Ref: ds_ARHKF_1008 Ver2.0
Light Level Sensor AHKF/RHKF
Page 1 of 2
Description
Features
These light intensity sensors measures the light level and are
used to control luminaries, lighting systems, Venetian blinds and
canvas blinds, etc. Applications in monitoring lighting conditions
at workplaces, in greenhouses, storage halls, workshops
and corridors, in outdoor areas, in industrial halls, in offices,
in residential and business facilities. It is used for daylightdependant constant light control, as light intensity or twilight
sensor and to control sunshade equipment avoiding unnecessary
heating-up of rooms.
●● Outside or inside versions
●● Choice of output signal
●● Selectable ranges
Technical Specification
PCB Layout
Power supply:
24 V AC ⁄ DC, current
consumption max. 10 mA at 24 V DC
Sensor:
Photodiode
Measuring ranges:
AHKF - 0…500/20K/60K Lux
RHKF - 0…500/1K/60K Lux
Switchable via jumpers
Output:
4...20 mA (active) or 0 - 10 V (linearised)
“Manufactured and supplied to
E. C. Products Limited by
S+S Regeltechnik GmBH”
AHKF
Ambient temperature:- 10…+ 50 °C
Electrical connection: 0.14 - 1.5 mm²
via terminal screws on PCB
Measuring error:
< ± 10 % of final value
Temperature drift:
< ± 5 % of final value ⁄ 10 K
Enclosure:
plastic colour pure white
(similar RAL 9010)
Dimensions:
AHKF - 72 x 64 x 39.4 mm
RHKF - 79 x 81 x 26 mm
Order Codes
AHKF-20I
Outside Light Level Sensor 4...20mA output
AHKF-20U
Outside Light Level Sensor 0...10Vdc output
RHKF-1I
Inside Light Level Sensor 4...20mA output
RHKF-1U
Inside Light Level Sensor 0...10Vdc output
RHKF
Wiring
AHKF/RHKF-U
AHKF/RHKF-I
E.C. Products Limited - Head Office
EC House, Amberley Way, Hounslow
Middlesex, TW4 6BH, United Kingdom
Tel: +44 (0)20 8569 4100 Fax: +44 (0)20 8569 4111
ECP reserves the right to change the information contained in this datasheet as and when required without notice. Users must take care to use the information contained in this leaflet. ECP will not
accept the liability for damages, loss and expenses that may be caused by omissions and errors in the information provided.
Ref: ds_ARHKF_1008 Ver2.0
Light Level Sensor AHKF/RHKF
Page 2 of 2
Dimensions
AHKF:
RHKF:
E.C. Products Limited - Head Office
EC House, Amberley Way, Hounslow
Middlesex, TW4 6BH, United Kingdom
Tel: +44 (0)20 8569 4100 Fax: +44 (0)20 8569 4111
ECP reserves the right to change the information contained in this datasheet as and when required without notice. Users must take care to use the information contained in this leaflet. ECP will not
accept the liability for damages, loss and expenses that may be caused by omissions and errors in the information provided.