www.profort.com
ver. 4.02
Installation:
Mouting:
The infraSpot is mounted via. double sided tape or using the build-in hole making sure that the ir-sensor
is pointing directly towards the object.
Do not place the infraSpot, buzzer quite close at the object! The signal strength of the sounder will be
affected. Keep at distance of e.g. 1mm.
The best RF-signal:
The infraSpot must be placed if possible in the middle between the object and the wall. Note that the
end of the antenna must not be hidden behind metal or reinforced concrete. This considerably limits the
reach of the antenna.
Positioning:
The infraSpot uses an active reflective ir sensor. Therefore the infraSpot sends out ir light towards the
object and measure the amount of ir reflection coming back. If the amount of ir light changes an alarm
will be send. If the distance to the object is too big an installation error will be send to the central.
Therefore three things are important concerning positioning the infraSpot:
1.
The distance between the infraSpot and the object must be as short as possible. Preferable
quite close in order for the sensor to get as much ir-light back as possible.
2.
The surface the infraSpot reflects must be as bright as possible. Preferable quite white. If the
surface is dark place white tape or paper on the object. White surface reflect more ir-light than
dark surface.
3.
The infraSpot must be placed in darkness in order to avoid ’false’ light from lamp or daylight.
’False’ light will make the sensor believe a change in distance to the object has happened.
Too large distance:
Acceptable distance:
÷
√
Too dark surface:
Good bright surface:
÷
√
Too much ‘false’ light:
Acceptable darkness:
÷
√
