Fluke 1652C - Page 22

1652C/1653B/1654B
Users Manual
14
Table 6. Display Features (cont.)
No. Annunciator Meaning

Secondary display and measurement
units. Some tests will return more than
one result or return a computed value
based on the test result. This will occur
with:
• Volts
• Secondary display shows line
frequency.
• Insulation tests
• Secondary display shows actual test
voltage.
• Loop/line impedance
• Secondary display shows PEFC
(Prospective Earth Fault Current) or
R
E
PSC (Prospective Short Circuit
Current).
• RCD switching time
• Secondary display shows U
F
fault
voltage.
• RCD tripping current
• Secondary display shows U
F
fault
voltage.

battery test Appears when you are testing the
batteries. For more information see
“Testing and Replacing the Batteries”
on page 41.

ZERO

Appears when you press the 
button to zero the leads. After the
zeroing operation, the icon stays
illuminated indicating that zeroing has
been performed. Only used when
performing continuity or loop testing.


Potential danger. Appears when
measuring or sourcing high voltages.