Asense CO2 Room Sensor
Installation and Operation
#NSA-ASENSE-R-LCD-REL, NSA-ASENSE-R-LCD
– 11/14/2019
Specifications subject to change without notice.
Catalog No. 11-808-746-01
Page
1
of
9
Overview
The ASENSE Room Sensor series 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 ASENSE Series is based on a single beam non-dispersive infrared technology and
is a cost-optimized solution for the climate control of buildings and other processes. In addition, ABC
software eliminates the need for manual calibration. The ASENSE Series measures the CO2
concentration in the ambient air up to 2,000 ppm and converts the data into an analog output. This
data can be used in conjunction with a Building Automation or Demand Control Ventilation System
to create a healthier indoor climate. This series features an analog temperature output (32 to 122°F)
and come with combined output options of 0-10 VDC and 0 to 20 mA (4 to 20 mA and 2-10 VDC are
field selectable via an onboard jumper) or 0-
5 VDC for “-5” versions. A relay option is available for
this series as well. The UIP5 software and programming cable offer a configuration/test utility and
provide access to the main features of the ASENSE series.
Applications
: Commercial Office Buildings, Gymnasiums, Shopping Malls, Auditoriums, Theaters, Hospitals & Schools
Part Numbers
NSA-ASENSE-R-LCD-REL
NSA-ASENSE-R-LCD
Specifications
Supply Voltage:
24 VAC/VDC ±20%; 50/60 Hz, 10.5 to 40 VDC maximum (Half-wave rectified)
Power Consumption:
<1W
Wiring Connections:
0.00232 in² (1.5 mm²) screw terminals
Operating Environment:
Residential, commercial and industrial spaces
Operating Temperature:
32ºF to 122ºF (0ºC to 50ºC)
Operating RH:
0 to 85% RH Non-condensing
Warm-Up Time:
<5 minutes (@ full specs 15 minutes)
Accuracy:
CO2
1
: ±30 ppm ±3% of reading |
Temperature
: ±1.8ºF (1ºC)
Repeatability:
±20 ppm ±1% of measured value
Annual Zero Drift:
<± 0.3% of measurement range
Operating Pressure:
+1.6% per 0.145 psi (1 kPa) deviation from normal pressure, (1 Atmosphere = 14.7 psi (1.013
KPa))
Sensing Method:
Single beam Non-dispersive Infrared (NDIR)
Sensor Life
2
:
>15 years
Response Time (T1/e):
<10 seconds @ 30 cc/minutes flow rate, <3 minutes diffusion time
Sensing Range:
CO2
: 0 to 2000 ppm |
Temperature
: -4 to 140ºF (-20 to 60ºC)
Extended CO2 Ranges:
Up to 10,000 ppm (factory set or programming cable required)
Extended Range Accuracy:
+/- 30 ppm and +/- 5% of reading
Coverage Area:
7500 sq. ft. maximum
Mounting Height:
4-
6’ off the floor
Self-Diagnostics:
Complete function check, yellow LED; LCD error indication (display model only)
Display (Optional):
4 digits, 7 segments LCD with ppm indicator
Calibration
3
:
Senseair ABC algorithm (Automatic Baseline Correction)
Outputs:
Output 1 (CO2)
: 0/2 to 10V, 0/4 to 20 mA, 0 to 2000 ppm
Output 2 (Temperature)
: 0/2 to 10V, 0/4 to 20 mA, 32 to 122ºF (0 to 50ºC)
Relay (Optional):
Output 3
: N.O. or N.C. rated 0.5A @ 125 VAC; 1A @ 24 VDC
Relay Trip Point:
1000 ppm (factory set)
Relay Deadband/Hysteresis:
100 ppm (factory set)
Relay Durability:
Mechanical
: 5,000,000 operations minimum (at 36,000 operations/hr)
Electrical
: 100,000 operations minimum (under rated load, at 1,800 operations/hr)
Storage:
-4 to 122ºF (-20 to 50ºC) 0 to 85% RH Non-condensing
