5.2
Calibration Interval
The voltage testers must be aclibrated periodically and chec-
ked by our service department at regular intervals to ensure
the specified accuracy of measurement results. We recom-
mend a calibration interval of one year.
5.3
Battery Replacement
If the symbol
is displayed on the Polaris 3 plus Volta-
ge Testers or if no acoustic signal is audible when short-cir-
cuiting the test probes, the battery must be replaced.
Completely disconnect Polaris 3 plus Voltage Tester
from measurement circuits.
Carefully push the battery case towards the rear by in-
serting a screwdriver in the slot located on the instru-
ment side.
Remove discharged battery.
Insert new battery, type 9V IEC 6LR61 while ensuring
correct polarity.
1.
2.
3.
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