2018-02
22
Functional Safety KCD2-UT2-(Ex)1, HiC2081
Operation
5.3 Proof Test Procedure for HiC2081
Perform the proof test with the same configuration that you use in the application. Substitute
the sensor with a sensor simulator or a calibrator.
Check the safety function at the input, which must be configured to set the output values to
4 mA, 12 mA, 20 mA.
Equipment required:
• Digital multimeter with an accuracy of 0.1 %
Use for the proof test of the intrinsic safety side of the device a special digital multimeter for
intrinsically safe circuits.
If intrinsically safe circuits are operated with non-intrinsically safe circuits, they must no
longer be used as intrinsically safe circuits.
• TC simulator, RTD simulator, voltage source or resistor
• Termination board
Tip
The easiest way to test HiC devices is by using a stand-alone HiCTB**-SCT-***-**-**
termination board. In this test, it is not necessary to disconnect the wiring of the existing
application. Faults in a subsequent wiring can be avoided.
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