84
Maintenance
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
present!
– Potential electrostatic charging hazard: Do not rub
against the display window!
The fuse can be exchanged without a calibration officer, as the housing
does not need to be sealed.
Summary of Contents for DL230
Page 6: ......
Page 98: ...98 Appendix 9 3 EC Declaration of Conformity ...
Page 99: ...Appendix 99 9 4 ATEX Type Examination Certificate 9 4 1 Associated apparatus for Zone 0 1 ...
Page 100: ...100 Appendix ...
Page 101: ...Appendix 101 ...
Page 102: ...102 Appendix ...
Page 103: ...Appendix 103 ...
Page 104: ...104 Appendix ...