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General arrangement – MEDC XB9 User Manual

Page 4

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4.0 MAINTENANCE

During the working life of the unit, it should require little or no maintenance. GRP will resist attack by most acids,

alkalis and chemicals and is as resistant to concentrated acids and alkalis as most metal products.

However, if abnormal or unusual environmental conditions occur due to plant damage or accident etc., then visual

inspection is recommended.

If the unit requires cleaning, then only clean exterior with a damp cloth to avoid electro-static charge build up.

Replacement of the xenon tube (see below) can be carried out by competent site personnel. Other repairs should be

undertaken by returning the unit to MEDC or by an authorised repairer of Ex equipment.

If a unit fault should occur, then the unit can be repaired by MEDC. All parts of the unit are replaceable.

If you acquired a significant quantity of units, then it is recommended that spares are also made available. Please

discuss your requirements with the Technical Sales Engineers at MEDC.

Removing / replacing xenon tube

CAUTION: Before removing the cover assembly, ensure that the power to the unit is isolated.

Unscrew the setscrew in the cover assembly one full turn (2.0mm A/F hexagon key)

Using an 80-90mm hook spanner, unscrew and remove the cover assembly.

Remove the old tube by unscrewing the terminal block fixings. The replacement xenon tube can now be fitted (see

the xenon tube installation sheet, which is supplied with the replacement tube).

To replace the cover, use the same procedure as above but in reverse manner, ensuring the cover is screwed down

tightly and ensuring there is no damage to the thread surfaces or mating faces of the cover and enclosure. There

should be a maximum gap of 0.2mm between the faces of the cover and enclosure to ensure correct o-ring

compression. Once assembled, ensure the set screw in the cover assembly is fully tightened to secure the cover.

GENERAL ARRANGEMENT

3.0 OPERATION

The operating voltage of the unit is stated on the unit label. The beacon is powered directly only

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© Cooper MEDC 2011

CERT LABEL

LENS GUARD

STAINLESS STEEL

TAG LABEL

(OPTIONAL)

CABLE ENTRY

Ø7 MOUNTING HOLE

3 POSITIONS

EXTERNAL EARTH

STUD ASSEMBLY