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Thermokon · Room sensor
LDF+ active
Ceiling light sensor with a remote head on a 1.5 m RJ45 cable, in single or dual versions, with 0 to 10 V or 4 to 20 mA outputs and an optional relay.
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Part number707336
Datasheet, PDF
- Quotes answered within 24 hours, no account needed
- DHL, under 15 kg £13.50 ex VAT
- Technical support from the people who commission it
Specification
Communication
- Interface
- Active analogue, with relay on some versions
- Connection
- Plug-in terminal, max. 2.5 mm², bus max. 1.5 mm², M25 cable entry
Electrical
- Power supply
- 15 to 35 V DC or 19 to 29 V AC (SELV)
- Power consumption
- Typ. 0.6 W (24 V DC), 1.5 VA (24 V AC)
Environment
- Operating temperature
- -25 to +65 °C
- Humidity
- Max. 85% rH, non-condensing
- Protection
- IP30 sensor, IP65 housing IP rating
Performance
- Output signal
- 0 to 10 V or 0 to 5 V (min. load 10 kΩ), or 4 to 20 mA (max. load 500 Ω)
- Measuring range
- Selectable: 0 to 200 lux, 0 to 1000 lux, 0 to 2, 10, 20 or 50 klux
- Accuracy
- ±5% of measuring range
- Outputs
- Relay versions: 2 floating NO contacts, 24 V AC or DC, 3 A
Physical
- Cable length
- 1.5 m RJ45 patch cable (2 x 1.5 m on dual versions)
- Housing material
- PC, USE-M housing; acrylic glass prism
- Colour
- Pure white
Part numbers
- 6626041 sensor, straight prism, 0 to 10 V
- 6626281 sensor, diagonal prism, 0 to 10 V
- 6626351 sensor, straight prism, 4 to 20 mA
- 6626421 sensor, diagonal prism, 4 to 20 mA
- 7073361 sensor, straight prism, 0 to 10 V and relay
- 7073501 sensor, diagonal prism, 0 to 10 V and relay
- 7008492 sensors, straight prism, 2 x 0 to 10 V
- 7008562 sensors, diagonal prism, 2 x 0 to 10 V
- 7008632 sensors, straight prism, 2 x 4 to 20 mA
- 7008702 sensors, diagonal prism, 2 x 4 to 20 mA
- 7073742 sensors, straight prism, 2 x 0 to 10 V and relay
- 7073812 sensors, diagonal prism, 2 x 0 to 10 V and relay
From the manufacturer's datasheet for LDF+ active.
Overview
The LDF+ active measures brightness in rooms and workspaces for control of lighting and blinds. The sensor is matched to the response of the human eye. The straight prism suits interior lighting and the diagonal prism suits outdoor lighting. The remote sensor connects to the USE-M housing with a standard RJ45 patch cable, 1.5 m on these versions. Dual versions take two sensors with two outputs, and can give the average, minimum or maximum of both, set in the USEapp. Outputs are 0 to 10 V or 4 to 20 mA, and relay versions add switching contacts for two-point control.