Working Characteristics of Ultrasonic Gas Meter

Of course, gas heating metering is only a microcosm of the problem, and most commercial and industrial users of gas generally have similar problems. Due to its all-electronic structure, the ultrasonic gas meter has no mechanical transmission part, no mechanical noise in operation, is not affected by mechanical wear and failure, has no magnetic induction components, and the measurement is not easily affected by the magnetic field. , repeatability, life, maintenance, and intelligent expansion have unparalleled advantages. Ultrasonic gas meters have high precision (accuracy above the boundary flow point is ±0.5%, accuracy below the boundary flow point is within ±1%) and good repeatability, especially the measurement accuracy at the boundary flow point. Compared with membrane gas meters, there is Great improvement. Intelligent integration, because the ultrasonic gas meter is an all-electronic structure, it is easier to expand the intelligent integration. Optional GPRS module, which can be expanded as an Internet of Things gas meter; optional IC card reading and writing module (IC card can choose non-contact card, logical encryption card or CPU card), which can be expanded as a prepaid gas meter; optional short-distance wireless The module can be expanded into a short-distance wireless remote meter, and supports temperature and pressure compensation at the same time. Anti-theft, the ultrasonic gas meter adopts time difference measurement, regardless of the left and right meters, and automatically recognizes the direction of gas flow. The inverted meter can still measure with high precision, and record the time and consumption at the same time. The watch has a watch removal detection function. According to the different propagation speeds of ultrasonic waves in different media, the ultrasonic watch can identify abnormal watch removal actions and record the time of watch removal. The watch has the function of anti-counter destruction. The ultrasonic watch does not have any mechanical moving parts, and there is no mechanical counting wheel. The means of destroying the counter and stealing gas used by users for ordinary membrane watches cannot be applied. The ultrasonic meter has the function of anti-punching. The measurement method of the ultrasonic gas meter is a quick measurement type. There is no gas chamber in the ordinary film meter, so it is impossible to punch holes to steal gas. The meter has the function of anti-magnetic interference. The ultrasonic gas meter is an all-electronic meter without magnetic conduction devices and is not affected by magnetic fields. Safer, the ultrasonic gas meter can have a built-in safety function module, which can detect abnormal flow (ultra-large and ultra-low flow, constant current overtime use, etc.), which enhances the safety of the gas meter. The gas meter automatically judges the abnormal flow and duration during use, and realizes the ultra-large and ultra-small flow detection, and the constant current overtime judgment function. All kinds of flow abnormalities caused by it can be automatically shut down instantly, which can enhance the safety of indoor gas use and improve the safety performance of the gas meter during use.

At the same time, it should be noted that ultrasonic gas meters can only be used to measure relatively pure gas