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2.2. Battery and charger
17
The calibrator is supplied with rechargeable batteries which enable up to 8 hours of continuous use. This
autonomy is reduced when the current output or the 12 Vdc power supply for transmitters. A charger is also provided,
which can be connected to 110 or 220 Vac. Care should be taken when changing the 110-220 Vac selection switch in
the charger; time required for a full charge is 14 hours. When the display indicates LOW BAT, it is necessary to
recharge the instrument, which will continue in operation for a few minutes. The battery should only be charged in
a safe area. Only the charger (CG12-IS) and battery (BT12-IS) specified by Presys must be used, otherwise
there is a risk of fire or explosion.
The batteries used by the calibrator are made of Nickel - Metal Hydride (Ni - MH). This new technology
for rechargeable batteries does not have the undesirable characteristics of memory effect and environmental
pollution as their preceding batteries made of Nickel Cadmium (Ni-Cd).
2.3. Using Calibrator: Basic Functions
When powered on, the calibrator goes through a self-test routine and shows the last adjustment date and
the value of the battery voltage. In case of failure, it displays a message to indicate RAM error or E2PROM error; if
that occurs, the instrument should be sent for repair. The battery voltage is constantly monitored and the low battery
warning is provided.
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