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6 Battery operation and power saving mode
PLICSMOBILE T81/B81/S81 • External GSM/GPRS/UMTS radio unit
55234-EN-170206
6 Battery operation and power saving mode
6.1 Battery/accumulator operation
If no mains voltage is available, PLICSMOBILE can be also powered
with batteries. For this purpose, an optional power pack is available
in a separate housing (PLICSMOBILE B81). This power pack can be
either ordered or equipped with chargeable accumulators or Lithium
batteries. As an alternative, an external battery/accumulator can be
connected via the voltage supply terminals. You can find detailed
information of the voltage supply in chapter "
Technical data
".
When battery/accumulator operation and time-controlled measure-
ment transmission are activated, the power saving mode should be
switched on and the Bluetooth function switched off to increase the
operating time (details see chapter "
Power options
"). In addition, the
HART Multidrop mode should be switched on.
Note:
For charging the accumulators the ambient temperature must be in
a range of 0 … +45 °C (+32 … +113 °F). Temperatures outside this
range are permitted, however due to the protective circuit integrated
in the instrument, charging is not possible.
6.2 External battery PLICSMOBILE B81
The PLICSMOBILE B81 was especially developed for the power
supply of PLICSMOBILE T81. It can be optionally equipped with
rechargeable accumulators or non-rechargeable batteries of series
"D" (Mono).
Note:
There is a safety instruction leaflet attached to each PLICSMOBILE
B81 which must be read before setup and observed.
With the Ex version, one of the two following batteries/accumulators
must be used. If other batteries/accumulators are used, the approval
becomes invalid.
If there is no solar panel available at the installation location, then
PLICSMOBILE B81 should be equipped with non-chargeable Li-
batteries. As an alternative, standard Alkaline batteries can be used,
the lifetime is hence shorter. We recommend using Lithium batter-
ies LSH 20 of Messrs. Saft (VEGA order no. 2.54970). You can find
further information of this battery type in the technical data.
Warning:
When using non-chargeable batteries, the terminals of the "
Solar
Panel Input
" must not be connected. If voltage is applied, the batteries
will be destroyed and there will be a fire hazard.
If a solar panel is used, PLICSMOBILE B81 must be equipped with
rechargeable NiMH accumulators. The solar panel is connected di-
rectly to terminals 4 and 5, a charge regulator is integrated in the bat-
tery cover. We recommend the use of NiMH accumulators 5030641
Battery operation
Accumulator operation
