Medc XB15 Manuel d'utilisateur télécharger pdf (Page 3)

1.0 INTRODUCTION

These certified beacons have been designed for use in potentially explosive atmospheres and harsh environmental

conditions. The enclosures are suitable for use offshore or onshore, where light weight combined with corrosion

resistance is required.

The housing is manufactured completely from a U.V. stable, glass reinforced polyester. Stainless steel screws and

mounting bracket are incorporated ensuring a totally corrosion free product.

Units can be painted to customer specification and supplied with identification labels.

2.0 GENERAL SAFETY MESSAGES AND WARNINGS

All instructions and safety messages in this manual must be followed to allow safe installation of the device. The device

must only be installed and maintained by correctly trained site personnel/installers.

i. To reduce the risk of ignition of hazardous atmospheres and shock, do not apply power to the device until

installation has been completed and the device is fully sealed and secured.

ii. To reduce the risk of ignition of hazardous atmospheres and shock, keep device tightly closed when the circuit is

energised.

iii. Before removing the cover for installation or maintenance, ensure that the power to the device is isolated.

iv. Following installation, test the device to ensure correct operation.

v. Following installation ensure a copy of this manual is made available to all operating personnel

vi. When installing the device, requirements for selection, installation and operation should be referred to e.g. IEE

Wiring Regulations and the ‘National Electrical Code’ in North America. Additional national and/or local

requirements may also apply.

vii. Cable termination should be in accordance with specification applying to the required application. MEDC

recommends that all cables and cores should be correctly identified. Please refer to the wiring diagram in this

manual (or separate diagram provided with the unit).

viii. Ensure that only the correct listed or certified cable glands are used and that the assembly is shrouded and

correctly earthed.

ix. Ensure that only the correct listed or certified stopping plugs are used to blank off unused gland entry points and

that the NEMA/IP rating of the unit is maintained.

x. MEDC recommend the use of a sealing compound such as HYLOMAR PL32 on the threads of all glands and

stopping plugs in order to maintain the IP rating of the unit.

xi. The internal earth terminal, where fitted, must be used for the equipment grounding and the external terminal, if

available, is for a supplementary bonding connection where local codes or authorities permit or require such a

connection.

xii. When installing the device, MEDC recommends the use of stainless steel fasteners. Ensure that all nuts, bolts and

fixings are secure.

3.0 INSTALLATION

General

The device can either be directly mounted using the inserts moulded into the back of the enclosure (standard), or an

optional backstrap can be fixed to the base of the device thus giving an optional mounting position for when direct

mounting is deemed unsuitable.

For EN54-23:2010 Compliance the mounting back strap must be positioned in the horizontal plane. If the direct

mount option is ordered the mounting holes must also be on the same horizontal plane as the back strap

The 2 off inserts in the base of the enclosure are designed to accept an M5 screw or bolt.

NOTE: For direct mounting, observe the following formula to determine the required fixing screw length:

Length of screw = Thickness of mounting surface + 10mm

The 2 off Ø8.5mm mounting holes in the optional backstrap have been designed to accept an M8 screw or bolt.

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Medc XB15 Manuel d'utilisateur Page 3

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