GMP343 Soil Respiration Carbon Dioxide Sensor-Fornitore globale

Room 639, Tangxing Digital Building, No. 6 Tangxing Road, High tech Zone, Xi'an City, Shaanxi Province

product overview

Vaisala's GMP343 soil respiration carbon dioxide sensor is designed for high-precision carbon dioxide measurement, based on advanced CARBOCAP single beam dual band NDIR technology. The GMP343 soil respiration carbon dioxide sensor consists of a carbon dioxide sensor, electronic components, and a housing suitable for long-term field use. There are two models available for users to choose from, flow type and diffusion type. The output signal of the sensor can be adjusted to output voltage or current signals (0-2.5V, 0-5V, 4-20mA), and digital RS-232/RS-485 signal output can also be applied. The measurement range is from 0-1000ppm to 0-2% carbon dioxide.

Users can configure the output of the GMP343 soil respiration carbon dioxide sensor. They can use raw data without filtering or compensation, or they can choose filtering conditions, compensation conditions (temperature, pressure, relative humidity, oxygen), and linearization. Widely used in CO2 soil respiration, ambient temperature CO2 monitoring, plant growth chambers, and OEM applications. The use of diffusion ventilation to eliminate errors caused by pressure differences in pump sampling can be used for soil carbon dioxide monitoring.

Product Features

uExcellent accuracy and stability

uUsed in harsh environments

uThere are two types: diffusion and flow

uWide temperature and humidity range for operation

uOptional temperature, air pressure, humidity, and oxygen compensation

uLow power consumption and thermal diffusion

uShort hot start time

uCompact and lightweight structure

TECHNICAL INDEX

Probe	Vaisala CARBOCAP ®
measuring principle	Single beam dual wavelength NDIR
Range selection	0～1000ppm，0～2000ppm，0～3000ppm，0～4000ppm，0～5000ppm
Accuracy after calibration by the manufacturer (0.5% gas)	± 2.5% reading
At the CO2 calibration point	± 1.5% reading
Below 300ppm	±5ppmCO2
Short term stability (6 hours)	± 5ppm CO2, (at 350ppm CO2)
Long term stability	± 2% reading per year; ± 2% reading/6 months; ± 2% reading/3 months
Flow dependence on liquidity	0.3% reading/liter/minute
Hot start time	Full accuracy ± 0.5%, 10 minutes; Full precision, 30 minutes
Pressure compensation range	700～1300hpa
Flow type velocity	<10 liters/minute
electromagnetic compatibility	Compliant with EMC standard EN61326-1:1997+Am1:1998
Power supply	10～36VDC
Power consumption	＜ 1W, no heating; Maximum 3.5W, including heating
current output	4～20mA
Resolution	14 positions
Voltage Output	0～2.5V，0～5V
Resolution	14 positions
Minimum load	5000 euros
TEMPERATURE DEPENDENCE	± 0.005% reading/℃
Digital Output	RS-232，RS-485
Probe body material	Anodized aluminum plating
Filter housing material	plastics
Protection level	IP66/IP67
CONNECTORS	8 needles, M12
Weight	360g, probe only
Size	Diameter 55mm, length 180mm

For detailed information, please contact the sales personnel of Xi'an Saimo Rui Environmental Technology Co., Ltd. The contact information can be found at the bottom of the website.