Loading the page
Thermokon · Air quality sensor · BACnet
LK+ RS485 BACnet
Duct air quality sensor measuring CO2, VOC, temperature and humidity, with BACnet MS/TP and two analogue outputs, and an optional LCD.
Sign in for trade prices
Availability and lead time confirmed on your quote
Part number682862
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
- Protocol
- BACnet MS/TP over RS485
Electrical
- Power supply
- 15 to 35 V DC or 19 to 29 V AC, SELV
- Power consumption
- Max. 2.5 W (24 V DC), 4.3 VA (24 V AC)
Environment
- Operating temperature
- 0 to +50 °C
- Humidity
- Max. 85% rH, short term condensation
- Protection
- IP65 to EN 60529 IP rating
Performance
- Output signal
- 0 to 10 V or 0 to 5 V, 1 or 2 outputs, min. load 10 kΩ
- Measuring range
- CO2 0 to 2000 or 0 to 5000 ppm; humidity 0 to 100% rH; temperature output 0 to +50 °C default
- Accuracy
- CO2 ±50 ppm +3% of reading; humidity ±2% (10 to 90% rH); temperature ±0.5 K
- Sensor element
- NDIR CO2; heated metal oxide VOC
- Probe length
- 70, 100, 150 or 180 mm (100 mm on the CO2 100 versions)
Physical
- Housing material
- PC, USE-M enclosure
- Colour
- Pure white with transparent cover
Part numbers
- 700368CO2, VOC
- 700382CO2, VOC, LCD
- 700429CO2, VOC, temperature
- 700450CO2, VOC, temperature, LCD
- 682862CO2, VOC, temperature, humidity
- 700528CO2, VOC, temperature, humidity, LCD
- 700405CO2, temperature
- 700436CO2, temperature, LCD
- 700467CO2, temperature, humidity
- 700504CO2, temperature, humidity, LCD
- 704120CO2, temperature, 100 mm probe
- 704137CO2, temperature, 100 mm probe, LCD
- 704144CO2, temperature, humidity, 100 mm probe
- 704151CO2, temperature, humidity, 100 mm probe, LCD
- 700412VOC, temperature
- 700443VOC, temperature, LCD
- 700481VOC, temperature, humidity
- 700511VOC, temperature, humidity, LCD
From the manufacturer's datasheet for LK+ RS485 BACnet.
Overview
The LK+ is a maintenance free duct sensor for CO2 (NDIR), mixed gas (VOC), temperature and humidity. Humidity can also be output as absolute humidity, enthalpy or dew point. It connects to a BACnet MS/TP network, and has analogue voltage outputs as well, with a variable CO2 and VOC mix configurable per output. The LCD versions show readings with a colour changing traffic light function. Settings are made with the USEapp or uConfig. A hinged cover, tool-free wiring and removable cable entries speed up installation. The CO2 100 versions have a 100 mm probe.