Fluke 165X Installation Manual page 24

No. Annunciator
C
O
P
Appears when the instrument is uploading data using FlukeView Forms.
Name of the secondary measurement function.
U N
Test voltage for insulation test.
U F
Fault voltage. Measures neutral to earth.
PSC
Prospective Short Circuit. Calculated from measured voltage and impedance when
reading line to neutral.
PFC
Prospective Fault Current. Calculated from voltage and loop impedance which is
measured line to protective earth.
I K
Tripping current for RCDs.
R E
Earth resistance.
Electrical Installation Tester
Meaning
Operating the Tester
13