GS45 High-concentration CO2 Transmitter

eYc GS45 is a non-dispersive infra-red(NDIR)CO₂ sensor module designed specifically for incubator application. With pigtail wire connections, the GS45 comes with internal and external mounting options.
The sensor module is powered with DC 12 V and it converts the measurement into a linear voltage signal(0 … 5 V corresponding to 0 … 20 _vol.% CO₂)or RS-485(Modbus communication corresponding to 0 … 30 _vol.% CO₂)
The GS45 also comes with simple maintenance features. The BC wiring connection allows the user to perform a quick background calibration(BC)(Sensor exposed to the fresh-air condition)

Incubators / Residential / Commercial / Industrial spaces

Sensing method：Non-dispersive infrared(NDIR)waveguide technology
Sampling method：Diffusion
Response time(T_1/e)：30 sec diffusion time
Measurement range：0 ... 20%_vol.(0 ... 5 V)/ 0 ... 30%_vol.(RS-485)
Digital resolution：0.01%_vol
Repeatability：±0.1%_vol.CO₂±2% of measured value
Accuracy：±0.2%vol.CO₂±3% of measured value
Pressure dependence：+1.6% reading per kPa deviation from normal pressure, 100 kPa
Calibration support：BC input to trigger background calibration at 400 PPM(0.04%_vol)CO₂
(Short circuit to G0 for at least 10 sec)(0 … 5V)/ Calibration by Modbus communication(RS-485)
Voltage output：0 ... 5 V corresponding to 0 ... 20 _vol.% CO₂
Output voltage resolution：5 mV or 0.03% CO2
Output load：≥10 kΩ
Communication interface：RS-485 Modbus communication
Storage temperature range：-40 ... +70°C(Non-condensing)
Sensor life expectancy：＞15 years
Maintenance interval：Every 12 months
Self-diagnostics：Complete function check of the sensor module
Warm-up time：≤1 min
Conformance with the standards：Emission：EN61000-6-3：2001；Immunity：EN61000-6-2：2001；RoHS directive 2002 / 95 / EG
Conformance with standards：Mechanical shock test IEC 60068-2-27 Test Ea；Random vibration test IEC 60068-2-64 Test Fh Vibration immunity test severity：IEC TR 60721-4-5 table 5：IEC 60721-3-5, Class 5M3(3,6 gRMS)“Mechanical conditions in road vehicles in areas without well-developed road systems, light-weighted vehicles, tracked vehicles and self propelled machines, including installations in places which may be directly hit by flying stones”
Random vibration test severity：IED TR 60721-4-2 table 7：IEC 60721-3-2, Class 2M3(3,2 gRMS)“Transportation in lorries, trailers and all other kinds of transportation in areas without well-developed road systems, by trains with shock reducing buffers and by ships” IEC 60721-3-2, Class A(1,0 gRMS)“Instrumentation and automation equipment on ships”
Operating temperature range：-10 ... 50°C
Operating humidity range：0 ... 95%RH(Non-condensing)
Operating environment：Incubators, residential, commercial and industrial spaces.
Power input：DC 8 ... 18 V max rating, stabilized to within 10%(on board protection circuits)
Current consumption：40 mA average / ＜150 mA peak current(Averaged during IR lamp ON, 120 msec) / ＜250 mA peak power(During IR lamp start-up, the first 50 msec)
Electrical connections：4xAWG24 cable for power input(Red, Black)and voltage outputs(Blue)and background calibration(Yellow)
Dimensions：11x7x2.5 cm(Length)x(Width)x(Approximate Height)；External dimensions