Pressure transmitters play an important role in the field of instrumentation and instrumentation. Pressure transmitters are extremely versatile and their classification is very numerous and very detailed. When choosing a pressure transmitter, users must choose their own combination of their actual application and product characteristics to avoid blind selection. Pressure transmitters, such as high temperature resistance, stable performance, and other characteristics, determine its wide application and play an important role in the field of instruments, meters and industrial automation.
At the same time when choosing a pressure transmitter, long-term stability indicators need to be considered. The so-called compensation temperature range is the temperature range of the measurement medium during normal operation, and the use temperature range is the maximum temperature range that may occur during use. Generally, it is slightly greater than the required temperature. range. If you want to measure the differential pressure must choose the differential pressure transmitter to determine the accuracy range, the compensation temperature range, the use of temperature range according to the minimum accuracy you need to measure, generally choose slightly higher than the required minimum differential pressure transmitter products.
When the pressure transmitter and pressure sensor are connected to the pressure guiding tube in the application, it is usually necessary to disconnect the pressure guiding tube, the pressure transmitter and the pressure sensor, and then connect the pressure source for calibration. However, this operation is very troublesome, which is very troublesome and time-consuming and wastes labor. It is also necessary to worry about whether the pressure pipe can be broken or leaked when the connector is disassembled.
Calibration of the conventional pressure transmitter and pressure sensor: First adjust the damping to zero state, first adjust the zero point, then fill the pressure full range, so that the output is 20mA on-site adjustment to speak fast, this introduces the zero, range fast Adjustment method.
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