Choose the method of pressure points pressure transmitter - Shanghai dragon instrument electric appliance co. , LTD

Why want to write this article, a separate pressure transmitting machine pressure points, due to the pressure transmitting machine pressure points choice related to pressure measurement accuracy and stability. Pressure transmitting machine depends on the accuracy of the measurement in large level analog machine, the correct device measuring tube and the pressure parts. In some places, the electric device pressure transmitting machine can be directly on the process piping, without setting up support, in the process piping directly device is the condition of process temperature and environmental temperature should be agree with same time, the applying condition of the machine. Pressure from the source device for parts on the degree and the tilting process piping, bearing pressure points should agree with the following rules: give pressure machine selection pressure point to agree with the following rules: measurement of gas pressure, the pressure points should be in the upper part of the process piping. Measurement of liquid pressure, the pressure points should be the lower part of the process piping and the extent of the process piping centerline to 0 ~ 45 ° Angle range. Measurement of steam pressure, pressure points in the process piping of the center line of the upper and the lower part and the degree of the process piping, into 0 ~ 45 ° Angle range. Pressure source component installation position, should choose in the process of medium flow stability of beam section. Take pressure source components and temperature source components in the same line, take pressure source components should be device on the upstream side of the temperature source pieces. Take pressure source components should not excess the end of process equipment and process of the pipe wall. Seven, measurement on vertical piping with dust and solid particles or sediment turbid medium such as pressure, take source components should be tilted upward device, and the degree of line should be greater than 30 degree Angle. In the appropriate on the degree of process piping upstream beam into acute device.