LGM Reference gas mixer for field use


Gometrics Lean Gas Mixer takes a balance gas input and up to 3 standard gases. Can be delivered with no display and is operated from a PC. Battery option and hand grip for field use.

In both industrial and laboratory settings, there are processes requiring the handling of industrial gases.

One of the most frequent operations is the blending or mixing of two or more input gases from standard gas bottles. In order to do this, industries and labs are equipped with gas handling devices of greater or lesser complexity.

The LGM mixer designed by Gometrics takes a balance gas input and up to 3 standard gases. It comes with an optional battery and a suction hand grip for field use and has an internal pressure sensor to monitor the output pressure of the mixture at any moment. The homogeneity of the mixture is guaranteed by a patented mixing method.

The device allows the user to mix gases in the most suitable form for the application. The instrument can be delivered blind and without keyboard (when operating from PC) or with a simple human-machine interface to allow greater autonomy in field applications.

The LGM incorporates state of the art mass flow control technology.


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  • Controllable flow ranges per channel: maximum full scale from 8 sccm to 20 slpm
  • Material in contact: Stainless steel AISI-316, Teflon®, Viton®, Kalrez®.
  • Pattern: connection of up to 4 different gas cylinders and/or different concentrations
  • PC configuration and control software


  • Accuracy
  • Versatility
  • Simplicity of use
  • Portable
  • Fast response time
  • Easy to create mixes


  • Preparation of mixtures (binary, ternary, etc.)
  • Calibration of gas detectors and analyzers
  • Linearity studies of gas analyzers
  • Characterization of gas sensors
  • Preparation of controlled atmospheres for analysis
  • Research and development

Technical specifications

Working maximum pressure Consult
Nominal power supply pressure 1 MPa max (10 bar) – 250 kPa min (2,5 bar)
Input 2 standard channels simultaneously active (3 or 4 optionnal)
Supply gas Configurable gas type, configurable components
Power supply 100-260 VCA, 100W, 50/60 Hz
Materials in contact Stainless steel AISI-316, Teflón®, Viton®, Kalrez®
Mass flow Use of mass flow controllers of médium/high performance.
The standard version is delivered with a total of 2 mass flows (1 for balance gas and 1 for reference gas)Scalable capacity
Maximum output flow (mix) Up to 20 slpm (air) depending on configuration
Accuracy and repeatability per channel +/-0.5% reading +/- 0.1% F.E.
Connections a 1/4” o 1/8” NPT Swagelok®
Power supply standard socket
Weight 10 kg (aprox.)
Dimensions 250 mm x 210 mm x 370 mm (w x h x d)

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