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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

 

Содержание NSA-ASENSE-R-LCD

Страница 1: ...VDC 20 50 60 Hz 10 5 to 40 VDC maximum Half wave rectified Power Consumption 1W Wiring Connections 0 00232 in 1 5 mm 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 CO21 30 ppm 3 of reading Temperature 1 8ºF 1ºC Repeatabilit...

Страница 2: ...irective 2011 65 EU RoHS 3 Directive 2015 863 EU 1 Accuracy is defined 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 some time during the week for ABC to work properly If the building is occupied 24 hrs day ABC must be turned off Changes can be...

Страница 3: ...nge without notice Catalog No 11 808 746 01 Page 3 of 9 Installation 1 Top part 2 Lid 3 Front part 4 Wall plate 5 Screw 6 Label with settings inside the top part Dismounting the sensor Push the front part of the lid upwards while keeping the wallplate steady Fold the front part with the lid forwards and loose it from the hooks 1 ...

Страница 4: ...be max 2 5 mm A Put the top tabs of the front part into the top holes of the wall plate B Press the lower edge of the case onto the wall plate to latch The top part is pushed under the locking hooks of the wall plate and secured with a screw Terminals and jumpers on aSENSE RL The darker positions are default settings Terminals and jumpers are located under the top part CAUTION If the PCB must be r...

Страница 5: ...mA 2 10 VDC or 4 20 mA Same as Output 1 According to positions of OUT1 and start point jumpers 2 According to positions of OUT2 and start point jumpers 2 3 5 6 7 Normally closed relay Relay COM Normally open relay Contact free relay minimum load 1mA 5V rated load 0 5A 125VAC 1A 24VDC Triggered by register Out 3 8 Not Used 1 The ground terminal is used as negative power supply DC input or AC phase ...

Страница 6: ...11 14 2019 Specifications subject to change without notice Catalog No 11 808 746 01 Page 6 of 9 Dimensions and Holes Dimensions of sensor in mm and inches Mounting the sensor to the wall Use screws with head diameter less than 7 5 mm 0 295 inches and head height less than 2 5 mm 0 1 inches ...

Страница 7: ...mming cable into a USB port and go into Device Manager on the computer to determine which port is being used 3 Open the UIP5 software 4 Power the sensor on and plug the programming cable into the sensor The programming cable must have the black wire with the arrow connected towards the top of the connector on PCB as shown in Figure 1 Figure 1 5 Click the Meter tab at the top of page In the Connect...

Страница 8: ...e Catalog No 11 808 746 01 Page 8 of 9 8 Click Connect The unit takes approximately 30 seconds to connect Figure 3 9 You can now adjust your settings ABC can be turned off change ppm change output scale etc 10 After the settings are changed power cycled the sensor Adjusting the trip point on the relay Figure 4 Click SET after adjustment is made ...

Страница 9: ...eset flow regulator for disposables 1K PPM Span Gas for Bump Test https www mesagas com disposable calibration gas carbon dioxide co2 1 Click the CO2 tab at the bottom of the page 2 Ensure the target box under Calibration is set to 0 3 Apply the Nitrogen gas to above the CO2 sensor filter On the Asense Carrier recommens removing the PCB from the enclosure for best results Figure 5 4 Wait until the...

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