MEDC SL5 User Manual

Page 5

07/13

Remove/Replace The Potted Lamp Units:-

Unscrew the 4 off M5 screws (4.0mm A/F hexagon key) holding the cover assembly to the base. Keep the screws

in a safe, accessible location if non-captive. Remove cover assembly to gain access to the interior.

Filament Units:

For extra safety, twin lamps are fitted in each unit. If one lamp fails, the other will remain illuminated but the

lamp unit should be replaced at the first opportunity. To do this, once the cover has been removed, disconnect the

wires from the terminals then simply unscrew the 2 x M3 screws (2.5mm A/F hexagon key) holding the mounting

rail to the cover. Then finally unclip the lamp unit from its mounting rail.

Replace a new lamp unit in a similar, but reverse manner to that used for removal.

LED & Xenon Units:

In the event of the Xenon tubes/LED clusters failing the whole cover must be replaced. Remove the cover as

instructed above. Release the connection wiring from the relevant terminals, before disconnecting the cover from

the retaining strap which is retained via a M3 screw (2.5mm A/F hexagon key) situated on the underside of the

cover.

Replace the new cover assembly in a similar, but reverse manner to that used for removal. Check the O’ring

situated in the groove on the underside of the cover and is secure before final assembly.

Once termination is complete, carefully push the cover assembly back onto the base, avoiding damage to the

mating surfaces. Replace the 4 off M5 fixing screws (4.0mm A/F hexagon key, maximum torque 4Nm) into the

holes in the cover assembly and tighten evenly.

6.0 CERTIFICATION/APPROVALS

IECEx units

Ex e mb unit (IEC certification No. IECEx BAS 11.0105X)

Filament Units

Certified to IEC 60079-0 and IEC 60079-7

Ex e IIC T3 Gb (-40°C to +55°C)

LED & Xenon Units

Certified to IEC 60079-0 , IEC 60079-7, and IEC 60079-18

Ex e mb IIC T4 Gb (-40°C to +45°C ) - LED

Ex e mb IIC T4 Gb (-40°C to +55°C ) - Xenon

The IECEx certificate and product label carry the IECEx equipment protection level marking

Where Gb signifies suitability for use in a Zone 1 & Zone 2 surface industries area in the presence of gas.

ATEX units

Ex e mb unit (ATEX certification No. Baseefa02ATEX2108X)

Filament Units

Certified to EN60079-0 and EN60079-7

Ex e IIC T3 Gb (-40°C to +55°C)