MEDC PAS2 User Manual

Page 2

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1. INTRODUCTION

These certified strobes have been designed for use in potentially explosive

atmospheres and harsh environmental conditions. The glass reinforced polyester

enclosures are suitable for use offshore or onshore, where light weight combined

with corrosion resistance is required.

The strobe 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. INSTALLATION

General

When installing and operating explosion-protected equipment, requirements for

selection, installation and operation should be referred to eg. IEE Wiring Regulations

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

local requirements may apply.

Ensure that all nuts, bolts and fixings are secure.

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.

Note: For non hazardous areas marine use, these strobes are only for use in vessels

65 feet or greater in length.

To reduce the risk of ignition of hazardous atmospheres, conduit runs must have an

appropriate UL or IEC Ex certified sealing fitting connected at the conduit opening

of the enclosure.

Mounting

Direct mounted version

The unit can either be directly mounted using inserts moulded into the back of the

enclosure (standard) or a backstrap (optional) can be fixed to the unit giving an

optional mounting position for when direct mounting is deemed suitable.

MEDC recommend the use of stainless steel screws.

Direct mounting: M5 (13/64”)*

Backstrap mounting: M8 (5/16”)

*Please note: For direct mounting, please observe the following formula to determine

length of fixing screw required:-

Length of screw = Thickness of mounting surface + 25/64” (10mm)

Pole mounted version

The unit can be mounted to a ½” or ¾” pipe and may be mounted in any position. To

mount the unit, thread fully onto conduit and secure with the grub screw provided.

Cable Termination

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

is isolated.