Operation; Maintenance - MEDC TH12 Technische Anleitung

Cable termination should be in accordance with specifications applying to the required application. MEDC
recommends that all cables and cores should be correctly identified. Please refer to the wiring diagram provided
with the product.
Ensure that only the correct listed or certified cable glands are used and that the assembly is shrouded and
correctly earthed.
All cable glands should be of an equivalent NEMA/IP rating to that of the beacon and integrated with the unit
such that this rating is maintained.
The internal earth terminal, where fitted, must be used for the equipment grounding.
Once termination is complete, carefully replace the cover assembly back onto the base, avoiding damage to the
mating surfaces. Replace the 6 off M8 screws (6.0mm A/F hexagon key) into the holes in the cover assembly
and tighten evenly. Ensure the O-ring is seated correctly on the cover during re-assembly. Ensure the required
maximum gap of 0.2mm is maintained between the cover and the base once assembled.

3.0 OPERATION

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

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 bulb (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 bulb
CAUTION: Before removing the cover assembly, ensure that the power to the unit is isolated.
© Cooper MEDC 2010 02/11