2011-09
22
SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082
Proof Test
Additionally the loop diagnosis shall be tested to prove that the fault signalling via
the current output is working correctly. The output current in the event of a failure
depends on the device configuration. Please record this configuration and the
resulting expected fault signalling current in the test report. Example: if downscale
is configured, 2.0 mA ±1 % must be measured in the event of a failure. The red
LED must be blinking.
Thermocouple:
■ Disconnect simulator (lead breakage).
■ Disconnect fixed resistor (lead breakage of CJC).
■ Apply short circuit between terminal 1 and 4 (short circuit of CJC).
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