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VEREWA F-904-20 Dust Concentration Monitor

Brand: Durag

Dust monitor especially for wet flue gases and for the monitoring of blast furnace gas. 

Exhaust gas laden with particles is extracted from the duct and diluted. 

The sampling gas passes a filter. AC source irradiates the particle laden filter spot. 

The absorption by the dust is measured and compared with the empty filter spot.
Features
  • Automatic zero correction
  • Pre-calibrated, unaffected by particle size, colour or moisture
  • Isokinetic sampling
  • Measurement of very low dust concentrations

1 - 2 of 2 Part Numbers
F-904-20
F-904-20
  • Product - Standard
F-904-20/BFG
F-904-20/BFG
  • Product - Special Design
1 - 2 of 2 Part Numbers

Specifications

Brand

Ambient Temperature Range

  • 0° to 40° C (32° to 104° F)

Applications

  • Coal & Oil-Fired Power Stations
  • Dust Concentration Measurements in Process Applications
  • Emission Dust Measurement after Wet Scrubbers or in Very Wet Exhaust Gases
  • Emission Dust Measurement in Inaccessible Flues with Small Diameter
  • Heavy Metal Analysis
  • Sewage Sludge Incineration Plants
  • Waste Incineration Plants (Municipal Waste, Industrial Waste & Hazardous Waste)

Approvals & Certifications

  • CE
  • TÜV Test Reports: 3.5.2 / 209 / 88-338529 & 252 / 740 / 94577412

Diameter

  • > 19.6” (500 mm)

Environmental Protection

  • IP43

Measuring Range

  • 0 to 500 mg/Nm³
  • Detection Limit: < 0.1 mg/Nm³

Output

  • 2 x 0-20 mA / 500 ohms
  • 2 x 4-20 mA / 500 ohms

Power Supply

  • 115/230 Vac, 50/60 Hz

Pressure Range

  • Flue Gas - psi: -1.45 to 1.45 (kPa: -10 to 10, bar: -0.1 to 0.1)

Process Temperature

  • Flue Gas: 0° to 250° C (32° to 482° F)
  • Flue Gas: 0° to 500° C (32° to 932° F)

Relay Output

  • Permissible Load: 24 V / 25 VA

Supply Pressure

  • Purge Air - psi: 87.02 to 116 (kPa: 600 to 800, bar: 6 to 8)
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