4. Photoelectric beams – practical issues
Site Planning
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Intrusion risks assesement & customer expectation evaluation
Site evaluation for limits of use of technology
Enviromanetal conditions evaluation
Detector position planning
Product selection
Channels allocation
5. Photoelectric beams – practical issues
Mounting posts foundations
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Mounting post should be solid & riggid
Detector can not move
Pole should be metal
Foundations should be deep enough
6. Photoelectric beams – practical issues
Cabling
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Apropriate gauge and type
Laid down in classsified conduit or
Use dedicated burried cable type
Preserve core redundancy
Varistors are optional
Secure cabling and juntion boxes
7. Photoelectric beams – practical issues
Heaters
Do not depend on temperature range!
Use of heaters define two phonomena:
• Water condensation
• Frost
8. Photoelectric beams – practical issues
Power supply
• Detectors
24V DC
~40-60mA (normal operation)
• Heaters
24V AC/DC
400mA
• Battery back-up power supply according to EN50131
11. Photoelectric beams – practical issues
Commisioning documentation
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Site plan with detectors indication
Model ant type of used detectors
Way of installation
Power supply and alignment voltage
Power supply for heaters (if applicable)
Channel setting
Detectros serial/lot numbers
Site pictures
12. Photoelectric beams – practical issues
Regular maintenance
(EN50131 grade 2 min.1Y)
Maintenance requirements of Photoelectric beams:
- Open the housing
- Confirm power supply level Tx/Rx
- Check & confirm all connections
- Mounting conditon: fastening of detector, post or foundation for rigid and
solid support
- Clean with soft damp cloth front cover and beam sheads form dirt and dust
- Confirm the beam path for any obstacles in TX/RX line of sight
- Confirm alignment level each of the beam separately
- Maintain 3 point walk-test
Fill in site maintenance log book
13. Outdoor PIR detectors – practical issues
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Site planning
Quality of installation
Sensitivity settings
Regular maintenance
14. Outdoor PIR detectors – practical issues
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Site planning
Intrusion risk assessment & customer expectations evaluation
Siteevaluation for limits of use of technology
Enviromental conditions evaluation
Detector position planning
Product selction
15. Outdoor PIR detectors – practical issues
Installation point
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Stable, riggid detectot mounting
Detector self-protection
Installtion instructions (height, etc)
Orientation towards sun & other potential FA sources
Limited detector FOV
16. Outdoor PIR detectors – practical issues
Precise positioning & limit detector range to desired area
– Most important factor for installation quality
– Select operation area & limit detector FoV to defined zone
– Detection area ALWAYS confirm by a Walk-Test
Improper Detection Area = Most Frequent reason of FA!
17. Detection Area Adjustoment - Examples
NO Alarm!!
False
Alarm!!
Hous
e
Area masking
Area masking
NO Alarm!!
False
Alarm!!
19. Outdoor PIR detectors – practical issues
Detector sensitivity settings
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Should correspond to local enviroment conditions
Should correspond to specific site conditions
Requires longer testing in variety of circumstances
Recommended to start form factory defaults
Detection quality shoudl ALWAYS be confirmed by Walk-Test
20. Outdoor PIR detectors – practical issues
Commisioning documentation
– Site plan with detectors locations & each FoV
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Type and models of used detectors
Installation height & method
Power supply voltage
Detectro function settings
Serial/Lot number
Pictures – site, detector, settings, FoV
21. Outdoor PIR detectors – practical issues
Regular maintenance
(EN50131 grade 2 min.1Y)
Maintenance requirements for outdoor PIR:
- Open the housing
- Confirm power supply voltage
- Confrim all connections
- Confirm mounting condition: rigid, solid mounting, stable surface
- Clean the lens with damp, soft cloth or pressured air.
- Clean iside detectro with pressurised air
- Confirm cable inlets etc., for water and insects ingress protection
- Confirm detector FoV for potential obstacles and FA factors.
- Confirm detector operation by Walk-Test
Fill in site meanitenance log book
