Transmitters for pressure, flow and level
January 2003
Pressure Measurement & Control
The Jumo dTrans p02 series of pressure transmitters combines tried and tested sensing systems with state-of-the-art digital technology. There are three models:
The Jumo dTrans p02 Delta pressure transmitter measures differential pressure in both corrosive and non-corrosive gases, and vapours and liquids. The pressure transmitter operates on the piezo-resistive effect. The output signal is a DC current (linearly proportional to the differential pressure.) For flow measurements it is possible to set up the output signal to be proportional to the square root of the input pressure.
The pressure transmitter may be used to measure the gauge (relative) and absolute pressures of corrosive and non-corrosive gases, vapours and liquids. The sensor is a piezo-resistive element or thin-film strain gauge, and the transmitter output signal is a DC current, which is linearly proportional to the input pressure.
In the EEx ia IIC version, the pressure transmitter can be mounted within the hazardous Zone 1, for connection to Zone 0. For special applications, eg, for measuring highly viscous media, the Jumo dTrans p02 is available with flush pressure connections in various styles. Suitable pressure connections are also available for applications involving media temperatures of up to 200°C.
The ceramic-based version of this pressure transmitter measures the gauge (relative) or absolute pressure in both corrosive and non-corrosive gases, vapours and liquids using a ceramic, capacitive sensor. This transmitter also features a DC current output signal that is proportional to the input pressure.
The Jumo dTrans p02 pressure transmitter series can also be operated through a HART communicator, or a PC in conjunction with a HART modem and the Jumoset-up program running under Windows.
For more information contact Anastas Schnippenkotter, ASSTech Process Electronics & Instrumentation, 011 794 7057, [email protected], www.asstech.co.za
Further reading:
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