Gas Mixtures and Gas Dilution
Litre Meter specialise in the design, manufacture and supply of flowmeters. Within the range of flowmeters that we distribute are the Sierra, KEM and Ritter flow meters. Sierra are the only flowmeter company in the world who manufacture capillary mass flow meters as well as industrial insertion meters based on thermal flowmetering principles. KEM manufacture turbine meters for gas. Ritter only manufacture gas meters including the laboratory grade MGC, TG series and Bellows Gas meters. Listed below are all the flow meters within our range that are suitable for gas mixtures and dilution:
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Thermal Mass Capillary Meter
The Capillary Thermal principal of operation is based on heat transfer and the first law of thermodynamics. During operation, process gas enters the instrument’s flow body and it divides into two flow paths. The vast majority of the gas flow passes through the Laminar Flow Element (LFE) bypass. A very small portion of the total flow is diverted through a small “Capillary” sensor tube with an ID between .007 to .028 inches. This technology is ideal for gas flow measurement and gas flow control. Flowmeter accuracy: ±1% of full scale. From 0.1 to 4 sccm up to 1000 slpm.
Thermal Mass Industrial Meters
The immersible thermal sensor is completely immersed into the flow stream. As a result, immersible thermal mass flow meters measure much higher gas mass flow rates in harsher environments than capillary thermal mass flow meters. There is very little pressure drop across an immersible sensor, and the flow does not have to pass through the LFE as it does with a capillary thermal mass flow sensor. Available from Sierra in either inline flow bodied or insertion flowmeter styles. In-line mass flow meters from 0 to 0.7 nm³/h to 0-20000 nm3/h, +/-1% of reading; insertion flowmeters up to 72″, +/- 2% of reading.
Ritter Gas Meters
Ritter manufacture a range of gas meters including the TG series drum-type, BG series bellow type and the unique MGC Milli Gas Counter.