Controls
35RT-SVX20A-E4
The CO2sensor 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 CO20-2000 ppm
Accuracy at 25°C
< +/- [40 ppm CO2+ 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 CO2
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
CO2sensors
Wall-mounted and duct-mounted
CO2sensors
Power supply requirements
CAUTION!Mak e 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.