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3

INITIAL PREPARATIONS 

 

  The camera 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.

 

 

  All cameras have been tested prior to

 

   shipment.  

 

 

GUIDELINES 

 

The installation of the 

EX70

and 

EX70N

 is 

explained in Sections 1 to 5 listed below.  
It is important that these steps are followed in 
sequence:

 

 

 

1.  Cover Removal 

 

2.  Input Power Connections 

 

3.  Mounting - Camera Base 

 

4.  Camera / LED Array Adjustments 
5.  Camera Re-Assembly 

Summary of Contents for EX70

Page 1: ...Precision Engineered Opto Electronics EX70 70N Explosion Protected Camera INSTALLATION INSTRUCTIONS ...

Page 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 any Bosch Security Systems Inc will not be responsible for injuries or damages resulting from the improper installation or use of any product sold by any Bosch Security Systems Inc their agents distributors or dealers EU Directi...

Page 3: ...rds 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 ...

Page 4: ...reparations 3 Guidelines 3 Section 1 Cover Removal 4 Section 2 Input Power Connections 6 Section 3 Mounting Camera Base 9 Section 4 Camera LED Adjustments 11 Section 5 Camera Re Assembly 15 Section 6 Troubleshooting Camera 20 Section 7 Troubleshooting LEDs 23 Section 8 General Specifications 24 ...

Page 5: ...ngineered for surveillance reliability during daylight operation while the EX70N offers total surveillance protection during day and night situations A voltage regulator circuit allows for 12V dc or 24V ac operation and a range in between also providing protection from voltage surge transient spikes and reverse voltage The EX70 and EX70N cameras are available in several models designed to meet spe...

Page 6: ... Systems if a problem is noted See the rear of the booklet for contact numbers PARTS LIST items supplied with unit EX70 EX70N Camera Installation Instructions booklet ITEMS REQUIRED FOR INSTALLATION not supplied with the shipped unit Long shaft Philips screwdriver Regular Philips screwdriver Small slotted screwdriver Mounting hardware Ensure zone conditions are observed and regional health Safety ...

Page 7: ... internal wiring changes are necessary to accommodate these input voltages Determine the optimum location for the camera All cameras have been tested prior to shipment GUIDELINES The installation of the EX70and EX70N is explained in Sections 1 to 5 listed below It is important that these steps are followed in sequence 1 Cover Removal 2 Input Power Connections 3 Mounting Camera Base 4 Camera LED Ar...

Page 8: ...to be easily rotated Make sure the O Ring gasket at the base of the threads is not damaged or dislodged during the cover s removal process Refer to Figure 1 1 Step 1 1 Place the camera casting assembly on a flat surface Step 1 2 Firmly hold the base with one hand and rotate the cover in a counter clockwise direction with the other hand Do not use a screwdriver or other metal device during this pro...

Page 9: ...5 Video Output Cable Power Input Cable FIGURE 1 1 Cover Removal Cover Set Screw Camera and LED Array Assembly Camera Body Base Casting O Ring Gasket ...

Page 10: ...V ac or 12V dc operation with no change to the polarity of the wires The VRB also connects to the camera and to the Line Lock Board if available See Figures 2 1 and 2 2 NOTE For DC input the input voltage range is 10 5V dc to 40V dc The recommended input current from the power supply should be approximately 1 Amp For AC input the input voltage range is 12V ac to 28V ac The recommended input curren...

Page 11: ...Figure 2 1 shows the VRB used with the EX70 camera Figure 2 2 shows the VRB used with the EX70N camera Power IN Power OUT to camera from supply FIGURE 2 1 12VDC or 24VAC Electrically Isolated Power Board ...

Page 12: ...or 24V ac Electrically Isolated Power Board Camera Day Night Control To Camera Video Out and Video Ground 24V ac for Line Lock Power Input 12V dc 24V ac no polarity LED Array Power Photocell ON OFF Adjustment To Photo cell ...

Page 13: ...lling objects accidental contact with moving objects and unintentional interference from personnel Follow all applicable building codes 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 weight of the camera under all expected conditions of vi...

