Battery Charging (Det5/4R); Fitting Or Replacing The Battery Cells; (Det5/4D) - Megger DET5/4R Guia Del Usuario

OPERATION

BATTERY CHARGING (DET5/4R)

It is advisable that the battery of the DET5/4R is fully
charged before embarking on a test sequence. It is
beneficial to the battery to keep it fully charged.
The battery should be charged as soon as the low
battery indicator appears on the display. If the display
remains blank when the instrument is operated, it is
likely that the battery is completely exhausted. Do not
allow the battery to become completely exhausted as
this could damage it.
Caution:- Before commencing battery charging ensure
that:
A correctly rated fuse is fitted and that the voltage
selector is set to the correct value for the supply to be
used. For a 240 V a.c. supply the fuse should be 100
mA and for a 120 V a.c. supply the fuse should be 200
mA. (Type and sizes of the fuses are given in the
Specification). The mains supply fuse is located in the
holder which is part of the mains socket. This is
reached by undoing the two screws located on the
underside of the instrument which hold in place the
protective panel covering the mains socket. The supply
voltage selection is by reversing the position of the fuse
holder in the mains socket.
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When the fuse and voltage selector are correctly set,
plug the mains supply lead into a suitable socket outlet
and switch on. An LED will illuminate alongside the
mains supply inlet marked 'CHARGE' to show that the
instrument is connected to a mains supply. Leave the
battery to charge for approximately 10 hours. When
completed, replace the protective cover for the mains
supply to ensure instrument protection.
FITTING OR REPLACING BATTERY CELLS

(DET5/4D)

Caution:- Use only battery cells of the correct type
(Alkaline IEC LR6).
Caution:- Before fitting or replacing battery cells
ensure that all test terminal connections are
disconnected.
Unscrew the cover for the battery compartment by
removing the screws in the base of the instrument.
Remove the old cells and fit the new cells as indicated
on the battery compartment moulding. Replace the
cover and tighten the securing screws.
To avoid damage by leaking electrolyte, do not leave
batteries fitted in an instrument which will remain
unused for extended periods of time.