Filter
Duct Sensors
LK+
The maintenance-free and multi-functional duct air quality sensor measures CO2, mixed gas (VOC), temperature and humidity (relative, absolute, enthalpy, dew point). Optional features, such as a relay output for a 2-point controller or a 2-stage 2-point controller, LCD and traffic light function allow for a wide range of applications. A hinged cover and tool-free wiring as well as removable cable entries ensure a quick and easy installation.
| Application/type | Duct sensor |
|---|---|
| Purpose | Measure values |
| Measured values | temperature, relative humidity, absolute humidity, enthalpy, dew point, CO2, VOC, CO2/VOC mix |
| Interface | LoRaWAN® (868 MHz), RS485 Modbus, RS485 BACnet, LON FT, Passive, Active, 0..5 V, 0..10 V, 4..20 mA, Switch contact |
| Configuration | USEapp, uConfig, BUS, jumper, DIP switches, LoRaWAN® Downlink, each output can be set to get a variable mix of CO2 and VOC by configuration via app or uConfig, (depending on type) |
| Sensor | NDIR (non-dispersive, infrared) |
| Output voltage | 0..10 V, 0..10 V or 0..5 V, 2x 0..10 V or 0..5 V, 3x 0..10 V or 0..5 V, 4x 0..10 V or 0..5 V, adjustable via jumper, live-zero configuration via app or uConfig, min. load 10 kΩ |
| Output current | 2x 4..20 mA, max. load 500 Ω |
| Output switch contact | 2x floating contact NO for 24 V ~ or 24 V = / 3 A |
| Network technology | RS485 Modbus, RS485 BACnet (MS/TP), LON FT (free topology) |
| Radio technology | LoRaWAN® (868 MHz) |
| Data transmission | bidirectional, RTU, half-duplex, baud rate 9.600, 19.200, 38.400 or 57.600, parity: none (2 stop bits), even or odd (1 stop bit) |
| Operating range temperature (°C) | 0..+50 |
| Output signal temperature | scaling analogue output, 0..+50 °C (default setting), selectable from 4 temperature ranges -40..+60 | 0..+50 | -20..+80 | -15..+35 °C, optionally configurable |
| Operating range humidity | max. 85% rH short term condensation |
| Accuracy temperature | ±0,4 K (typ. at 21 °C), ±0,5 K (typ. at 21 °C), within default measuring range, offset setting via app or uConfig |
| Measuring range humidity | 0..100% rH non-condensing, 0..85 KJ/kg enthalpy, 0..50 | 0..80 g/m³ absolute humidity, 0..+50 | -20..+80 °C dew point, optionally configurable |
| Accuracy humidity | ±2% between 10..90% rH (typ. at 21 °C), offset setting via app or uConfig |
| Measuring range CO2 | 0..2000 ppm, 0..5000 ppm, optionally configurable |
| Accuracy CO2 | ±50 ppm +3% of measured value (typ. at 21 °C, 50% rH, 1015 hPa), self-calibration Dual Channel |
| Measuring VOC (mixed gas) | heated metal oxide semiconductor |
| Power supply | 15..35 V = SELV, 19..29 V ~ SELV, battery type AA (2x) |
| Power consumption | max. 2,5 W (24 V =), 4,3 VA (24 V ~) |
| Material in touch with media | Pipe, Ø=19,5 mm, black, length 180 mm, length 150 mm, length 100 mm, length 70 mm, with filter stainless steel wire mesh, without filter |
| Installation length (mm) | 70, 100, 150, 180 |
| Display | LCD 29x35 mm, RGB backlight, with traffic light function, threshold values configurable, optionally configurable via app or uConfig |
| Enclosure | USE-M, impact- and shock-resistant enclosure with quick-release cover, PC |
| Colour | pure white, transparent cover |
| Protection (IP) | IP65, according to EN 60529 |
| Connection | removable cable entry flextherm M20 for wire Ø=4,5..9 mm, removable cable entry M25 with fourfold cable entry for wire with max. Ø=7 mm, removable plug-in terminal, max. 2,5 mm², BUS max. 1,5 mm², relay max. 1,5 mm² |
| Delivery content | incl. mounting flange, incl. mounting set (screws and accessories), incl. battery type AA (2x) |
| Packaging | case packaging |
| 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 ...), air speed 0,3..12 m/s, external antenna available on request |
| Gefahrgut | No |
| Vorschau | Name |
|---|---|
|
|
LK-Plus_Header.jpg |
| Vorschau | Name |
|---|---|
|
|
EU_Konformitätserklärung_LK+_LCD_xxxx.pdf |
|
|
EU_Konformitätserklärung_LK+_RS485_Modbus_Bacnet.pdf |
|
|
EU_Konformitätserklärung_LK+_xxxx.pdf |
|
|
EU_Konformitätserklärung_LK+ xxxx LRW.pdf |
No tender texts available