LA+ CO2+VOC
Air quality sensor for measuring CO2, mixed gas (VOC), optionally temperature and humidity outdoors and in areas requiring high IP protection class (e.g. underground stations, tunnels, exhibition halls, cold chains and greenhouses as well as in production halls and warehouses). Default values can be indiviudally adjusted via Thermokon USEapp. For devices with CO2 and VOC, every output can be configured to be a mixed output (selectable ratio between CO2 and VOC). Devices with a relay option can be used as 2-point controllers or 2-stage controllers.
| Measured values | CO2, VOC, temperature + humidity (depending on the device), each output can be set to get a variable mix of CO2 and VOC by configuration |
|---|---|
| Output voltage | 2..4x 0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via app or uConfig) |
| Output current | max. load 500 Ω, AA: 2x 4..20 mA |
| Output switch contact | Relay: 2x floating contact NO for 24 V ~ or 24 V = / 3 A, optional |
| Network technology | RS485 BACnet (MS/TP), LON FT (free topology), RS485 Modbus |
| Power supply | 15..35 V = or 19..29 V ~ SELV, AA: 15..35 V = SELV |
| Power consumption | max. 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 humidity | 0..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) |
| Calibration | self-calibration, CO2: Dual Channel |
| Sensor | VOC sensor (heated metal oxide semiconductor), CO2: NDIR (non-dispersive, infrared) |
| Enclosure | enclosure USE-M, PC, pure white, LCD: cover PC, transparent |
| Protection (IP) | IP65 according to EN 60529 |
| Cable entry | Flextherm M20 for wire Ø=4,5..9 mm, Relay/BUS: M25 with fourfold cable entry for wire with max. Ø=7 mm, removable |
| Electrical connection | removable plug-in terminal, max. 2,5 mm², BUS terminal: removable plug-in terminal, max. 1,5 mm² |
| Ambient condition | 0..+50 °C, max. 85% rH short term condensation |
| Delivery content | incl. mounting base enclosure USE-M pure white, incl. universal mounting set (cover screw, self-drilling screws, dowels, spax screws and screw cover) |
| Notes | mixed gas sensors detect gases and vapours which can be oxidised (burnt): Body odours, tobacco smoke, exhalations emitted by materials (furniture, carpets, paint, glue ...) |