What problems should be considered in the selection of pressure transmitter

There are many kinds of pressure transmitters, including two-wire system (current signal) and three-wire system (voltage signal), intelligent and non-intelligent, pneumatic and electric, intrinsically safe and flameproof.

Therefore, the selection of pressure transmitter should be judged according to the actual work needs.

What problems should be considered in the selection of pressure transmitter?

1. Properties of measured medium

Because the measured medium will contact with the interface and sensitive components of the transmitter, it is necessary to choose the material of the pressure transmitter that is compatible with the measured medium.

Otherwise, the outer diaphragm of the transmitter is easy to be damaged, which will affect the normal work of the pressure transmitter.

2. Temperature of measured medium and ambient temperature

If the ambient temperature is higher than the temperature of the product itself, it is easy to cause the product measurement data to be erratic.

Therefore, the actual working environment of the pressure transmitter should be considered to avoid the influence of external temperature on the pressure-sensitive core, resulting in inaccurate measurement.

3. Pressure range

The pressure level of the pressure transmitter should be consistent with the working pressure level of the application equipment.

4. Pressure interface

Verify the size of the pressure interface to be used, and select the appropriate and correct threaded connection form.

5. Electrical interface

The sensor signal of the pressure transmitter should be connected with the field acquisition interface, so it is necessary to confirm the signal acquisition mode and wiring situation at the work site.

Select appropriate and correct electrical interface and signal mode.

Analysis on the selection of pressure transmitter

Pressure transmitter is mainly composed of load cell sensor, module circuit, display meter, case and process connector. It can convert the received pressure signals such as gas and liquid into standard current and voltage signals, and supply them to secondary instruments such as indicator alarm, recorder and regulator for measurement, indication and process adjustment.

Some characteristics of pressure transmitter, such as high temperature resistance and stable performance, determine its wide application range and play an important role in the fields of instruments, meters and industrial automation. Different from sensors, transmitters can not only convert non-electric quantity into measurable electric quantity, but also have a certain amplification effect.

How to choose a practical pressure transmitter for zui: First, determine the measuring medium, look at the corrosion degree of the measuring medium, and choose the corresponding transmitter according to the corrosion degree. Generally speaking, transmitters with stainless steel as isolation unit can be used for non-strong acids and alkalis, otherwise, only special transmitters such as titanium alloy designed for anti-corrosion can be selected.

Secondly, it depends on whether the measuring medium is viscous and clean. If it is very viscous (such as slow flow), you need to choose a transmitter with a hard isolation unit.

The pressure transmitter determines the measurement range and measurement method. Generally, the actual measurement range and overvoltage measurement range should be considered when selecting the measurement range. The selection range should be based on the large measurement range of zui, and the size of overvoltage measurement range should be considered.

Link-B2B is a professional supplier listing service platform which will provide high quality and trustworthy supplier list to international buyers. If you are looking for pressure transmitters suppliers, feel free to visit Link-B2B.com and send a request.