Xtralis ADPRO Presidium, Инструкция по установке и эксплуатации

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ADPRO Presidium by Xtralis Installation and User Manual
Doc. 12384_05
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Installation Hints
When installing cameras in camera housings, the following hints will avert some nuisance
alarms.
• The application of insect repellent material such as pest control strips or surface spray
reduces any nuisance alarms caused by insects or spiders in or near camera housings.
• Place a bead of silicone across the top of the shield or housing near the front. This prevents
water droplets falling in front of the camera off the front of the sun or rain shield of the
housing. When water hits the bead, it diverts to the side and does not collect along the front
of the housing.
• Rain or sun shields can catch the wind, causing significant camera shake. To restrict
camera movement, appropriately increase the strength of the fixing hardware as the size of
the shield increases.
Interference Caused by High Voltage or Ground Loops
There is significant potential for interference to video signals in some installations, particularly on
sites with high voltage infrastructure, such as electricity substations. High 'ground loop' currents
are produced between equipment earthed at different points around the site. Depending upon
the level and type of interference, the ground loop currents have the potential of causing
nuisance alarms or a reduced detection rate by causing interference on the video signal (i.e. the
picture displayed on the monitor). During the design stage it is important to consider the
likelihood of interference from high voltage or ground loops, and factor counter measures into the
design, such as floating earths, and isolation transformers on video signals.
Installation Adjacent to Roads
Headlights sweeping across the area under surveillance have the potential to cause nuisance
alarms. If the area is near a road and has the likelihood of headlights sweeping over it, consider
some sort of light barrier to ensure the headlights do not cause nuisance alarms. The options for
light barriers includes a solid panel such as plastic or metal facades placed on fences next to the
road, high opacity shade or greenhouse/landscaping cloth, or privacy mesh interwoven on chain-
link fences.
2.6.2 PIR Installation
Alignment
Aligning the PIR with the camera is critical for good performance. There are a number of ways of
checking PIR alignment.
• A slot in the top of some of ADPRO's range of PIRs can be used as a simple method to
align the PIR. Looking through a drinking straw into the slot, or resting a laser pointer in the
slot can be used to help with alignment.
• ADPRO offers an alignment telescope for aligning PIRs across the full range.
• A cordless walk tester (CT 45) is available. During a walk test it indicates a detector alarm
with a beeper and an LED.
• In addition, a tester and software available for each type of ADPRO PIR provides a very
accurate method of aligning the PRO detector. The tester provides an output showing the
IR activity that the PIR is sensing. This requires two people, where one acts as a target
while the other adjusts the alignment of the PIR to cover the required detection area.