It is equally important to select and maintain riot pressure transmitters

How to combine practical and practical anti-riot pressure transmitters:

1. Type of pressure measurement: Pressure type mainly includes absolute pressure, gauge pressure, differential pressure, etc.; gauge pressure refers to the pressure based on atmospheric pressure, which is less than or greater than atmospheric pressure; absolute pressure refers to the absolute pressure zero as the benchmark. , pressure above the positive pressure zero; differential pressure is the difference between the two pressures.

2. Accuracy level: The measurement error of the transmitter is divided according to the accuracy level. In the actual use process, it is selected according to the requirements of measurement error and in accordance with the principle of applicable economy.

3. Overload of the system: The overload of the system should be less than the overload maintenance limit of the transmitter, otherwise it will affect the service life of the product and even damage the goods. The overload maintenance of 2 times measurement scale is the standard equipment of our company's goods.

4. Measurement range: Generally, the actual measurement pressure is selected as 80% of the measurement range.

5. When selecting the anti-riot pressure transmitter , it is also necessary to consider the long-term stability index. The so-called compensation temperature range is the temperature range of the measuring medium during normal operation. The operating temperature range is the maximum temperature range that may occur during the use process. Generally, the selection is slightly larger than the requirement. Temperature range. Determine the electrical interface, pressure interface, mechanical dimensions, etc. Determine if explosion protection is required, anti-electromagnetic interference, and environmental indicators for housing waterproofing.

Anti-riot pressure transmitters can be divided into anti-riot pressure transmitters, differential pressure transmitters and vacuum transmitters according to the measurement range. However, due to the complexity and interference of the industrial site environment, the measurement process of the riot pressure transmitter is highly susceptible to interference, which has an impact on production and damage to the riot pressure transmitter itself. Here, in order to extend the service life of the riot-proof pressure transmitter and improve its measurement accuracy, there are several measures here, and I hope to help you.

1. Selection of output signal of anti-riot pressure transmitter

The commonly used output signal of the anti-riot pressure transmitter is 4-20 mA. When the anti-riot pressure transmitter is in a serious interference situation, the frequency output method or the mA-level output method is generally used in the selection of the output signal. In addition, for the anti-riot pressure transmitter used under special conditions, in addition to considering the output signal, it is necessary to install a filter or special protection measures for the anti-riot pressure transmitter to improve the anti-riot pressure. The anti-interference ability of the transmitter.

2, the package

When selecting the riot-proof pressure transmitter, it should be comprehensively considered according to the working environment of the riot-proof pressure transmitter, the contact medium, etc. In the process of use, in order to reduce the use of the riot-proof pressure transmitter, the riot pressure should be well prepared in advance. Transmitter packaging work.