WRF04 CO2

Room sensor for measuring CO2 content and optionally temperature and humidity. The maintenance-free sensor creates the conditions for a pleasant room climate and increased well-being. Typical applications are schools, office buildings, hotels, cinemas and similar. The device is additionally available with LED display (traffic light function), LCD and relay output with adjustable threshold values. The device is mounted directly on the wall, on a flush-mounted box or in conjunction with a frame for surface-mounting (see accessories).

Measuring values CO2, humidity, temperature
Output voltage VV: 2x 0..10 V, 3xV: 3x 0..10 V, max. load 10 kΩ
Output switch contact relay with change-over contact (volt free contact, optional), adjustable CO2 threshold value, (valid with version active VV | 3xV)
Network technology BACnet MS/TP, LON FT (free topology), RS485 Modbus
Power supply 15..24 V = (±10%) or 24 V ~ (±10%) SELV
Power consumption max. 3 W (24 V =) | 6 VA (24 V ~)
Measuring range temp. 0..+50 °C
Measuring range humidity 0..100% rH non-condensing
Measuring range CO2 0..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)
Calibration self-calibration, Dual Channel
Sensor CO2: NDIR (non-dispersive, infrared)
Display LCD 29x12 mm, monochrome, 3 LEDs indicating air quality (CO2, traffic light function ‘TLF’), optional, for RS485 Modbus and LON FT
Enclosure PC, pure white
Protection IP30 according to EN 60529
Cable entry breaking points top/bottom, rear entry
Connection electrical terminal block, max. 1,5 mm²
Ambient condition 0..+50 °C, max. 85% rH non-condensing
Weight 90 g
Mounting surface mounted on flush-mounting 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
Notes optional 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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