User Manual

Operation Principles
If it is less than 16.4ft (5m) between the objects, the sensor will cluster the objects and use a weighted
averaging to calculate a virtual object position. If each object gets 50% of the laser beam, the calculated
distance will be in the middle between the objects. If the first object gets 75% and the other 25%, the calculated dis-
tance will move closer to the first object.
3.4. Alarm zones
Users can set up 20 separate alarm zones. Each zone has individual start- and stop-distance, alarm sensitivity and
alarm action.
Using all 20 zones can make it possible to have unique alarms for each 82ft (25m) sections of the sensor’s perimeter
if the zones are equally distributed. The sensor is also able to send the exact intrusion distance for even more accurate
location. In most cases, it is not recommended to have the zones equally distributed – it is better to set the zones to
match the surrounding area.
For example, if the detection area includes a crossing road, it is useful to create zones to match the road, as seen in
the example below.
Each zone in the SiteWatch™ laser sensor has an individual start- and stop-distance. This means the zones can overlap
in any way. It also means that only areas of interest will create alarms. It is also possible to have dierent alarm sensi-
tivity for each zone, allowing for additional fine-tuning of the system.
8
> 16.4ft
(5m)
Calculated distance
SiteWatch™ sensor
> 16.4ft
(5m)
Calculated distance
SiteWatch™ sensor
> 16.4ft
(5m)
Calculated distance
SiteWatch™ sensor
SiteWatch™ sensor
Zone 1
Zone 2
Zone 3
Zone 4
Zone 5
Zone 6
Zone 7
Zone 8
Zone 9
Zone 10
Zone 11
Zone 12
Zone 13
Zone 14
Zone 15
Zone 16
Zone 17
Zone 18
Zone 19
Zone 20
SiteWatch™ sensor
Zone A Zone B
Zone B Zone C Zone D
Zone A
SiteWatch™ sensor