4~20mA current output or 0~5V voltage output?

For the analog pressure transmitters like our UPB1, which output is suitable for your application? 4~20mA or 0~5V?

Most of the early pressure transmitters are of voltage output type, the measurement signal is converted into a standard voltage output of 0-5V, and the signal power is less than 0.05W. However, when the signal needs to be transmitted over a long distance or the grid interference in the use environment is large, the use of the voltage output sensor is greatly limited, exposing the shortcomings of poor anti-interference ability, line loss destroying the accuracy and so on.

The two-wire current output type transmitter has been widely used in practice because of its extremely high anti-interference ability.

From an economical point of view, the signal transmission of the current output pressure transmitter requires less wire cores than the voltage output type, which saves materials and reduces costs.

The voltage output type pressure sensor also has its advantages. For example, the voltage type is significantly lower than the current output type in terms of power consumption, and it is more suitable for occasions with low power consumption requirements such as battery power supply. In addition, in the field of aerospace or scientific research, voltage-type transmitters are more common than current-type applications.

For more information, please contact Stella Meng.