Data Sheet

DATA SHEET
Technical changes reserved
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DescriptionDescription
0141 0316-361
Technical Data
Light intesity measurement
Measuring range 0 ... 20000 Lux
Sensor element Perkin Elmer VT93N2
Resistance range 0,2 kΩ ... 10 kΩ
Tolerance ±20 % of resistance value
Linearisation With integrated
parallel resistance (10k)
General
Dimensions Probe Ø 12 x 60 mm
Probe material PVC/POM
Cable material PVC
Connection RJ12-plug, 6-pin
Cable gland M16
Cable length 1,5 m
Guarantee 24 months
Scope of supply Measuring probe with documentation
Art.-No. SENSW-LIF
Light probe for sensor switching module
SENSW-LIF
Characteristic features
• Weather proof light probe
• With stray lens and diffuser
Typical areas of application
• Twilight switch
• Building instrumentation
• Industrial applications
Application areas
Universal light probe for general applications. As twilight switch, the
probe, in combination with switching electronics, controls the outside
illumination or operates rolling shutters or blinds in winter gardens.
Furtherareas of application come up in alarm systems or to monitor
the lighting arrangement. The projected probe is robust and resistant
against environmental effects.
In combination with Universal sensor switching module SENSW-
MOD12V, SENSW-MOD24V, SENSW-GEH230V, this light probe
results into a twilight switch for universal applications.
Resistance table
The LDR-probe is suitable for many applications in which the switching
action is dependent on light intensity. An LDR is  tted as the sensor-
element. The resistance value of probe is directly dependent on the
light intensity. The high slope of resistance curve enables simple eva-
luation circuit. With the integrated parallel resistance, the resistance
curve is pre-linearised.
The following table further gives the relationship of probe resistance
with respect to light intensity (with linearised resistance). The tolerance
in resistance value lies in the range of approx. ±20 %.
Light intesity Resistance
0 Lux 10 kΩ
200 Lux 6,9 kΩ
1000 Lux 4,9 kΩ
10000 Lux 1,5 kΩ
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
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