1662/1663/1664 FC
Users Manual
14
Table 7. Display Features (cont.)
Item Annunciator Definition
G
+
Safety Pretest has detected a connected
appliance and stopped the test. See Insulation
Resistance Measurements for more information.
H
W
Risk of danger. Appears when an error occurs.
Test is disabled. See Table 9 for a list and
explanation of possible error codes.
I
Name of the secondary measurement function:
Z
I
Line impedance (line to neutral).
U
N
Test voltage for insulation test.
PSC
Prospective Short Circuit. Calculated from
measured voltage and impedance when reading
line to neutral.
U
F
Fault voltage. Measures neutral to earth.
PEFC
Prospective Earth Fault Current. Calculated from
voltage and loop impedance that is measured line
to protective earth.
I
K
In combination with the PSC or PEFC symbol,
indicates a short circuit current.
Zmax
Recorded maximum value of chosen loop test.
R
E
Earth resistance
K
Appears when the Tester is overheated. The Loop
test and RCD functions are inhibited when the
Tester is overheated.
K
More results are available. Use
to scroll through
the results.
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