Table of Contents
Advertisement
6.2
Sources of interference
The presence detector detects the movement of heat sources. If a foreign heat source is in
close proximity, this can cause false triggering. Here a distinction must be made between
foreign heat sources and limited visibility as a source of interference.
KNX Technical Manual 2CKA001473B8667 │ 06.02.2017
Limited view of the device
The detection range of the device may be obstructed by
various objects, e.g.:
Lamp strip that have been installed lower than the
■
device
Large plants
■
Partitions
■
Glass panes
■
Foreign heat sources
Rapid changes in temperature surrounding the device
can also trigger unwanted switching, e.g.:
Additional fan
■
Switching on/off of lamps in the direct vicinity (< 1.5
■
m) of the device, in particular incandescent lamps
and halogen lamps
Moving machines, printers, etc.
■
Heat sources without interference effect
If the temperature changes only slowly, this will not affect
the switching behaviour of the device, e.g. on:
Radiators (distance > 1.5 m)
■
Surfaces heated by the sun
■
EDP systems (computers, monitors)
■
Ventilation systems, when warm air does not flow
■
directly into the device
Mounting
│44
Advertisement
Table of Contents
