±3'000 Pa (±30 mbar)
  • Sample flow rate: 790 .. 930 l/min @ 160°C
  • Connections: 2 x 0/4 .. 20 mA, max. 600 ohms, 5 x relais contacts max. 250 VAC, max. 4 A, digital in-/outputs max. 5 V
  • Protection: IP40, Additional weather protection required for outdoor installation
  • Ambient environment: -20 .. +50° C, 0 .. 99% rel. humidity, not condensing
  • Maximum service altitude: 3,000 m above sea level
  • Power supply: 3 x 340 .. 440 VAC, 50/60Hz

 

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