AMS INSTRUMENTATION is distributing the ST51 Mass Flow Meter from Fluid Components International, an explosion-proof instrument, which can measure coal mine methane emissions.
According to AMS Instrumentation, the ST51 Mass Flow Meter has a thermal dispersion mass flow sensing element with no moving parts. This means it can provide direct mass flow measurement of gas without the additional equipment required with other flow measurement technologies.
AMS Instrumentation says the ST51 Mass Flow Meter has a non-clogging sensor design, which operates over a wide flow range with low-flow sensitivity. Its calibration is matched to the user’s actual gas composition and installation conditions.
According to AMS Instrumentation, coal mining operations are a major contributor to the greenhouse gas pollution causing global warming. The three major sources of coal mine methane are degasification systems (drainage) both pre-mine and gob, ventilation air (VAM) and abandoned or closed mines.
This coal mine methane gas is an increasingly attractive fuel source for electric power. The methane will also need to be precisely measured if a carbon trading system is brought in.
The ST51 Mass Flow Meter features an insertion-style flow element with a broad flow range from 0.08 to 122MPS, accuracy to one per cent of the reading and repeatability of 0.5% of the reading. It is suitable for line with diameters from 51 to 610mm.
The ST51 Mass Flow Meter operates at temperatures from -18 to 121 degrees Celsius and withstands pressures up to 34 bar.
According to AMS Instrumentation, the ST51Mass Flow Meter’s flow transmitter is also available in a remote mount configuration that can be mounted up to 15m away from the flow element inserted the pipe. All components are housed in an aluminium enclosure that meets the NEMA 4X and IP-67 requirements.