Application Description

Resistance remote pressure gauges are suitable for measuring the pressure of liquids, vapors, gases, and other media that do not corrode copper and copper alloys. Due to the installation of a sliding line resistance transmitter inside the instrument, the measured value can be transmitted as an electrical value to a secondary instrument located far away from the measurement point, enabling centralized detection and remote control. In addition, this instrument can also indicate pressure locally for on-site process inspection.
In order to adapt to the different needs and requirements of the tested objects, this series of instruments has developed multiple models on the basis of the original ordinary and specialized models, including magnetic assisted, seismic resistant, corrosion-resistant, seismic resistant, and isolation devices.

Structural principle

This instrument consists of a spring tube pressure gauge and a sliding wire resistance transmitter. The working principle of the mechanical part of the instrument is the same as that of a general spring tube pressure gauge. Due to the fact that the resistance transmitter system is installed on the gear transmission mechanism, when the sector gear shaft in the gear transmission mechanism deflects, the rotating arm (brush) of the resistance transmitter is also deflected accordingly. As the brush slides on the resistor, the change in the measured pressure value is replaced by a change in the resistance value. And when transmitted to the secondary instrument, a corresponding reading value is indicated. At the same time, the primary instrument also indicates the corresponding pressure value.