Bosch EX65 Instruction Manual Page 15

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16 en | Installation EX65 Explosion-protected Illuminator
F.01U.162.949 | 1.0 | 2011.03 Instruction Manual Bosch Security Systems, Inc.
4 Installation
This chapter details the installation guidelines for the EX65. It is important that you consider
these steps.
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:
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 Section 6 Configuration, page 20.
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 front 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 or equivalent.
Before tightening the end caps, ensure that the o-rings are clean and lubricated with
Molykote® BG 20 grease (from Dow Corning) or equivalent.
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.
If cable glands are used, they shall be certified for ATEX and IECEx certified for Ex d IIB
Gb and Ex tb IIIB Db IP67 rated at least 85 °C.
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;
AEx tD 21; Ex d IIB; DIP A21 hazardous locations, as supplied with the unit.
Unused conduit openings shall be closed with the provided conduit plug.
The maximum surface temperature of the unit 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.
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 flamepath.
The device was subjected to the resistance to impact test at 2 J. It shall be installed
where it will not be subjected to impact.
For ambient temperatures below –10 °C, use field wiring suitable for the minimum
ambient temperature.
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.
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