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Thermokon · Air quality sensor
LA+ active
Air quality sensor for CO2 and mixed gas (VOC), with optional temperature and humidity, for outdoor and high protection areas, with analogue outputs.
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Part number690171
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, M20 or M25 cable entry
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 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), 1 to 4 outputs by version
- Measuring range
- CO2 0 to 2000 or 0 to 5000 ppm; temperature 0 to +50 °C; humidity 0 to 100% rH
- Accuracy
- CO2 ±50 ppm +3% of reading; temperature ±0.5 K; humidity ±2% rH (10 to 90% rH)
- Sensor element
- NDIR (CO2), heated metal oxide (VOC)
- Outputs
- Versions with 2 floating NO relay contacts, 24 V AC or DC, 3 A
Physical
- Housing material
- PC, USE-M housing
- Colour
- Pure white, transparent cover
Part numbers
- 690171CO2, 1 x 0 to 10 V
- 700542CO2, temperature, 2 x 0 to 10 V
- 700573CO2, temperature, humidity, 3 x 0 to 10 V
- 698993CO2, VOC, 2 x 0 to 10 V
- 700566CO2, temperature, 2 x 0 to 10 V and relay
- 693424CO2, 1 x 4 to 20 mA
- 700559CO2, temperature, 2 x 4 to 20 mA
- 700535CO2, VOC, 2 x 0 to 10 V and relay
- 699006CO2, VOC, 2 x 4 to 20 mA
From the manufacturer's datasheet for LA+ active.
Overview
The LA+ active measures CO2 and mixed gas (VOC), with temperature and humidity as options, in places that need a high IP rating: underground stations, tunnels, exhibition halls, cold stores, greenhouses, production halls and warehouses. Outputs are 0 to 10 V or 4 to 20 mA, from one to three depending on the version, and some versions add two relay contacts for two-point or two-stage control. On CO2 and VOC versions each output can be set to a mix of the two gases. The CO2 sensor is NDIR with dual channel self-calibration, and the VOC sensor is a heated metal oxide type.