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35RT-SVX20A-E4
The CO2 sensor is designed to
operate with a nominal 24 Vac
supply. The power supply should
maintain the voltage between 20 to
26 Vac.
Table 41 - CO
2
sensor wire size
Wire size
(mm²)
Maximum
wire lengh
(m)
0,25 50
0,5 100
1200
Table 40 - Specifications
Wall-mounted Duct-mounted
Measuring range CO
2 0-2000 ppm
Accuracy at 25°C
< +/- [40 ppm CO
2 + 3% of
reading]
(included repeatability and
calibration uncertainty)
< +/- [30 ppm CO2 + 2% of
reading]
(included repeatability and
calibration uncertainty)
Non-linearity < 1.0% full scale
Temperature dependence of output 0.3% full scale/°C
Long-term stability < 5.0% full scale/ 5 years
Recommended calibration interval 5 years
Response time 1 minute (0-63%)
Operating temperature 15-35°C -5-45°C
Storage temperature -20-70°C
Humidity range 0-85% relative humidity
Airflow range 0-10 m/s)
Output signals (jumper selectable) 0-10 Vdc
Resolution of analog outputs 10 ppm CO
2
Recommended external load
Current output: max 500
Voltage output: min. 1000
Power supply Nominal 24 Vac
Power consumption < 5 VA
Warm-up time < 15 minutes
Dimensions (mm) 108 x 80 x 36 80 x 80 x 200
CO2 sensors
Wall-mounted and duct-mounted
CO
2 sensors
Power supply requirements
CAUTION! Make sure that you
connect the power wire only to the
24V terminal. Connecting the power
wire to the output terminal may
result in equipment damage.