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D-R 300 Scattered Light Monitor

Brand: Durag

The D-R 300 operates according to the scattered light method. 

The modulated light from a halogen lamp illuminates the dust particles in the exhaust duct. 

The scattered light reflected from these particles is measured and assessed.
Features
  • In-situ measurement directly in the flue gas flow
  • Automatic system tests and correction of measured values
  • Self-calibration in 4-h cycle
  • Optics and electronics in a hermetically sealed unit - no smoke gas can enter device
  • Maintenance-friendly, thanks to optimal purge air conduction in front of the heated optical end plates
  • Direct access to all parameters via the operator display.

Specifications

Brand

Accuracy

  • Detection Limit: < 1 % Measuring Range

Ambient Temperature Range

  • -20° to 50° C (-4° to 122° F)

Applications

  • Fine Dust Measurements in Processes
  • Furnaces Designed for Light Fuel Oil

Approvals & Certifications

  • MCERTS

Approvals & Certifications

  • CE
  • TÜV Test Report 936 / 800002

Diameter

  • Duct: 11.8 to 157.5" (300 to 4,000 mm)

Environmental Protection

  • IP55
  • IP65

Flow Rate

  • Purge Air Quantity: Approximately 80 m³/hour

Output

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

Power Supply

  • 115-230 Vac, 50/60 Hz, 50 VA

Pressure Range

  • Flue Gas - psi: -0.72 to 0.29 (kPa: -5 to 2, bar: -0.05 to 0.02)

Process Temperature

  • 0° to 500° C (32° to 932° F)
  • Flue Gas: 0° to 320° C (32° to 608° F)

Relay Output

  • Permissible Load: 0.5 A at 48 V

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