WRF04 CO2

Room sensor for measuring CO2, temperature and humidity. The maintenance-free sensor forms the basis for a pleasant room climate and increased well-being. Typical applications are office buildings, schools, hotels, cinemas and similar applications. Optionally available with LCD, traffic light function and relay output with configurable threshold values. The device can be directly mounted on the wall, in a flush-mounted standard EU box or a surface-mounted frame (see 'Accessories').

Measured valuesCO2, humidity, temperature
Output voltageVV: 2x 0..10 V, 3xV: 3x 0..10 V, max. load 10 kΩ
Output switch contactrelay with change-over contact (volt free contact, optional), adjustable CO2 threshold value, (valid with version active VV | 3xV)
Network technologyBACnet MS/TP, LON FT (free topology), RS485 Modbus
Power supply15..24 V = (±10%) or 24 V ~ (±10%) SELV
Power consumptionmax. 3 W (24 V =) | 6 VA (24 V ~)
Measuring range temp.0..+50 °C
Measuring range humidity0..100% rH non-condensing
Measuring range CO20..2000 ppm
Accuracy temperature±0,5 K (typ. at 21 °C)
Accuracy humidity±2% between 10..90% rH (typ. at 21 °C)
Accuracy CO2±75 ppm, >750 ppm: ±10% (typ. at 21 °C, 1015 hPa)
Calibrationself-calibration, Dual Channel
SensorCO2: NDIR (non-dispersive, infrared)
DisplayLCD 29x12 mm, monochrome, optional, for RS485 Modbus and LON FT, 3 LEDs indicating air quality (CO2, traffic light function ‘TLF’)
EnclosurePC, pure white
Protection (IP)IP30 according to EN 60529
Cable entrybreaking points top/bottom, rear entry
Electrical connectionterminal block, max. 1,5 mm²
Ambient condition0..+50 °C, max. 85% rH non-condensing
Weight90 g
Mountingflush-mounted on standard EU box (Ø=60 mm), or to be mounted flat onto the surface using screws, with frame for surface mounting (accessory) or directly on the wall, base part can be mounted and wired separately
Notesoptional with display "LCD", optional with relay (floating, max. 24 V / 2 A (ohmic)), optional with traffic light function "TLF"
Contact

Contact us:


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


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