Charging The Battery; Optimising Battery Life; Transducers - GF PF220 V2 Betriebsanleitung

Operating Instructions
3.4.5 Power supply and battery charging
Operating power is provided by an internal battery that can be charged from the utility supply using the supplied external charger.
When you first receive the unit, you should charge the battery for a minimum of 15 minutes before use. It is possible to use the unit
while the battery is charging but if the charging fails the unit may automatically switch off. A fully charged battery will power the
instrument for up to 13hrs depending on the output utilisation and backlight usage.

Charging the Battery

1. Connect the external battery charger to the charger socket at the bottom of the instrument then switch on the utility sup-
ply.
2. When switched on, the instrument indicates charging with an animated battery symbol to the left of the date. It will also
indicate that the device is being powered externally by a plug
symbol in the top status line.
3. Leave the instrument on charge for at least 15 minutes before using it for the first time.

Optimising Battery Life

The backlight can be configured in the Setup Instrument menu to be either permanently OFF, timed to switch off after 5-120s of
keypad inactivity, or permanently ON. If the backlight is active continuously it will reduce the available battery operating time to
around 10 hrs (depending on output conditions). Similarly, if the current loop output is used constantly at high currents, the battery
life may be reduced even further. It is therefore beneficial to turn off the backlight and current loop output facilities when they are
not required.
A warning message is triggered if the internal battery voltage falls below a set threshold, at which point there are tens of minutes
of battery operation remaining (depending on usage). If the battery is left to discharge further, the unit is designed to shut down
before the battery is completely exhausted. In this situation, all operations, including logging, will be stopped.
The battery can be charged either while the instrument is in use or when switched off.
The instrument's internal data is stored in non-volatile memory and will not be lost even if the
battery discharges completely.
NOTICE
Do not replace the battery yourself!
The battery is not a user-replaceable item. If the battery needs to be replaced, the instrument must be returned to the distributor.
Only the supplied charging station or a special adapter cable may be used. Failure to do so will void the warranty.
3.5

Transducers

Two sets of ultrasonic transducers are provided as standard. When setting up the instrument it will indicate the appropriate
transducer set to use for a particular application, depending on data entered by the user. Default pipe ranges are programmed
into the instrument and most of the time there will be no need to use an alternative transducer set to the one suggested by
the instrument. However, if circumstances dictate that a different set must be used it is possible to manually programme the
instrument to accept the alternative set.
Transducer set 'A'
Supplied as standard for use on pipes 13mm to 115mm outside diameter.
Transducer set 'B'
Supplied as standard for use on pipes 50mm to 2000mm outside diameter.
Design and function
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