3 IN S T ALLAT IO N
3.1 P ower supply
The P R O M AX -6 is an portable instrument powered by a built-in 7.2 V NiCd
rechargeable battery. Before taking any measurement, the user should make sure
that the battery is fully charged (use the charge/discharge charger supplied with the
instrument).
3.1.1 R echarging the battery
The battery charger has an automatic safety circuit to prevent any possible
damage to the unit as a result of defective batteries.
The instrument is equipped with a 230 V / 50-60 Hz mains adaptor for Europe
and other countries to power the battery charger. (See accessories to place an
order for other types of adapters.)
1) Connect the cable from the mains adapter to the charger. Connect the
adapter to the mains. Insert the battery in the charger once the adapter-
charger is connected to the mains.
2) D ischarge the battery prior to carrying out the charging process in order to
eliminate any possible residual charge. In order to do so, press button A
situated on the right (see figure 1). At this point, a small yellow light comes
on and the process of discharging is under way. When discharging is
completed, the charger automatically sets the process of charging
underway.
3) The charging process lasts for two and a half hours. When the process is
completed, the three red indicators will light up. At the same time, an
indicator will flash and an acoustic alarm will sound for 90 seconds,
indicating that the charging process has been successfully completed.
4) After this period, if the battery is not removed from the charger it will remain
in permanent minimum charge mode. A green LED will flash until the battery
is removed.
