Air quality sensor for measuring mixed gas (VOC), temperature and humidity in outdoor applications and in areas requiring a high IP class (e.g. underground stations, tunnels, exhibition halls, cold chains and greenhouses as well as in production halls and warehouses). Depending on the model, the sensor can be configured individually via Thermokon USEapp. Devices with a relay option can be used as 2-point controllers or 2-stage controllers.

Measured valuesVOC, temperature + humidity (depending on the device), each output can be set to get a variable mix of CO2 and VOC by configuration
Output voltage1..3x 0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via app or uConfig), min. load 10 kΩ
Output currentmax. load 500 Ω, A: 1x 4..20 mA, AA: 2x 4..20 mA
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, AA: 15..35 V = SELV
Power consumptionmax. 2,5 W (24 V =) | 4,3 VA (24 V ~)
Measuring range temp.-40..+60 °C | 0..+50 °C | -20..+80 °C | -15..+35 °C, default setting: 0..+50 °C, optionally configurable via app or uConfig
Measuring range humidity0..100% rH non-condensing, enthalpy: 0..85 KJ/kg, absolute humidity: 0..50 | 0..80 g/m³, dew point: 0..+50 | -20..+80 °C, optionally configurable via app or uConfig
Accuracy temperature±0,5 K (typ. at 21 °C within default measuring range)
Accuracy humidity±2% between 10..90% rH (typ. at 21 °C)
Calibrationself-calibration
SensorVOC sensor (heated metal oxide semiconductor)
Enclosureenclosure USE-M, PC, pure white, LCD: cover PC, transparent
Protection (IP)IP65 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
Ambient condition0..+50 °C, max. 85% rH short term condensation
Delivery contentincl. mounting base enclosure USE-M pure white, incl. universal mounting set (cover screw, self-drilling screws, dowels, spax screws and screw cover)
Notesmixed gas sensors detect gases and vapours which can be oxidised (burnt): Body odours, tobacco smoke, exhalations emitted by materials (furniture, carpets, paint, glue ...)
Contact

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Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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