The 308 pressure transmitter uses a plane membrane to directly sense the pressure, and uses a special integrated module to realize accurate measurement and transmission of gas and liquid through fine temperature drift, zero point and nonlinear compensation. The whole machine has undergone strict assembly and testing, and this product has the characteristics of advanced design principles, complete varieties and specifications, and easy installation and use. Due to the complete integration of the most popular models in China in terms of appearance, in order to adapt to the continuous improvement and development of domestic automation level, this series of products not only has a compact and exquisite design, but also introduces intelligent functions with HART fieldbus protocol.

The process pressure is converted into an electrical signal by a pressure sensor, amplified by a differential amplifier and an output amplifier, and then converted into a 4-20mA standard current output signal linearly corresponding to the input liquid level through a V/A converter, which is converted into the magnitude of the pressure.

Installation matters

1. Install vertically below 0.03MPa to avoid affecting measurement accuracy;

2. During installation, a wrench should be used to tighten the transmitter from the hexagonal nut at the bottom of the transmitter to avoid directly turning the upper part of the transmitter, which may cause the connecting wire to disconnect;