2019-10
16
Functional Safety KFD2-UT2-(Ex)*(-1)
Operation
5.2 Proof Test Procedure for KFD2-UT2-(Ex)*(-1)
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
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