Hydrostatic pressure transmitter ED752

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for nuclear power plants

Sensor Technology

Hydrostatic pressure transmitter ED752
Hydrostatic pressure transmitter ED752

Together with the DX display, two pressure transmitters ED752 for hydrostatic pressure measurement can be used to detect clogging in the coolant inlet of nuclear power plants. The ED752 features a pressure range from 0 to 15mH20 for applications in nuclear power plants. The device is available in Hastelloy C, resistant against most aggressive liquids like seawater. The DX display receives signals from the two ED752, calculates the differential pressure and then converts it in 4 to 20mA analogue output. Afterwards, it activates four switching outputs according to the varying differential pressures caused by the filter pollution. Whereas at the first two degrees of pollution, the rotation gets accelerated more, the power of the reactor is reduced at the third degree. At the fourth degree of pollution, the reactor is stopped. The pressure control with the ED752 and the DX Display has been proved in a long-term test with different pressure cycles, shocks and vibrations as well as electromagnetic radio frequency interferences.

Posted on February 1, 2009 - (207 views)
Baumer Bourdon-Haenni AG
Bernstrasse 59
3303 Jegensdorf - Switzerland
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