Sonel MPI-520 User Manual

MPI-520 OPERATING MANUAL version 3.4
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6 Power supply
6.1 Monitoring of the power supply voltage
The level of the charge of the batteries or accumulators is currently indicated by the symbol in the
right upper corner of the display:
Bartery charged.
Bartery low.
Bartery fully discharged.
Bartery fully discharged,
measuring blocked.
Note:
 The displayed BAT symbol means insufficient power supply voltage and the need to charge the
accumulators,
 Measurements realised with an insufficient meter power supply voltage are distorted with addi-
tional errors which are impossible to ascertain by the user and thus they cannot constitute a basis
for a conclusion of correctness of the tested earthing system.
6.2 Replacement of batteries (accumulators)
MPI-520 meter is powered by 4 batteries (LR14). It can be also powered by the manufacturer’s
accumulator package (SONEL NiMH).
Battery charger is installed inside the meter and cooperates only with the manufacturer’s accumu-
lator package. The charger is powered by external power supply adapter. It can be also powered from
the car cigarette lighter socket. The accumulator package as well as the power supply adapter belong
to additional accessories and can be purchase separately.
WARNING:
If the test leads are left in the sockets during replacement of the batteries or the pack-
age of accumulators, there is a risk of electric shock with a dangerous voltage.
In order to replace the package of accumulators it is necessary to do the following:
 Remove all the test leads from the sockets and turn the meter off,
 Remove the four screws of the accumulators/batteries compartment (in the lower part of the cas-
ing),

Sonel MPI-520 Specifications

General

Brand	Sonel
Model	MPI-520
Category	Measuring Instruments
Language	English