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Description
Room light intensity sensor and measuring transducer
PHOTASGARD® FSHKM-U 1K
Maintenance-free light intensity sensor PHOTASGARD® FSHKM with active output, in in-wall
housing, to determine the illuminance (0…1kLux). The measuring transducer converts the
measured variables into a standard signal of 0 -10 V. The in-wall sensor is mounted in highquality
panel switch programmes, ideally of the brands Gira, Berker, Merten, Jung, Siemens
or Busch-Jaeger (using in-wall adapters) either individually or in combination with light
switches, socket outlets, etc.
The sensor is used to control luminaires, lighting systems, Venetian blinds and canvas blinds and for monitoring the lighting conditions. It is used indoors at workplaces, in corridors, offices, residential and business premises as well as industrial and storage halls as daylight-dependent constant light control, as brightness or twilight sensor and to control sun protection hoods to avoid unnecessary room heating.
The sensor is used to control luminaires, lighting systems, Venetian blinds and canvas blinds and for monitoring the lighting conditions. It is used indoors at workplaces, in corridors, offices, residential and business premises as well as industrial and storage halls as daylight-dependent constant light control, as brightness or twilight sensor and to control sun protection hoods to avoid unnecessary room heating.
The light sensor (photodiode) was specifically adapted to the sensitivity of the human eye.
It is most sensitive in the range of 350 nm to 820 nm. With its special filter, the sensor is
therefore ideally suited to exposure measurement of daylight and/ or for measuring artificial
light of high colour temperature (similar to sunlight).
Technical details
Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
typically < 2.0 VA/ 24 V AC; typically < 1.0 W/ 24 V DC
Measuring accuracy
typically ± 10 % final value
Output
0 - 10 V (linearised)
Sensor
Light sensor (photo diode)
Measuring range
0…1 kLux
(optionally other individual measuring ranges, e. g. 100 kLux)
(optionally other individual measuring ranges, e. g. 100 kLux)
Ambient temperature
storage –20...+ 50 °C
operation 0...+ 50 °C
operation 0...+ 50 °C
Electrical connection
0.14 - 1.5 mm², using plug terminals
Housing
plastic, colour pure white glossy (similar to RAL 9010)
(other colours are possible on request with colour variants
depending on the respective switch programme)
(other colours are possible on request with colour variants
depending on the respective switch programme)
Installation
in in-wall flush box Ø 55 mm
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 20 (according to EN 60 529)