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of 2 °C to 8 ° C (e.g. in a refrigerator).
• Keep the battery pack charged and recharge it at suitable intervals.
• Protect the battery pack against frost and heat!
4.1.2 Connecting the charger to the mains
The charger is supplied complete with interchangeable adapters for different
mains sockets (Fig. 5). To change the adapter, disconnect the charger from
the mains socket, release the currently installed adapter by pressing the key a
and at the same time pull off the adapter y (Fig. 6).
With no adapter fitted, the battery charger can be connected to a mains
socket with the aid of a mains cable (not included) which is inserted into the
integrated mains connection socket (Fig. 7).
4.1.3 Charging the batteries
The NiMH battery pack 45-56 can be charged either in the flashgun or
separately. If it is charged in the flashgun, the flashgun must be switched off !
DO NOT switch on the flash unit while the battery is being charged in
the flash unit! The battery must only be charged with the original Metz
battery charger envisaged for this purpose! DO NOT use any other
charger!
The battery pack is exhausted if the recharging time after a full-power flash
(e.g. in manual flash mode M) exceeds about 60 seconds.
The charging operation is monitored by a microcontroller in the battery char-
ger. When the battery pack is fully charged, the charging operation is termi-
nated automatically and the battery charger switches to trickle-charge mode.
You can leave the battery pack connected to the charger in order to
ensure continuous readiness. However, if you do not intend to use
the battery pack for a long period, you should disconnect it from the
charger.
For safety reasons, the temperature of the battery pack is monitored during
charging and the charging time is also limited by a timer. The charging time
is about 2.5 hours for a fully discharged battery pack and correspondingly
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shorter for a partially discharged battery pack.
• Connect the battery charger 970 to a mains outlet socket and to the
battery pack (the connector for the charger is on the bottom of the
pack). The charging operation starts automatically. The status of the
battery charger is indicated by a two-colour LED.
> LED lights with red light: the battery pack is being charged.
> LED lights with green light: the battery pack has been fully charged
and the charger has switched to trickle-charge mode
.
Identifying a discharged battery pack 45-56:
move the ribbed slide on the battery cover to the black position.
Identifying a fully charged battery pack 45-56:
move the ribbed slide on the battery cover to the white position.
4.2 Operation with Power Pack P50 or P76
If the number of flashes and recycling times are not sufficient for your given
application, then the flash unit can be powered with the Power Pack P50 or
P76 (optional extra). The Power Pack is connected to the flash unit via the
socket ቦ with the V50 or V76 connecting cable (optional extra). This does
not require the use of the battery holder 45-39 or the NiMh Battery
Pack 45-56 inside the flash unit.
A loaded battery holder or battery pack can remain in the flash unit.
To connect the Power Pack or the connecting cable V50 or V76 to the flash
unit the main switch ቪ of the flash unit must be pushed down into its lower
position (OFF).
The flash unit will then be switched on and off with the switch on the Power
Pack (see Operating Instructions for the Power Pack).
To protect the flash unit from overheating when it is operated with a
Power Pack, a monitoring circuit lengthens the recycle time during
intensive use! Ensure that all affected devices are switched off before
connecting and disconnecting the connecting cable or the Power Pack!
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704 47 0126.A5 45 CL-4 digi 01.02.2007 13:13 Uhr Seite 53