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JUM 109L CH4/NON-CH4 HTD.FID H Get Quote



The model 109L analyzer made by J.U.M. Engineering is a compact, heated unit for detecting methane concentrations to EPA Method 25. Model 109L has been designed for applications such as stack gas emissions monitoring, ambient air monitoring to low concentration levels, thermal reactor and combustion emissions monitoring, and raw automotive and diesel exhaust analysis. The dual detector, dual electrometer design provides real-time analysis of methane only (CH4), total hydrocarbons including methane (THC) and total hydrocarbons less methane (NMHC). Individual analog outputs and digital front panel meters are provided for all three gases. The sample pump, sample filter and all pressure and flow regulating components are built in, so additional sample handling equipment is not needed. Note: The model 109L analyzer uses hydrogen fuel, which is a purchased item.

Key Features

  • EPA Methods 25A and 503
  • 0 to 100,000 ppm in five ranges

Technical Specifications

Range 0 to 10, 100, 1000, 10,000, 100,000 ppm
Detector Flame ionization detector (FID)
Sensitivity Max. 1 ppm CH4 full scale
Response Time 90% of full scale in 1 second (THC), 4 seconds (NMHC)
Zero Drift 1.5% of full scale per 24 hours
Span Drift 1.5% of full scale per 24 hours
Linearity Within 1%
Power 110V 60Hz
Output 0 to 10V DC


  US Metric
Dimensions 5.19 x 19\" x 18\"\" 132 x 483 x 457 mm


  US Metric
Weight 41 lbs 18.6 kg