EnCal 3000 Biogas

The Honeywell EnCal 3000 Biogas analyzer, or a gas chromatograph, has been engineered for custody transfer of treated biogas.

Biogas Analyzer by Honeywell Elster- Instromet

The Honeywell Elster-Instromet EnCal Biogas utilizes chromatograph components, based on state-of-the-art MEMS technology (microelectronic and microelectromechanical systems) and capillary columns. It is highly accurate and reproducible. The compact gas chromatograph analyzes its hardware, electronics, gas sample lines, and route selection.

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Features & Benefits

Analysis cycle - 5 minutes

FM Class I, Div. 1 Group B, C, and D

Analytical Hardware

  • 2 parallel isothermal GC modules with narrow-bore capillary column technology in combination with MEMS-based analytical
  • One of the channels uses a molecular sieve column which is protected against CO2 and water by two filter cartridges that filter both the carrier gas and the sample gas

Analysis Output - Full composition of biogas as specified below, heating value, density, Wobbe index

Gas Compositions – refer to the product specs

Performance heating value measurement

  • Uncertainty - <0.20 % for all calculated properties (based on a single point calibration)
  • Repeatability - <0.03 % for all calculated properties


  • Ethernet UTP 10 Base-T for Modbus TCP/IP and PC link
  • Two RS 232/485 ports for Modbus RTU or ASCII
  • 3 analog Inputs for local sensors (4-20 mA or 0-10 VDC)

Data logging

  • History Log: local storage of last 35 days of all analytical data (analysis, events, alarms, averages, last chromatogram, calibration data) in accordance with API Report 21.1.
  • All data available on remote workstation in XML format


Download EnCal 3000 specifications
FM Class I, Div. 1 Group B, C, and D