Infinite L-com SRAQ-D622-2 User manual

CO2 TRANSMITTER, 0-10 V OUTPUT, 0-2000 PPM
User Guide for SRAQ-D622-2
Thank you for choosing L-com product. To ensure safe, accurate performance and product longevity, please take a moment to familiarize yourself
with this manual before powering the device. Please keep it handy for future reference. In case of any questions regarding the installation or use of
product, please call us at 800.341.5266.
Reach out to us at [e-mail] and visit our website at www.l-com.com
M_L-com_SRAQ-D622-2_09/2022_R1.0
1
Product Description
The SRAQ-D622-2 sensor uses NDIR technology to detect the CO2 concentration in the air and transmits a corresponding 0 10 V analog output
signal. The device has 1 meter cable and can be easily mounted to a wall or other flat surface. Uses include factory floors, laboratories, server rooms,
office and commercial buildings or other areas where CO2 concentration is a concern.
Features
 NDIR technology sensor
 High accuracy and good stability
 Analog output
 Detection range 0 2000 ppm
 Easy wall-mount installation
Applications
 Monitoring indoor air quality
 HVAC systems
 Agriculture and livestock industry
 Horticulture
 Office and commercial buildings
 Smart home and IOT applications

2
Technical Parameters
Cable Connection
Working voltage 24 VDC ± 0.5 VDC
Working current < 150 mA
Output mode 0 10 V analog
Measuring range 0 2000 ppm
Measurement accuracy ± (50 + 5% FS) ppm
Work environment
Temperature -0 60 °C
Humidity 5 95% RH (Non-condensing)
Storage environment
Temperature -10 65 °C
Humidity 5 95% RH (Non-condensing)
Category Wire Color Definition
Power
Brown Power supply positive (24 VDC)
Black Power supply negative (GND)
Communication
Yellow Vout (+)
Blue Vout (-)
Output Correlation
The 0 10 V analog output are correlated to actual gas concentration, the formula to their correlation is:
Formula: X / (10 V / Y ppm) = Actual concentration
X is the actual output voltage value
Y is the maximum range
Notes
1. Please confirm the polarity and the rated power supply before powering ON the device.
2. Turn the RS level to the TTL level and then connect it to the computer for proper data.

3
Mounting Diagram
Mounting type: Wall mount. Thread hole diameter: 3.7 mm.