Page 14: ... 3 MOUNTING CAMERA BASE cont d FIGURE 3 1 Mounting and Dimensional Details Notes 1 Cables can also be routed through the hole on the opposite side of the base 2 Use the two 30 dia holes for base mounting ...

Page 15: ...ting the field of view The lens clearance adjustment can be achieved via the two side screws on the camera bracket The complete VRB camera LED Array chassis must be removed from the base housing for this adjustment See Figure 4 1 for details The lens viewing direction can be also slightly adjusted via the two side screws See Figure 4 2 For larger lens viewing angles adjustments it is recommended t...

Page 16: ...Removal This illustration shows the EX70N camera The EX70 is similar but has no LED Array Note the relationship between the camera board alignment and the housing Remove the chassis mounting screws and lift out the assembly ...

Page 17: ...ture quality the two adjustment screws located on either side of the camera plate allow the lens to be moved closer to the viewing window The lens directional view can also be slightly adjusted during this procedure Adjust the lens foam ring at this time ...

Page 18: ...14 FIGURE 4 3 LED Array Brightness Adjustments The brightness of the LEDs can be adjusted for High H Medium M or Low L intensity by connecting the jumper block as shown ...

Page 19: ...d or conduit to the open side of the base Note The gland and conduit is not supplied Step 5 2 Push the external power video cable into the housing and connect to the power and video of the circuit board Step 5 3 Check that the large O ring gasket at bottom of the Camera Base threads is undamaged Step 5 4 Make sure the Top edge of the VRB Camera LED Chassis is aligned correctly with the Base Refer ...

Page 20: ...fed Step 5 6 Thread the Cover onto the Base making sure the Lens and its Foam Ring are correctly positioned Thread the ring on tight and then tighten the set screw on the cover Refer to Figure 1 1 on page 5 Step 5 6 Seal the NPT entry with silicone to prevent moisture or water from entering ...

Page 21: ...17 FIGURE 5 1 Camera Re Assembly Chassis mounting screws Video Cable Power Input Cable O Ring Gasket Base ...

Page 22: ...18 Note ...

Page 23: ...Voltage Range Check input power connections at the terminal AC input wires to ac IN DC input wires to dc IN Loose wires If connected to dc IN the supply range is 12 24V dc If connected to ac IN the supply range is 13 5 28V ac OR 13 5 30V dc Measure the voltage at the circuit board s Input Power Connector ...

Page 24: ... correct Check BNC connector If still no video connect the camera directly to the monitor Check the video signal If okay the problem is with the interconnections If still no video contact Bosch Security Systems see back cover for contact details _________________ Ensure video cable is correctly matched and terminated with 75 ohms at each end Make sure video cables are similar types ...

Page 25: ...Ground Looping on video cable 24V ac operation Low voltage Check connections Relocate or replace power supply Check the coax cable shield is not touching ground e g at couplings An electrically isolated circuit board or isolation transformer may be required Line Lock adjustment required Check voltage at input power cable Must be 11 6V dc ...

Page 26: ... wait for the LEDs to warm up two minutes LEDs are not ON Cover the photo sensor to activate power to the LEDs up to 30 seconds delay for activation Adjust the photocell s variable resistor towards the ON position Adjust power to the LEDs LEDs are not turning OFF when sufficient ambient light is present Make sure the photo sensor is not covered or hidden behind any object Adjust the photocell s va...

Page 27: ... for both V dc and V ac Input Voltage 10 5 40 dc 12 30V ac isolated Enclosure housing Aluminum casting sealed to IP66 NEMA4X Viewing Window Tempered Glass Dimensions H 3 86 98mm W 4 88 124mm L 4 50 115mm Weight 1 36kg 3 lbs Subject To Change Without Notice ...

Page 28: ...rica Bosch Security Systems B V P O Box 80002 5600 JB Eindhoven The Netherlands Phone 31 40 2577 284 Fax 31 40 2577 330 emea securitysystems bosch com www boschsecurity com Asia Pacific Bosch Security Systems Pte Ltd 38C Jalan Pemimpin Singapore 577180 Phone 65 6319 3450 Fax 65 6319 3499 apr securitysystems bosch com www boschsecurity com Bosch Security Systems Inc 2009 Data subject to change with...

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