Pressure transmitter is a commonly used detection instrument, mainly used for measuring media such as liquids, vapors, gases, etc. It is widely used in multiple industries. For newly purchased pressure transmitters that require installation, we need assistance with a wiring diagram of the pressure transmitter Shanghai Longlv will provide a detailed introduction to the installation and wiring diagram of pressure transmitters.

The commonly used pressure transmitters nowadays are two-wire, equipped with a power isolator, and output a 4-20mA signal. The transmitter has two input terminals, one connected to a given signal and the other connected to a pressure feedback signal. So the correct installation method is: the pressure transmitter generally outputs signals such as current 4-20MA, 0-20MA, or voltage 0-5V, 1-5V, 0-10V, etc. The current type is usually a two wire or four wire system, and the voltage output is a three wire system. At present, many transmitters in the market do not have a 24VDC power supply, most of which are 10V. Some transmitters with high power consumption cannot be powered by a 10VDC power supply, so they can only be powered by an external 24VDC power supply. In this way, the transmitter has four wiring terminals: power supply+, power supply -, feedback+, and feedback -. Current type four wire wiring method: power supply+==power supply+; Power supply -==Power supply -; Signal+==Feedback+, Signal -==Feedback -. Current type two wire connection ratio method: power supply+==power supply+; Signal+==feedback+, power supply -==feedback -. If remote transmission is not required, only 24V voltage+needs to be connected. If remote transmission is required, a circuit needs to be formed, such as 24V+connected to pressure gauge+, pressure gauge - connected to 4-20mA+, 4-20mA - connected to 24V -. There may be terminals in the middle, please refer to the circuit diagram.. Voltage type three wire wiring method: power supply+==power supply+; Power supply - (signal -)==Power supply -; Signal+==Feedback+, Power - (Signal -).

The above is the wiring method for general pressure sensors/transmitters. If you still have any questions, you can contact our company's technical department who provides the product to teach you step by step how to solve the wiring problem of sensors/transmitters.

Pressure transmitter wiring diagram

1、Physical diagram of the wiring diagram for a two-wire pressure transmitter