Bosch EX72C7V0922-N User manual

Precision Engineered Opto-Electronics™
EX72
Explosion Protected Camera
INSTALLATION INSTRUCTION
S

Class 2 circuits shall be supplied from a Class 2 transformer, or
a) A Class 2 power supply or device or
b) Where the voltage does not exceed 20 volts, a 5 ampere
(maximum) mini circuit breaker or a 5 ampere non-
interchangeable fuse.
IMPORTANT
Please read this Instruction Booklet prior to installing the
EX70 and EX70N Explosion Protected Camera.
WARNING !
ATEX Approved or CSA Certified / UL Listed CLASS 2 power
adaptors must be used in order to comply with electrical safety
standards.
Only qualified personnel shall install any Bosch Security Systems,
Inc. surveillance product. Bosch Security Systems, Inc. will not be
responsible for injuries or damages resulting from the improper
installation or use of any product sold by Bosch Security Systems,
Inc., their agents,distributors, or dealers
EU Directives covered by this declaration:
72/9/EC Low Voltage Directives
89/336/EEC Electromagnetic Compatibility Directive
94/9/EC Equipment or Protective System for use in
Potentially Explosive Atmospheres.

Certifications / Compliance:
CSA-NRTL: MC 189936
Class: 2258 02
Process Control Equipment – For
Hazardous Locations
2258 82
Process Control Equipment – For
Hazardous Locations – Certified to US
Standards
Safety: Class I, Div 1, 2, Groups B,C,D
Class II, Div 1, 2, Groups E,F,G
Class III
T6 Temperature Code
Environmental: CSA / NEMA TYPE 4X
DEMKO: 07 ATEX 142765X
II2G Ex d IIc T6
ATEX Category 2 (Gas) equipment designed for
installation in Zone1. Protection by constructional safety
using flame proof enclosure, suitable for Coal Disulphide
environments with maximum equipment surface
temperature of 85°c

INDEX – EX72
Page
Description...................................................1
Unpacking....................................................2
Parts List......................................................2
Items Required for Installation.....................2
Mechanical Specifications...........................3
Initial Preparations.......................................6
Guidelines....................................................6
Section 1. Mounting – Camera Housing......7
Section 2. Voltage Input Connections .......11
Section 3. Camera Alignment....................13
Section 4. Camera Adjustments................19
Section 4. Troubleshooting Guide.............27
Section 5. General Specifications..............32

1
DESCRIPTION
The EX72 Explosion Protected Camera has
been designed for surveillance applications in
hazardous areas. The camera’s ATEX-rated
housing consists of a heavy-duty aluminum
casting with a chemical resistant viewing
window. The housing is also NEMA rated for
watertight use.
The EX72 contains either the FMZ300 “Compact
Zoom Module” or the dual board Vari-Focal
Auto-Iris lens camera. The FMZ300 module
features Ex-View HAD performance with a total
zoom of 216x as well as an infrared cut filter for
true color and infrared performance.
A voltage regulator circuit allows for 12V dc or
24V ac operation, as well as a range in between.
It also provides protection from voltage surge,
transient spikes, and reverse voltage.
For additional information and specifications,
please contact your Bosch Security Systems
representative.

2
UNPACKING
Care should be taken when unpacking the
shipped unit. Check the parts list and confirm all
items have been located. Inspect the equipment
thoroughly to ensure nothing was damaged in
transit.
Contact Bosch Security Systems if a problem is
noted. Ssee the rear of the booklet for contact
numbers.
PARTS LIST (items supplied with unit)
•EX72 Camera
•M3 Allen key
•Installation Instructions booklet
ITEMS REQUIRED FOR INSTALLATION
(not supplied with unit)
•mounting hardware & tools
•electrical splices and crimps
•small slotted screwdriver
*Ensure zone conditions are observed and
regional health & Safety regulations are applied.

