Commissioning and maintenance
Function test
8
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8.1 Function test
Loop isolator (100V)
● Carry out the function test at the specified intervals in accordance with the local
requirements and standards.
● Perform the function test on site at the same time as the system acceptance
test
● Replace defective components immediately.
External LED on the Loop isolator LED
● If the LED is not working, check the polarity of the Loop isolator LED
component connections.