Dialight SafeSite LED Emergency Bulkhead - ATEX/IECEx - Manual (Page 6)

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If the green Status LED is not lit with power applied to the
L1 feed, disconnect power and rectify any faults.
In Service, Battery Charging and condition
monitoring
When power is applied (initially or after an outage), the
battery will be charged for 36 hours. Thereafter, in order to
maximise battery life while maintaining emergency
capacity, the battery charging operates for 1 minute in
every hour.
The battery is continually monitored for voltage limits and
charge current acceptance (during charge pulses).
If the mains power supply is interrupted, the fixture will
switch to emergency mode operation at reduced light
output. Expected emergency mode duration exceeds 3
hours.
If, during an emergency mode cycle, the battery capacity
has deteriorated to the point that 3 hours is not achieved,
then when power is restored this battery “failure” will be
signalled by flashing the green status LED once every 8
seconds. The fault indication will be automatically reset
when a successful charge/discharge cycle is completed.
Maintenance and Battery Replacement
WARNING:
Disconnect the power supply to the luminaire before
maintenance or repair.
Wait at least 10 minutes before opening the LED
luminaire after de-energising.
The battery pack should be replaced every 4 years for
continued reliable operation. To replace the battery :
1) Disconnect the mains power – Emergency mode
will operate.
2) Unscrew the 4 front TORX bolts to gain access to
the inside. The front of the fixture with LED tray can
now be lowered and supported by the drop cable.
3) Check the Emergency mode has been terminated,
i.e. all LEDs are extinguished.
4) Disconnect the two pole battery connector.
5) Squeeze the release tab on the cable ties holding
the battery pack and remove.
6) Unpack the new battery pack and inspect for
damage.
7) Install new battery pack and secure in place by re-
attaching the cable ties.
8) Reconnect the battery connector.
9) Refit the front LED tray, ensuring seals are not
damaged, and cable or straps are not trapped.
10) Re-energise the circuits and check the green status
LED illuminates. Allow 24 hours charging before
expecting full emergency duration.
The battery is protected to IP30, and may be safely
transported through hazardous areas subject to local or site
regulations. Dispose of old batteries in accordance with
regulations.
If any unforeseen repairs are required then always
observe explosion protection regulations and requirements.
Inspection
Within the scope of the maintenance or inspection routine
the following should be included.
Protective hoses covering the connecting cables.
Cable entries must be free from corrosion.
Status LED must be illuminated and not flashing.
Repairs / Overhaul / Modification
The relevant national regulations which apply to the
maintenance/servicing of electrical apparatus in
explosive atmospheres shall be observed.
Any unforeseen repairs or overhaul may only carried out
with genuine Dialight spare parts.
Should the luminaire enclosure be damaged, only a
replacement will be permitted. In case of doubt, the
equipment should be returned to Dialight Europe Ltd
for inspection/repair.
Modifications to the device or changes of its design are
not permitted.
This equipment must be operated according to the
intended purpose in a perfect and undamaged condition.
Disposal/Recycling
When the apparatus is disposed of, the respective national
regulations on waste disposal should be observed.
Ordering Spare Parts
Replacement Batteries
Dialight Europe Part Number A80-000799 (3.6V 4Ah Ni-mh
battery pack) or A80-001500 (3.6V 10Ah Ni-mh battery
pack)
Should any unforeseen spares be required then please
contact Dialight Europe Ltd for availability.