Outdoor light intensity sensor PHOTASGARD® AHKF

Output

output model

Product group: WG01

The PHOTASGARD® AHKF light intensity or twilight sensor device supports six switchable measuring ranges (six devices in one) and measures the luminous intensity. It is used to control luminaries, lighting systems, Venetian and canvas blinds, etc., and to monitor lighting conditions at workplaces, in greenhouses, storage halls, workshops, corridors, outdoor areas, industrial halls and offices as well as in residential and business facilities. Further applications also include daylight-dependant constant light control, light intensity monitoring, twilight detection an sushade equipment control to avoid undesired heating-up of rooms.

As a multi-functional device, it minimises your variety of types and stock keeping while covering a greater range of universal applications.

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

Available configurations

Artikelnummer	Bezeichung
1601-1111-1000-000	PHOTASGARD® AHKF-U
1601-1112-1000-000	PHOTASGARD® AHKF-I
200G-6371-1100-001	PHOTASGARD® AHKF-U Q
200G-6371-2100-001	PHOTASGARD® AHKF-I Q

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)

Accuracy

typically < 5 % of final value

Ambient temperature

–30...+70 °C

Electrical connection

0.14 - 1.5 mm²
via terminal screws on circuit board

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 cover for display is transparent !

Housing dimensions

72 x 64 x 43.3 mm (Tyr 1 with Display)

Cable gland

M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm

Installation

on-wall

Protection class

III (according to EN 60 730)

Protection type

IP 65 (according to EN 60 529)*

Standards

CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU