Description
The LFGM is used to measure small volumes of gas produced, usually due to biological action, over a long period of time. A typical example is the gas produced from a digester.

A volume of gas is measured through an automatically syphoning measurement chamber. Each time the chamber syphones the display increments 1 volume of gas. The chamber volume is between 45 and 55 ml, each unit is individually calibrated.

The maximum flow rate is 30 lpm and the minimum pressure required is 40mm water gauge.