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 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, optional, for RS485 Modbus and LON FT, 3 LEDs indicating air quality (CO2, traffic light function ‘TLF’) |
| Enclosure | PC, pure white |
| Protection (IP) | IP30 according to EN 60529 |
| Cable entry | breaking points top/bottom, rear entry |
| Electrical connection | terminal block, max. 1,5 mm² |
| Ambient condition | 0..+50 °C, max. 85% rH non-condensing |
| Weight | 90 g |
| Mounting | flush-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 |
| Notes | optional with display "LCD", optional with relay (floating, max. 24 V / 2 A (ohmic)), optional with traffic light function "TLF" |