Usage and installation methods of pressure transmitters

Pressure transmitter is a commonly used industrial automation control equipment used to measure and convert pressure signals, and convert them into standard electrical signals for export, in order to monitor and operate pressure. Pressure transmitters are widely used in various pressure measurement and control places such as chemical industry, crude oil, natural gas, electricity, pharmaceuticals, food, etc. This article will provide a detailed introduction to the use and installation methods of pressure transmitters.

1. Usage of pressure transmitter

1. Pre construction inspection: Before using the pressure transmitter, check whether the model, specifications, range, accuracy and other parameters of the transmitter meet the requirements. At the same time, it is also necessary to check the appearance of the transmitter for damage, corrosion, and clean the installation method.

2. Selection of installation method: The installation method of the pressure transmitter should be selected around the measurement point as much as possible to ensure its reliability and stability. At the same time, the protection level of the transmitter and natural conditions such as temperature, humidity, and corrosion should also be considered.

3. Installation method selection: According to the actual situation, different installation methods such as flange connection, flange connection, and plug can be selected. Among them, flange connection is suitable for large-diameter pipelines and high-pressure places, flange connection is suitable for large-diameter pipelines and low-pressure places, and plug is suitable for liquid medium measurement.

4. Connection line connection: The connection line should be connected according to the wiring diagram of the transmitter, paying attention to the correctness and stability of the wiring, and ensuring the tightening of the wiring terminals.

5. Zero adjustment and optimization range: After installation, zero adjustment and optimization range operations should be carried out. Zero adjustment refers to the adjustment of the transmitter output signal to zero without pressure influence, and the adjustment range refers to the adjustment of the transmitter output signal to the required range.

6. Operation monitoring: After installation is completed, operation monitoring should be carried out to check whether the output signal of the transmitter is stable and accurate, and corresponding correction and optimization should be carried out.

2. Installation method of pressure transmitter

1. Selection of installation method: Similar to the operation method, the installation method should be chosen around the measuring point as much as possible to ensure its reliability and stability. At the same time, the protection level and natural conditions of the transmitter, such as temperature, humidity, corrosion, etc., should also be considered.

2. Installation method selection: According to the actual situation, different installation methods such as flange connection, flange connection, and plug can be selected. Among them, flange connection is suitable for large-diameter pipelines and high-pressure places, flange connection is suitable for large-diameter pipelines and low-pressure places, and plug is suitable for liquid medium measurement.

3. Preparation before construction: Before construction, necessary tools and materials must be prepared, such as wrenches, screwdrivers, flanges, gaskets, etc. At the same time, it is also necessary to check whether the model, specifications, range, accuracy and other parameters of the transmitter meet the requirements.

4. Installation steps: Install according to the following steps:

(1) Install the transmitter in the selected location and select the appropriate installation method as needed.

(2) Connect pipes or utensils, pay attention to tightening and sealing the connections.

(3) Wiring, wiring according to the transmitter wiring diagram, paying attention to the correctness and stability of the wiring.

(4) Adjust the range and zero, and make adjustments based on the actual situation.

(5) Check the output signal to ensure that the transmitter output signal is stable and accurate.

5. Post installation maintenance: After installation is completed, regular maintenance and testing must be carried out to check the appearance, wiring, sealing, and other conditions of the transmitter, and corresponding calibration and optimization must be carried out.