Chauvin Arnoux HANDSCOPE CA922 Guide De Démarrage Rapide page 10

INSERTING THE BATTERIES:
If necessary, the batteries(1) are accessible from the rear panel of the oscilloscope after turning the «quarter turn» (2)
lock anti-clockwise; use a coin (3):
The instrument is switched on by a short press on the key shown opposite. It is switched off by a long press (a
shutdown message appears and a beep sounds)
With the external power supply you can use your oscilloscope even if the batteries are flat,
defective or even absent.
It is possible, but not recommende, to use standard alkline batteries (AA type) to replace the
accumulators but in this case be careful:
not to connect the external power supply because when the instrument is switched off the charge
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mechanism is activated which can lead to destruction of the batteries and damage to the instrument;
not to leave the batteries in the instrument for too long to avoid any problems caused by leakage from the
„
batteries.
CHARGE:
The batteries are charged when the oscilloscope is powered off but connected to the external power supply.
During the fast charge of the batteries, the front-panel LED is on.
It flashes in the following situations:
pre-charge of very flat batteries
„
temperature too low or too high
„
batteries damaged.
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The LED goes off when charging is complete.
If charging is interrupted before it is complete, the LED remains on for one minute to remind the user that the
batteries are not fully charged.
SWITCHING ON / OFF
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