A gas meter pump is an important piece of equipment that measures your home or commercial establishment’s gas consumption. These devices are useful in billing purposes and detecting unusual usage or possible tampering. They are also a vital safety device in areas where the atmosphere can be toxic or dangerous, such as manure pits.
There are several different types of gas meters, but diaphragm, rotary, and turbine meters are most commonly installed. These meters measure the volume of natural gas consumed by measuring the linear displacement of a piston within the meter’s chambers. Each time the piston moves, it is recorded by a counter mechanism. This information is then converted into a readable signal.
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Other types of gas meters work by measuring velocity. Rotary meters have two figure “8” shaped rotors that spin in precise alignment to record the amount of gas passed through the meter. Velocity meter models feature rotating cups or vanes that power a generator or drive a series of recording registers. A Coriolis meter uses a physical phenomenon to determine mass flow by measuring the speed of sound waves in flowing gases.
Many people believe that a gas detector without a pump is less accurate, slower to respond or simply doesn’t detect as much gas. However, this is false. The pump draws a sample of gas into the monitor, which helps to make it more responsive, but the sensors still only detect the gases that they come in contact with.