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7.3.2 Display modem battery voltage
◼
The voltage of the modem battery can be checked under
Admin → Batteries → UBatM (Voltage of the modem battery)
If a call window is active, UBatM shows the measured value of the supply
voltage of the modem. If no call window is active, UBatM shows 0.00 V. To
update the measurement although the call window is not active simply
press the ENTER button.
The voltage measurement is carried out by the modem itself. Therefore, the
update of the displayed modem voltage takes up to 10 seconds.
If no modem is assembled or if the modem battery is empty, no measure-
ment can be carried out. The voltage displayed stays at 0.00 V.
The voltage of the modem battery has to be between 3.4 V
und 4.0 V in order to communicate properly.
7.4 Changing the fuse of the power supply unit
WARNING!
When using in Zone 2
– Do not open when an explosive atmosphere may be
– Potential electrostatic charging hazard: Do not rub
The fuse can be exchanged without a calibration officer, as the housing
does not need to be sealed.
present!
against the display window!
Maintenance
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