In-ceiling light intensity sensors PHOTASGARD® DHKF

Output

Product group: WG01

The PHOTASGARD® DHKF light intensity measuring transducer supports six switchable measuring ranges (six devices in one). The sensor has been designed for installation in suspended ceilings. The connecting head is pluggable for quick and easy mounting. The measuring transducer is accommodated in a separate enclosure.

The sensor is specifically adapted to the sensitivity of the human eye. Its greatest sensitivity is in the range of 350 nm to 820 nm. With its special filter, the sensor is therefore ideally suited to exposure measuring of daylight and/or to measuring artificial light of high colour temperature (similar to sunlight).

The sensor device is used for daylight-dependent constant light control, for controlled operation of luminaires, lighting systems, Venetian and canvas blinds, and for controlling light intensity and solar protection (shutters, blinds) to avoid unnecessary heating-up of rooms. Applications are found in green houses, storage and industrial halls, workshops, corridors, residential and commercial buildings.

Power consumption

< 1 W at 24 V DC; < 2 VA at 24 V AC

Sensor

light sensor

Measuring ranges

multi-range switching (via DIP switches)
with 6 switchable measuring ranges
0...500 Lux/ 1 kLux/ 2 kLux/ 5 kLux/ 20 kLux/ 60 kLux
(other individual ranges optional)

Ambient temperature

-22...+158 °F

Electrical connection

2-, or 3-wire connection
0.14 -1.5 mm ² via terminal screws on circuit board

Cable connection

cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 0.4 in) or
M12 connector according to DIN EN 61076-2-101 (optional on request)

Housing

plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)

Housing dimensions

2.8 x 2.5 x 1.5 in (Tyr 1)

Cable gland

M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 0.4 in

Connecting head

made of plastic, material polycarbonate (PC), colour white,
pluggable, Ø = approx. 35 mm, H = approx. 29 mm

sensor cable

PVC, LiYY, 4 x 26 AWG,
KL = approx. 6.5 ft

Mounting (sensor)

inside suspended ceiling,
ceiling cutout Ø = 1.18 in,
cover Ø = < 1.38 in

Protection class

III (according to EN 60 730)