Technical Data - S+S Regeltechnik Photosgard RHKF Series Operating Instructions, Mounting & Installation

G
®
PHOTASGARD
The room light intensity sensor PHOTASGARD
measuring ranges (three devices in one) measures the luminous intensity and
is used to control lumi naries, lighting systems, Venetian blinds and canvas
blinds, etc., to monitor lighting conditions at workplaces, in storage halls,
workshops and corridors, in indoor areas, in industrial halls, in offices as well
as in residential and business facilities, for daylight- dependant constant light
control, as light intensity or twilight sensor and to control sunshade equip-
ment avoiding unnecessary heating-up of rooms. Therefore it minimizes your
variety of types and stock keeping while covering a greater range of universal
applications. The sensor used in PHOTASGARD
specifically adapted to the sensitivity of the human eye. Its greatest sensitivity
is in the range of 350 nm to 820 nm. Therefore with its special filter the sen-
sor is predestined for exposure measurement of daylight and ⁄ or for measur-
ing artificial light of high colour temperature (similar to sunlight). The case of
the sensor is hermetically tight, the vision panel is protected by a glass plate.

TECHNICAL DATA:

Power supply: .............................. 24 V AC ⁄ DC,
Sensor: ......................................... photodiode with glass case
Measuring ranges: ..................... 0...500 Lux ⁄ 1 kLux ⁄ 20 kLux,
Output: ......................................... 4...20 mA (active) or
Ambient temperature: .............. 0...+ 50 °C
Electrical connection: ................ 0.14 - 1.5 mm²,
Measuring error: ........................ < ± 10 % of final value
Temperature drift: ..................... < ± 5 % of final value ⁄ 10 K
Enclosure: .................................... plastic, material ABS,
Dimensions: ................................. 85 x 91 x 27 mm (Frija I)
Installation: .................................. wall mounting or on in-wall flush box, Ø 55 mm,
Protection class: ........................ III (according to EN 60 730)
Protection type:.......................... IP 30 (according to EN 60 529)
Standards: ................................... CE conformity,
Type ⁄ WG1
RHKF - 0.5 ⁄ 1 ⁄ 20 I
RHKF - 0.5 ⁄ 1 ⁄ 20 U
Optional:
RHKF
® RHKF, with three switchable
®
light intensity sensors was
current consumption max. 10 mA at 24 V DC
multi-range switching (via jumpers)
see schematic diagram
(other individual ranges optional, arbitrarily
selectable, e.g. 100 kLux)
0 -10 V (linearised)
via terminal screws on circuit board
colour pure white (similar RAL 9010),
optional stainless steel
base with 4-hole for mounting on vertically or horizontally
installed in-wall flush boxes for cable entry from the back,
with predetermined breaking point for on-wall cable entry
from top ⁄ bottom in case of plain on-wall installation
electromagnetic compatibility
according to EN 61 326 + A1 + A2,
EMC directive 2004 ⁄ 108 ⁄ EC
Measuring Range
Light Intensity (selectable)
0...500 Lux ⁄ 1 kLux ⁄ 20 kLux
0...500 Lux ⁄ 1 kLux ⁄ 20 kLux
Other individual measuring ranges
Schematic diagram
Factory setting 1 kLux
1 2 3 4
GND-terminals (1) and (3)
are connected on the circuit board.
Connecting diagram
1
UB- GND
2
UB+ supply voltage 24V AC/DC
3
GND
4
Output light intensity 4-20mA (linearised)
Connecting diagram
1 UB- GND
2 UB+ supply voltage 24V AC/DC
3
GND
4 Output light intensity 0-10V (linearised)
Output
Light Intensity
4 ... 20 mA (linearised)
0 - 10 V (linearised)
RHKF
0.5 kLux
1 kLux
20 kLux
RHKF - I
RHKF - U