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Technical Description of the Device
128
• Battery life decreases with higher ambient temperatures (to approx. 90% at 50°C, to 80% at
70°C).
• Battery life decreases with decreasing signal strength (to approx. 60% at 15% signal strength).
7.5.4 Replacing the Modem Battery
Press the lock and gently pull the cables to disconnect the
connector of the modem battery.
Loosen the battery cables from the bracket (2)
Loosen the fixing screws (3).
Remove the battery and replace it with a new
one. Tighten the screws.
Hitch the cables under the bracket (2) and
connect the connector.
Connect the cables into PWR2 terminals of the
modem external power supply.
Make sure that the battery is connected to the
correct connector, see Section 0.
7.5.5 Back-up Battery
The battery serves to backup important functions when the main battery is discharged or being
replaced. The back-up battery is located in a holder on the processor board (CPU module) under
the cover. The back-up battery can be replaced by an authorized service centre after disrupting
the official and manufacturing marks (the replacement must not be performed in potentially
explosive atmospheres). Only approved battery types may be used.
The battery life of the back-up battery is specified in Section 7.5.1.
7.5.6 External Power Supply
i
External power supply can be used for ELCORplus and ELCORplus Indexer.
For ELCOR, external power supply cannot be used.
The external power supply to the device does not provide power to the
internal modem. For an internal modem, separate external power supply
must be used.
The ELCORplus and ELCORplus indexer can be powered from an external intrinsically safe
source. If the device is equipped with an internal modem, the device can also be equipped with
an external power supply for the modem.
External power is recommended where the operating mode of the device or modem is set to have
an increased current consumption from the batteries, thus shortening the batteries life.
Using external power supply for the device
(its measuring part) is necessary:
When using S0-EXT1 module with NAMUR HF pulse input
Summary of Contents for DATCOM
Page 38: ...3 Technical Parameters 36 ...
Page 50: ...5 Installation and Commissioning 48 Fig 7 Examples of data plates ...
Page 83: ...5 Installation and Commissioning 81 Fig 37 Communication via RS232 RS485 using B RS module ...
Page 115: ...7 Technical Description of the Device 113 Fig 57 Functional diagram of ELCOR ...
Page 116: ...7 Technical Description of the Device 114 Fig 58 Functional diagram of ELCORplus ...
Page 122: ...7 Technical Description of the Device 120 Fig 61 Modem replacement ...
Page 159: ...10 Communication with the Device 157 packet ...
Page 174: ...12 Accessories 172 Fig 78 ELCORplus example of use of external modules ...
Page 213: ...Appendix 3 Compass Data Export 211 Preview of generated document ...
Page 215: ...Appendix 3 Compass Data Export 213 3 Export to XLS 4 Export to TXT DOC ...
Page 216: ...Appendix 3 Compass Data Export 214 ...
Page 217: ...Appendix 3 Compass Data Export 215 5 Export of graph ...