General Safety Messages And Warnings; Installation - MEDC BG3 Bedienungsanleitung

English
1.0 INTRODUCTION
These manual fire alarm call points are available certified intrinsically safe or uncertified. The units are
manufactured from Glass Reinforced Polyester (GRP) which provides a robust, corrosion free construction
and ensures effective and reliable operation in harsh industrial and offshore environments.
The units are available with the following options:
Transparent lift flap
Single pole or double pole switch
Up to 4 x M20 gland entries
Up to 6 x 4.0mm² terminals
LED (optional)
Test key facility

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
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 washer or 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 unit should be mounted on a vertical surface using the two off Ø4.5mm fixing holes in the base. These
have been designed to accept and M4 screw or bolt. Note: the cover assembly needs to be removed to access
the unit fixing holes.
MEDC recommend the use of stainless steel screws.
© MEDC 2016
personnel
07/16