CO2 Room Sensor with Temperature
Installation and Operation
#NSA-HH/CO2-R2-CP-C, NSA-HH/CO2-R2O-CP-C, NSA-HH/CO2-R2SO-CP-C
– 11/14/2019
Specifications subject to change without notice.
Catalog No. 11-808-794-01
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Overview
The Carrier Carbon Dioxide Room Series Sensor with Temperature, Setpoint, and Override monitors the
carbon dioxide (CO2) levels in commercial, school, and office-type environments. The concentration of
CO2 is a strong indication of the overall indoor air quality. The NSA-HH/CO2-R2 Series is based on a
single beam, non-dispersive infrared technology and is a cost-efficient solution for measuring carbon
dioxide levels for building climate control. In addition, ABC software eliminates the need for manual
calibration. Carbon Dioxide concentration is measured up to 2,000 ppm and is converted into
proportional analog outputs. The factory default output is 4-20 mA, whereas 0-5 VDC and 0-10 VDC
outputs are field selectable via integral dip switches. Thermistor temperature outputs, along with setpoint
and override, are available as options for this configuration as well. The NSA-HH/CO2-R2 Series
provides data which can be used in conjunction with a Building Automation System or Demand Control
Ventilation to decrease energy consumption while creating a healthier indoor climate.
Applications
: Schools, Office Buildings, Auditoriums, Gymnasiums, Shopping Malls, Theatres, Demand Control
Ventilation & Economizers
Part Numbers
NSA-HH/CO2-R2-CP-C
NSA-HH/CO2-R2O-CP-C
NSA-HH/CO2-R2SO-CP-C
Specifications
Supply Voltage:
24 VAC +/-20%, 50/60 Hz (half-wave rectifier) | 16.5-40 VDC Max.
Power Consumption:
3 VA for 24 VAC, 3W for 24 VDC (peak); <0.9W (average)
Sensing Technology:
Single beam infrared sensing technology (NDIR)
Sensing Method:
Diffusion
Measurement Range Default:
0 to 2,000 ppm
Extended CO2 Ranges:
Up to 10,000 ppm (factory set)
Extended Range Accuracy:
+/- 30 ppm and +/- 5% of reading
CO2 Output Signal:
Output 1
: 0-5 VDC or 0-10 VDC (Default) |
Output 2
: 4-20 mA (500 Ohm Load maximum)
Fail Safe:
Polarity protected
CO2 Accuracy
1
:
+/- 40 ppm +/- 3% of reading (@ 15-35°C; 20-70% RH and 101.3 kPa)
Pressure Dependence:
+ 1.6% reading per kPa (deviation from standard pressure 101.3 kPa)
Response Time:
≤ 2 minutes, diffusion
Warm-Up Time:
< 1 minute (@ full specs < 15 minutes)
Temperature Accuracy:
+/- 1°F (+/- 0.6ºC)
Operating Temperature Range:
32 to 122ºF (0 to 50ºC)
Operating Humidity Range:
0 to 95%, non-condensing
Enclosure:
ABS, Plastic, White, UL94-HB
Sensor Coverage Area:
7,500 sq. ft maximum
Mounting Height:
4-6 ft
Sensor Life
2
:
> 15 years (typical)
Calibration
3
ABC algorithm (Automatic Baseline Correction)
Product Dimensions:
(H) 4.50” (114.30 mm) x (W) 2.75” (69.85 mm) x (D) 1.12” (28.45 mm)
Product Weight:
0.230 lbs (0.104 kg)
Agency Approvals:
EMC Directive 2014/30/EC | RoHS Directive 2011/65/EU
1
Accuracy is de-red after minimum three (3) ABC periods (1 period = 8 days) of continuous operations
2
In normal indoor air quality (IAQ) applications | Corrosive environments are excluded
3
Building CO2 levels must drop to 400 ppm same time during the week for ABC to work properly | If the building is occupied 24 hours /
day, ABC must be turned off
