ONLINE ELECTRONICS LTD
ID5000P_5001_A01
Page 13 of 18
4.
RECOMMENDED MAINTENANCE
The Special Conditions for Safe Use detailed in section 8 ATEX APPENDIX of this manual must
be observed and followed at all times.
Frequent inspections should be made. A schedule for maintenance checks should be generated
according to the environment and frequency of use but should be regular enough to ensure the
equipment continues to operate in the designed manner. It is recommended that it should be
at least once a year.
External parts of the equipment should be periodically cleaned using fresh water to ensure that
deposits are not allowed to accumulate. Avoid the use of aggressive chemicals.
Check flame paths / threads on the enclosure body and lid for signs of corrosion or damage. If
badly pitted or damaged, replace the relevant component.
The unit contains a coin cell (BR2032) used to power the Real Time Clock (RTC) circuitry which
provides system date and time. This battery should be replaced every 5 years.
All components that are replaced must be in accordance with the manufacturers’ specifications.
Failure to use such components may invalidate the certification/approval and may make the
equipment dangerous.
4.1.
MAIN BATTERY REPLACEMENT
1.
The Special Conditions for Safe Use detailed in section 8 ATEX APPENDIX of this manual
must be observed and followed at all times.
2.
Referring to the figure below use a 3mm AF Hex key to loosen the locking GRUB SCREW
which locks the main housing lid shut. Unscrew and remove the lid to expose the
electronics and display.
3.
Using a 3mm AF Hex key remove the 4x M4x12 cap screws holding the main PCB down
and then carefully lift off the main PCB to reveal the battery pack. Place the main PCB
somewhere safe where it will not be accidentally damaged while the battery pack is being
replaced. Note the position of the RTC cell behind the display.
4.
Note the orientation of the battery with the two metal contacts on the same side as the
button and cable entries as shown in the figure above.
5.
Re-assemble the unit following these instructions in reverse. When replacing the main PCB
ensure it is located properly using the dowel pins provided. Ensure that all PCB
connections mate properly. Do not over tighten the locking GRUB SCREW.
