Bosch EX65, Руководство по установке

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Installation Overview
This chapter details the installation guidelines for the EX65. It is important that you consider
these steps.
!
Warning!
Do not apply power to the unit in an explosive environment unless the housing is fully
installed, the front and back caps are tightened, and all openings are appropriately plugged
and sealed. Disconnect power before servicing or disassembling the unit.
Based on the explosion-protected requirements of the installation location, determine the
appropriate installation method and follow all local guidelines and laws. It is important to
keep the following in mind during installation:
–
The front and back end caps of the unit must be removed for access to the internal
electronics or to adjust the lens. The set screws on the caps are tightened at the factory.
It is easier to remove the front end cap with the sunshield removed.
– It is advisable to set the photocell sensitivity and illuminator intensity prior to installation.
Only make adjustments if necessary as these settings are optimally set from the factory.
See Configuration, page 22.
– The back end cap of the unit must be removed for access to the internal electronics. The
set screws on the caps are tightened at the factory. It is easier to remove the end cap
with the sunshield removed.
– When tightening the end caps, ensure that the threads are clean and lubricated with Jet-
Lube® NCS-30 grease.
– Before tightening the end caps, ensure that the o-rings are clean and lubricated with
Molykote® BG 20 grease (from Dow Corning).
– Ensure that all 3/4-in. NPT plugs are securely tightened in the 3/4-in. NPT conduit
openings and sealed with LA-CO Slic-Tite® Paste with PTFE, apply per manufacturer’s
instructions on the label.
– Ensure that the unit is wired and sealed appropriately either with a conduit seal or a
gland and cable rated for the intended environment. Use LA-CO Slic-Tite® Paste with
PTFE thread sealant on all conduit or gland threads.
– Carefully follow all manufacturers’ instructions for applying grease and paste products.
– All cable entry devices shall be ATEX/IECEx-certified for Ex d IIB T6 Gb and Ex tb IIIC
T85°C Db IP67, rated at least 85 °C (185 °F), suitable for the conditions of use and
installed correctly.
– All unused conduit openings shall have a 3/4-14 in. NPT stopping plug certified for Class I,
Groups C and D; Class II, Groups E, F, and G; and Class III; Class I, Zone 1, AEx d IIB T6;
Ex d IIB T6 X hazardous locations, as supplied with the unit.
– Type 'd' protection requires that the hexagon set screws (M3 X 0.5-6g/6H) are considered
special fasteners. When installed, the set screws must not protrude from the threaded
holes.
– The maximum surface temperature of the unit with aluminum housing will never reach 85
°C when used throughout the ambient operating range of –50 °C to 60 °C (–58 °F to 140
°F).
– If starting up the unit below -40 °C, there may be a delay between when power is applied
to the device and when device begins to operate.
– The joint between the junction box and housing is secured by a thread locker for
permanent securement. This joint shall not be removed because there may be damage to
the flame path threads.
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EX65 Explosion-Protected Illuminator Installation Overview | en 17
Bosch Security Systems Installation Manual 2016.03 | 1.0 | F.01U.321.732