3
EX72 Camera:
MECHANICAL SPECIFICATIONS
Side View
5.94”
(151mm)
Optional
Mounting
Bracket
EX72
Housing
Cover Base
5.63”
(143mm)
6.34”
(161mm)

4
EX72 Camera:
MECHANICAL SPECIFICATIONS
Front View
5.63”
(143mm)
Housing
only
5.43”
(138mm)
Optional Mounting Bracket
and Hardware

5
EX72 Camera:
INPUT / OUTPUT CABLES
Cover
Camera
Base
Casting
Set-Screw
O-Ring
Gasket
VIDEO OUTPUT
BNC CABLE
POWER INPUT
CABLE
Camera
Module

6
INITIAL PREPARATIONS
•The camera’s voltage regulator board
(VRB) accepts an input voltage of either
12V dc or 24V ac, and a range in-between,
from a regulated power supply.
•The VRB automatically switches between
ac or dc inputs, therefore no internal wiring
changes are necessary to accommodate
these input voltages.
•Determine the optimum location for the
camera.
Section 1: Mounting-Camera Housing.
•All cameras have been tested prior to
shipment.
GUIDELINES
The installation of the EX72 Camera is shown in
Sections 1 and 4 listed below.
It is important that these steps are followed in
sequence:
1. Mounting – Camera Housing
2. Voltage Input Connections
3. Camera Alignment
4. Camera Adjustments

7
1. MOUNTING - CAMERA HOUSING
Caution: Install with the appropriate screws
or drywall anchors to suit the mounting
surface. Select a suitable location that is
protected from accidental damage or
tampering, and environmental conditions
that could exceed the camera’s general
specifications.
See page 32.
Caution: Ensure the selected location is
protected from falling objects, accidental
contact with moving objects, and
unintentional interference from personnel.
Follow all applicable building codes.

8
The following installation guidelines
must be followed:
•Locate the camera such that it cannot
be easily interfered with, either
intentionally or accidentally.
•Select a mounting surface capable of
supporting the combined weight of the
camera and its mounting hardware
under all expected conditions of
vibration and temperature.
•Secure all cabling.

9
The cover of the EX72 must be removed prior to
mounting the camera housing. The set-screw in
the cover must be loose prior to the cover’s
removal. Ensure the gasket is not displaced
during this procedure. Re-attach the cover after
the camera has been mounted.
Figure 1 – 1
Cover Removal
Mountin
g
Holes
Cover Gasket
Optional
Mounting
Bracket
Base Housin
g
Set-Screw

10
Shown below is the optional mounting bracket
and its designated mounting holes.
The attached EX72 camera is not shown for
clarity purposes.
Figure 1 – 2
Optional Mounting Bracket--BRK-17-0001
3.23”
(82.1mm)
(63.5mm)
2.65”
(67.3mm)
Two .75” x .25”
oblong mounting
holes.
2.50”

11
2. VOLTAGE INPUT CONNECTIONS
Connect the input power (ac or dc) to the
camera as shown below.
Figure 2 – 1
Power Input Wiring
Power In
p
ut
Note: The camera is an isolated unit. The input
power wiring is not polarity dependent.

12
Power
IN Power OUT
to
camera
from
supply
Figure 2 – 2
VRB Input / Output Wiring

13
3. CAMERA ALIGNMENT
The EX72 camera, as supplied, is aligned so
that the viewed image is shown in an upright
position with the optional mounting bracket
attached to the bottom of the housing.
(See Figure 1 – 1 on page 9)
The “TOP” designation label on the camera
module mounting plate indicates the correct
upright viewing orientation for the camera lens.
If a particular situation requires the camera to be
mounted to a surface other than the designated
mounting plane, then the camera module must
be removed and the camera’s mounting ring
rotated into the new upright viewing position.
The “TOP” label must always point UP no matter
to what angle the mounting bracket and camera
housing is positioned.
Refer to Figures 3 –1, 3 – 2, 3 – 3, 3 – 4,
and 3 - 5 for details.

14
Remove the three socket screws (A) with the
supplied Allen key and carefully lift out the
camera module.
A
A A
FMZ300CameraModule
Figure 3 – 1
FMZ300 Camera, Module Removal
“TOP”
Label
TOP

15
Remove the three socket screws (A) with the
supplied Allen key and carefully lift out the
camera module.
A
A A
Figure 3 – 2
Dual Board Auto Iris, Vari - Focal
Camera, Module Removal
TOP
“TOP”
Label
Dual Board Camera Module

16
Note the relationship between the “TOP”
position and the threaded mounting hole in the
camera’s mounting ring. This hole designates
the UP position of the camera.
B
B
B
Set-screws (B) are used for the camera’s
mounting ring rotational adjustment.
Figure 3 – 3
Camera Mounting Ring (as shipped)
Camera
Mounting Ring
“TOP”
threaded
mounting
hole