Datasheet

X-2017, www.findernet.com
I
Advantage of the “light feedback compensation” principle
Light dependent relay where
the lighting being controlled
does not influence the light
level seen by the light sensor
Traditional light dependent
relay where the lighting being
controlled influences the light
level seen by the light sensor
Type 10.32, 10.41 and 10.51
light dependent relay with
“light feedback compensation”
recalculated
OFF
threshold
set threshold
set threshold set threshold
Correct functioning - provided
the sensor can be shielded
from the effects of the
controlled lighting switching
On and Off
Incorrect functioning where
the lamps cycle between On
and Off, because their effect
is being detected by the light
sensor
The innovative principle of
“light feedback compensation”
avoids the annoying and
damaging effects of the lamps
repeatedly “hunting” between
On and Off, due to poor
installation
Ambient light level as measured by the light dependent relay’s integral light sensor.
Ambient light + controlled light level as measured by the light dependent relay’s integral light sensor.
Notes
1. It is good practice to try to achieve a correct installation where the light emitted from the lamp(s) does not influence the light level seen by the sensor,
although the “light feedback compensation” principle will help when this is not fully achievable. In this case it should be appreciated that the “light
feedback compensation” principle may delay slightly the time of Switch Off - beyond the ideal.
2. The compensation principle is not effective where the combined effect of the ambient light and the controlled lighting exceeds 120lux.
3. The 10.32 and 10.41 types are compatible with gas discharge lamps that attain full output within 10minutes, since the electronic circuit monitors
lamps’ light output over a 10minutes period to achieve a true assessment of its contribution to the overall lighting level.
7
10
SERIES
10 SERIES
Light dependent relays 12 - 16A