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EnergyTech 101

Single Pass Opacity / Dust Monitor

A single-pass optical device which uses visible light to measure the opacity and dust within the flue gas


The EnergyTech 101 Opacity Monitors consist of a visible light transmitter and receiver arrangement with digital data processing in a local display unit.


The monitors can display data in either opacity, extinction or dust density in mg/m3 or normalised dust density in mg/Nm3. The EnergyTech 101 possesses four analogue inputs for normalisation data, temperature, oxygen, pressure and water vapour.

Features & Benefits

Typical Applications

Related Products

VCEM5100 - Flow Monitor
GCEM40 - Gas Analyser

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      EnergyTech 101 Specification

      Measuring unitsopacity, mg/m³
      Accuracy±0.2% opacity
      Ambient Temperature-20°C to +70°C
      Power Supply 76V to 265V AC @ 50/60Hz, 20VA
      Construction Corrosion resistant epoxy coated aluminium housing sealed to IP66
      Analogue outputs2 x 4-20mA current outputs, isolated, 500Ω load max. fully configurable from keypad
      Logic Outputs2 x volt-free SPCO contacts, 50V,1A max., configurable as alarm contacts
      1 x volt-free SPCO contact, 50V,1A max. for data valid
      Serial DataRS485

      For a full product specification please download the product brochure below.