Thermal Flow Switch Monitors
Our thermal dispersion flow switches are specifically designed for the harshest of applications in liquid or gas. They are both ATEX Exd certified and SIL2 rated.
Thermal dispersion technology measures the temperature difference between an active (heated) RTD and a reference (un heated) RTD. This is greatest in a no-flow condition and decreases as flow increases, cooling the heated RTD. Changes in flow velocity directly affect the extent to which heat dissipates and, in turn, the magnitude of the temperature difference between the RTDs.
An "in line" design, for low flow applications in gas or liquid.View product
Bespoke designs for a wide range of applications, pipe sizes from 1 ½ to 1m diameter.View product
The FS10i is a low cost, thermal flow monitor for liquids & gases, SIL2 compliant, ATEX certified with no moving parts.View product
A basic, general purpose flow switch for pipe sizes of > 1 ½"View product
Analyser / Sample flow monitoring
The advanced Model FS10A Analyser Flow Switch/Monitor represents the best-in-class, solution for continuously verifying flows within liquid or gas process analyser sampling systems.View product
AwiEco, Single Channel Biogas Analyser
Allison Engineering are the exclusive UK representative for Awite Gmbh. Awite are the market leader in Germany for Biogas and Bio-methane analysers with hundreds of successful installations.View product
The FS10 has been specifically designed for use in process analysers for liquid and gas flow detection.View product
Our Calibration Facilities
N.I.S.T traceable calibration facilities , the most sophisticated of any manufacturer of thermal gas mass flow meters.
FS10A – Calibration Movie
How to calibrate the FS10A in the field – Watch the movie
FS10A – Features Movie
An overview of the Key Features of the FS10A analyser sample flow monitor – Watch the Movie