Ceiling-mounted sensor used for the measurement of brightness or ambient light levels. Depending on the prism (straight or diagonal), light levels can be detected reliably and selectively in living rooms, offices and work spaces. The sensor is adapted to the spectral sensitivity of human eyes and contributes to a demand-based efficient control of light and sunblinds/shading systems. The remote sensor can be connected to the enclosure with a conventional RJ45 cable, allowing for an easy installation even in hardly accessible locations. If two sensors are used, the average, minimum or maximal value of both brightness signals can be provided in addtion to the independent measurements of each sensor (configurable via Thermokon USEapp).

Measured valuesluminosity
Output voltage1x/2x 0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via app or uConfig), min. load 10 kΩ
Output current1x/2x 4..20 mA, max. load 500 Ω
Output switch contactRelay: 2x floating contact NO for 24 V ~ or 24 V = / 3 A, optional
Network technologyRS485 BACnet (MS/TP), LON FT (free topology), RS485 Modbus
Power supply15..35 V = or 19..29 V ~ SELV, A: 15..35 V = SELV
Power consumptiontyp. 0,6 W (24 V =) | 1,5 VA (24 V ~), A: max. 20 mA (24 V =), AA: max. 40 mA (24 V =)
Measuring range light0..200 Lux | 0..1000 Lux | 0..2 kLux | 0..10 kLux | 0..20 kLux | 0..50 kLux, selectable at the device
Accuracy Light±5% of measuring range, calibration via Thermokon USEapp
SensorAmbient light sensor with precise optical filtering appropriate to the human eye
Prismacrylic glass clear, straight, diagonal
Enclosureenclosure USE-M, PC, pure white
Protection (IP)IP30 according to EN 60529
Cable entryFlextherm M20 for wire Ø=4,5..9 mm, Relay/BUS: M25 with fourfold cable entry for wire with max. Ø=7 mm, removable
Electrical connectionremovable plug-in terminal, max. 2,5 mm², BUS terminal: removable plug-in terminal, max. 1,5 mm², sensor wire (patch cable) length=1,5 m (default), max. 10 m, plug RJ45
Ambient condition-25..+65 °C, max. 85% rH non-condensing
Delivery contentincl. mounting base enclosure USE-M pure white
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Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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