The Model CDSN Carbon Dioxide Transmitter accurately monitors the CO2 concentration and temperature in schools, office buildings, and other indoor environments to help achieve LEED® certification and energy savings. In order to achieve a higher level of accuracy, the Model CDSN includes digital barometric pressure adjustment. The CO2 universal output allows users to select the transmitter output to be 4-20 mA, 0-5 VDC, or 0-10 VDC to work with virtually any building management controller. In addition, the housing security feature reduces the likelihood of physical tampering.
Sensor
NDIR, 15 year life expectancy
Range
0 to 2000 PPM
Accuracy
±40 PPM +3% of reading
Response Time
< 120 s (t90)
Warm Up Time
< 2 minutes operational; 10 minutes max accuracy
Temperature Sensor Accuracy
±1°C @ 25°C
Temperature Limits Operating
32 to 122°F (0 to 50°C); Storage: -22 to 158°F (-30 to 70°C)
Humidity Limits
0 to 85%, non-condensing.
Power Requirements
24 VAC/VDC ± 20%, 50/60 Hz
Output Signal
Field selectable; Current: 4-20 mA or 0-20 mA; Voltage: 0-5 V, 1-5 V, 0-10 V, or 2-10 V
Dwyer Omega – Model CDSN Carbon Dioxide Transmitter
The Model CDSN Carbon Dioxide Transmitter accurately monitors the CO2 concentration and temperature in schools, office buildings, and other indoor environments to help achieve LEED® certification and energy savings. In order to achieve a higher level of accuracy, the Model CDSN includes digital barometric pressure adjustment. The CO2 universal output allows users to select the transmitter output to be 4-20 mA, 0-5 VDC, or 0-10 VDC to work with virtually any building management controller. In addition, the housing security feature reduces the likelihood of physical tampering.
Sensor
NDIR, 15 year life expectancy
Range
0 to 2000 PPM
Accuracy
±40 PPM +3% of reading
Response Time
< 120 s (t90)
Warm Up Time
< 2 minutes operational; 10 minutes max accuracy
Temperature Sensor Accuracy
±1°C @ 25°C
Temperature Limits Operating
32 to 122°F (0 to 50°C); Storage: -22 to 158°F (-30 to 70°C)
Humidity Limits
0 to 85%, non-condensing.
Power Requirements
24 VAC/VDC ± 20%, 50/60 Hz
Output Signal
Field selectable; Current: 4-20 mA or 0-20 mA; Voltage: 0-5 V, 1-5 V, 0-10 V, or 2-10 V
Electrical Connection
Screw terminals
Enclosure Material
ABS.
Enclosure Environmental Rating
NEMA 1 (IP30).
Agency Approvals
CE.
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