I-PR3C-03.doc
Issue 03
17/01/2022
5
IOM
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PROTECTA LED Ex ec
The procedure for opening the cover is as follows:
Insert the tool into one of the slots in the clamping bar with the end of the tool located into the outer flange of the
body as a fulcrum point, a wide blade screwdriver is recommended. Gently lever the tool away from the diffuser,
the clamping bar will begin to open. Insert the tool in the other clamping bar slot and gently lever away from the
diffuser the clamping bar will open and the cover will be retained by the hinge. Should difficulty be experienced,
reinsert the tool in the first slot and repeat the procedure.
The procedure for closing and securing the cover is as follows:
Ensure the hinge mechanism is clear of any obstruction and then swing the diffuser into the closed position.
Support the diffuser in position whilst pushing the clamp bar over the edge of the diffuser. Apply even pressure
at both ends of the bar and press the bar over centre.
3.8.2 Removal and Replacement of Clamping Bar (if required)
Open the luminaire as above and remove the diffuser or let it swing down. Press the clamping bar towards the
closed position, tip forward beyond the closed position and the clamping bar will be released from the body. To
replace the clamping bar, put in position on the body with the front edge pointing as far inwards as it will go.
Click the bar outwards and bring back to the normal closed position. The clamping bar should then be secured
in position, open the clamping bar fully by using hand or screwdriver pressure (avoid damaging the gasket), the
clamping bar is then ready to accept the normal closure of the diffuser.
3.8.3 Releasing the LED Tray / Gear Tray
Loosen the four fixing screws retaining the LED / Gear tray and slide over keyhole slots. The tray will hang on
the retaining cords without stressing the wiring between body and tray. Replace in reverse order.
3.8.4 Retro Fitting Lamps to LED’s
Before opening the front cover ensure that the luminaire is isolated from the mains supply. Access for retro
fitting is via the front cover, care is to be taken as there is limited suspension of the cover. Make sure that the
correct ESD protection is taken during LED replacement to avoid electric discharge to the PCB.
3.8.5 Commissioning
Energise the mains and check that LED’s illuminate when the supply is energised.
If LED’s do not illuminate, ensure switch on Inotec module is set to DL
For further troubleshooting see section 4.0
3.9 Inspection and Maintenance
Important:
Isolate the mains supply before carrying out any work.
3.9.1 Replacement of Electronic Ballast
System life > 120,000hrs
Therefore, replacement of this component should be unnecessary. The electronic ballast contains no
replaceable parts. Should it be found necessary to replace this part, the following procedure should be adopted:
Ensure that the Luminaire is isolated from mains, otherwise a risk of shock may occur. Disconnect the leads on
the ballast at the terminal block. Undo the ballast securing screws and washers and withdraw the ballast from
the gear body. Replace in reverse order.
3.9.2 Routine Examination
The Luminaire must be de-energised before opening. Individual organisations will have their own procedures.
What follows are guidelines based on our experience:
1
Ensure LED’s are lit when energised by mains supply.
2
Visually check diffuser cover for damage, this should only be cleaned using a damp cloth to avoid static,
and only use recommended detergents for polycarbonate. If the polycarbonate is discoloured or damaged
a new diffuser cover must be fitted.
3
When de-energised and left to cool, there should be no significant sign of internal moisture. If there are any
signs of water ingress, the Luminaire should be opened, dried and any likely ingress points eliminated by re-
gasketting or other replacements.
4
Check cable glands for tightness and nip up if required.