Operating Manual Isotest 3P
Page 18
B.1 Charger Units
B.1.1 Forms of Charger Units Available
A number of different charger units are available to recharge the batteries of the
units. These only differ in the type of power supply
Universal charger 6 V / 600 mA for main voltage 220/230 V
Universal charger LG24 6 V / 600 mA for DC 24 V =
B.1.2 Types of Battery
Two different types of battery can be used as power sources for ISOTEST units:
Nickel-cadmium (NiCd) battery 6 V / 6 Ah (no longer supplied!)
Connection with two separate plugs
Lead-acid (Pb) battery 6 V / 6.5 Ah
Connection with two-pole plug
The various types of batteries are substantially equivalent to each other, Lead-acid
batteries are, however, less complicated in terms of charging: unlike NiCd batteries,
an already charged lead-acid battery is not harmed by multiple charging operations.
The well-known effect of a loss of capacity in the case of NiCd batteries if they are
constantly recharged after partial discharge does not occur with lead-acid batteries.
However, lead-acid batteries should never be fully discharged. If the buzzer on the
ISOTEST unit is sounded to indicate that the battery voltage is too low, the battery
should either be replaced immediately by a fully charged one or else the battery in
use must be recharged.
B.1.3 Connecting the Battery to the Charger Unit
The battery must be taken out of the unit to allow it to be charged or its capacity to be
checked. Do this by opening the battery compartment, undo the plug(s) and lift the
battery out of the unit by the loop (Pb battery) or
carefully
by the connecting cables
(NiCd battery).
