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Electrical Installation Tester
Operating the Tester
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
RE PSC (Prospective Short Circuit
Current).
• RCD switching time
• Secondary display shows UF fault
voltage.

battery test
Appears when you are testing the
batteries. For more information see
“Testing and Replacing the Batteries”
on page 30.

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.
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