Air Quality Transducer for CO2 for flush mounting, 0-10 V

SKU: CO2-U/A-U

Discount group: 2

Category: In-Wall

CO2 0-10000 ppm
0-10 V
optional LCD-Display

Delivery time: 11 - 12 Workdays (DE - int. shipments may differ)

327,83 €

excl. 19% VAT , plus

The indoor air quality sensor CO2-U/A registers the CO2 concentration in the air in the environment in the range of 0-10000 ppm via a nondispersive infrared sensor (NDIR). For further processing a linear output signal 0-10 V or a changeover contact is available. The zero point balance depending on the actual ambient conditions can be performed on the device by manual calibration. The quality sensor performs an automatic self-calibration at regular interval, thus ensuring a long-term stable CO2 measurement.

Measurement range CO2:	0-2000 ppm (optional: 0-5000 ppm, 0-10000 ppm, 0-20000 ppm)
Accuracy:	0-2000 ppm: ±50 ppm + 2% f. mv, 0-5000 ppm: ±50 ppm + 3% f. mv, else: ±100 ppm + 5% f. mv (at 20°C, 1013 mbar, auto-calibration ON)
Temperature dependency:	CO2: ±5 ppm / K
Long term stability:	±1% FS/year
Sensor:	Nondispersive infrared sensor (NDIR)
Response time (t90):	< 5 min
Sensor protection:	mounted inside housing
Supply voltage:	24 V AC/DC (±5%)
Current consumption:	Ø 100 mA
Analogue output 0-10 V:	3-wire connection
Alarm output:	potential-free change-over contact max. 24 V (100 mA), threshold can be defined by 270° potentiometer
Switching Hysteresis Relay:	2% FS (without Display), 0,5...5% FS adjustable (with Display)
Electrical connection:	screw terminals max. 1,5 mm²
Automatic calibration:	The automatic CO2 calibration takes place every 7 days, thereby compensating for any drifts and achieving excellent long-term stability. The device must be supplied with fresh air for at least 10 minutes within this interval. This function can be deactivated on the device using a DIP switch.
Pressure dependency:	CO2: 0,16% f. mv/hPa
Running-in time:	10 min
Initial operation:	After switch-on of the device follows a self-test and the tempering, which takes ca. 10 minutes depending on the environmental conditions. At this time the analogue output drifts from the actual measurement value.
Cable gland:	bottom side
Light switch program:	GIRA Standard 55, pure white satin (other on request)
Protection type:	IP30
Protection class:	III
Working range r.H.:	0...98% r.H. in contaminant-free, non-condensing air
Working temperature:	0...+50°C
Manual calibration:	The manual CO2 calibration of the output signal to 400 ppm (zero point) is started by pressing the button on the circuit board (hold it down for approx. 5 seconds until the LED flashes). Before that, continuous operation of min. 10 minutes in fresh air. The LED is deactivated after successful calibration.
Storage temperature:	-20...+50°C
Installation:	into in-wall junction box, diameter 55 mm
Approvals:	CE, EAC, RoHS

CO2, VOC, % r.H., °C Modbus RTU, relay optional lcd display

from 191,19 € *