Optical Methane Detector

The Optical Methane Detector (OMD™) is designed to increase measurement speed and accuracy when performing mobile inspections of buried natural gas distribution, transmission, and gathering pipelines. Containing no moving parts, the OMD can be front mounted on a vehicle and calibrated by the driver or technician from inside the vehicle. OMD uses infrared technology, eliminating potential hazards such as explosive calibration gases. The OMD can detect leak indications in concentrations of less than 1 part per million (ppm) at 10,000 measurements per second. Data can be sent to a data logger or translated to a ground positioning satellite (GPS) system.

Key Features

  • Mounted on the front of a survey vehicle.
  • Employs an infrared (IR) light beam.
  • Optical filter transmits methane at IR wavelengths.
  • Instantaneous audio and visual signal for methane presence.
  • Detects leak indications in concentrations of less than 1 part per million (ppm) at 10,000 measurements per second.
  • It operates reliably under various environmental conditions (-20º oF to +110º oF).
  • Sensitivity is not affected by fluctuations in light beam caused by dust, dirt, water, or snow.
  • Internal calibration check cell for operator verification and alerts

Technical Specifications

  • Double-ended configuration.
  • Sensitivity: 1 PPM/meter CH4 at 25 MPH.
  • Measurement range: 1 to 200 PPM.
  • Display ranges: 10, 30, and 90 PPM.
  • Self-test during boot-up.
  • Calibration test via operator, self-contained.
  • System power: 60 watts at 12 VDC.
  • System voltage: 10-16 VDC.
  • System weight: Sub-Systems: 17 pounds, power box: 6 pounds, cables: 4 pounds, internal display: 3 pounds.
  • Mechanical mounting: Strut bracket mount.
  • Installation time: 2 hours (typical).
  • External housing rating: NEMA 35 and IP 54; display housing spill-proof.
  • Environmental PCB control: conformal PCB coating.
  • Operating temperature range: -22 oF to 122 oF; operating humidity range: 5 to 100% RH.

Installation and Operation:

  • Simple installation on various survey vehicles.
  • All cables are provided, including power cable for operation from the vehicle’s 12-volt battery.
  • RS232 port available for connection to a personal computer for data acquisition and saving.
  • Calibration and baseline compensation via RS-232 through software.
  • Backlit 1.5” x 5.125” graphics LCD display.
  • Sealed membrane switch overlay for operator interface.
  • Audible alarms with adjustable setpoints.
  • High pitch signal increases with concentration; low pitch for errors.

Product Brochure

By meeting stringent technical specifications and delivering superior performance, Hetek Solutions Optical Methane Detector provides a reliable solution for gas detection needs across various industries. Contact us to learn more.

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