ENVEA

- Model LGD 2M - Laser Gas Detection Module NH3 (TDLS)

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Rack 3U monitor using the TDL extractive technology to measure online the NH3 pre and/or post catalyst: SCR (Selective Catalytic Reduction) or SNCR (Selective Non-Catalytic Reduction) ENVEA is offering Laser Gas Detection (LGD) modules with exceptional advantages and value for the customer. Tunable Diode Laser Spectrometry (TDLS), enhanced by proprietary technology, is used for the measurement of CO2, NH3, CH4, HCl, (H2O).

  • Made for easy integration by OEMs
  • Optical, contact-less measurement
  • Accurate laser-diode electro-optics
  • High selectivity
  • Fast response
  • Self-contained
  • Continuous sensor status monitoring
  • Low maintenance
  • Low cost-of-ownership
  • 10-30V power supply
  • Digital and analog data interfaces
  • Hot-gas measurement up to 190°C

  • Process control: SCR, incineration & combustion processes,
  • Emission monitoring: Power generation, engine development, waste incineration furnaces,
  • Environmental monitoring: Landfill & green-house gases, livestock,…
  • Chemical engineering: Production control & monitoring …
  • Safety: Leak detection, refrigeration, toxic gases,
  • Climate control & monitoring: Livestock, climate chambers & rooms,…

  • Gas: NH3
  • Principle of detection: Tunable Diode Laser Spectrometry (TDLS)
  • Ranges: 0-100 / 0-20 ppm
  • Precision 2σ:
    • 1.8 ppm @ 1 s integration
    • 0.8 ppm @ 10 s integration
  • Response time: < 2 sec (T90) (at gas flow rate of 3 L/min)
  • Zero drift: below accuracy / 24 h
  • Span drift: below accuracy / 24 h
  • Linearity: included in the accuracy
  • Cell temperature range: 190°C
  • Operating temperature: +15 to +50°C
  • Communication: RS 232
  • Dimension: Rack 19″ – 4U

  • European Conformity: Low voltage EMC compatibility:
    • CE 2006/95/EG
    • 2004/108/EG
  • Safety of laboratory products: EN/IEC 61010
  • Safety of laser products: EN/IEC 60825-1
  • EMC: EN/IEC 61326-1
  • Shock: EN60068-2-27
  • Vibration: EN60068-2-6
  • Electronics conformity: RoHS / WEEE

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