GT5000 Portable multi-parameter soil respiration measurement system

GT5000 Portable multi-parameter soil respiration measurement system

The GT5000 Portable Multi-Parameter Soil Respiration Measurement System is a portable, high-precision soil greenhouse gas emission monitoring system based on Fourier Transform Infrared Spectroscopy (FTIR) technology from Gasmet, Finland. The instrument can simultaneously measure several major greenhouse gas components, such as N2O, CH4, CO2, H2O, CO and NH3, within seconds and with an accuracy of up to ppb. The GT5000 Portable Multi-Parameter Soil Respiration Measurement System can be used to measure greenhouse gas fluxes in a wide range of environments, such as farmland, wetlands, forests, pastureland, power plants, and fire scenes.

The GT5000 is equipped with the powerful Calcmet software, which supports online viewing of measurement results and comparison and analysis of previous measurements. The portable automated soil respiration chamber is a soil respiration measurement device that collects and measures gases from the soil, allowing for on-the-go, multi-point measurements of soil greenhouse gas fluxes. The soil respiration system is fitted with a portable handle and can be carried easily.

Features

• Adopts Fourier Transform Infrared (FTIR) spectroscopy;
• Simultaneous measurement of 6 greenhouse gases such as N2O, CH4, CO2, H2O, CO and NH3, and up to 50 gases simultaneously;
• Multiple wireless connectivity options such as WI-FI or Bluetooth.
• One-touch measurement and instant online processing of results;
• The design of the vent ensures stable atmospheric pressure and does not affect the measurement through back diffusion;
• Special dynamic pressure balance design to simulate the real environment to a greater extent
• Walk-around, multi-point patrol measurement
• Compact, small size, light weight, easy to carry
• Curved design, waterproof and dustproof effect, suitable for field measurements
• Aviation plug, fast, safe and accurate
• Power supply: built-in 12 V 3000 mA lithium battery

Gas chamber communication mode: Bluetooth

Parameters

1. Measuring principle: FTIR Fourier transform infrared spectroscopy;
2. Types of gases measured: 50 gases can be measured simultaneously;
3. Response time: typically <120s, based on the gas measured and the measurement time;
4. Battery: lithium-ion battery, a single battery can last for 3 hours;
5. Charging power supply: 115/230V AC;
6. Analysis software: Calcmet (requires Win7 or 10 operating system);
7. Data connection: USB, Ethernet, Bluetooth, WI-FI;
8. Sampling pump flow rate: 2 L/min;
9. gas sampling filtration: sampling probe with 2 μm pore size PTFE filter;
10. Sampling gas inlet/outlet fittings: 6 mm quick connector;
11. Shell:

Size: 450 x 287 x 166 mm (H x W x D);

Material: ABS PC;

Protection level: IP54 (for field portable equipment);

12.Weight: 9.4kg (with battery) / 8.0kg (without battery)

13.Spectrometer:

Resolution: 8cm-1;

Scanning frequency: 10 times / s;

Detector: mercury cadmium telluride (MCT) photodetector

(Peltier cooling);

Beam splitter material: zinc selenide (ZnSe);

Wave number range: 900-4200cm-1;

14.Sample chamber

Structure: multi-channel, fixed optical length 5m;

Reflector: fixed, gold-plated;

Volume: 0.5L;

Operating conditions

15.Sampling gas pressure: ambient pressure;

16.Sampling gas temperature: ambient temperature (-5~40℃), non-condensing;
17.Operating temperature: -5~40℃ (short-term), 5~30℃ (long-term);

Performance indicators

18.Zero drift: less than 2% of the measurement range per 24 hours in ambient background;
19.Sensitivity drift: none;
20.Linearity deviation: less than 2% of the measuring range;
21.Temperature drift: less than 1% of the measurement range per 10K temperature change.

(with temperature compensation)

22.Pressure effect: for a 1% change in measured pressure, the measured value will show a 1% change. (With pressure compensation)
23.Ambient environment measurement interval: 24h is recommended.
24.Detection range and detection limit of several main greenhouse gases

H2O: 0-5%; minimum detection limit: 0.010 Vol-%;

CO2: 0-2000 ppm; minimum detection limit: 5 ppm;

CH4: 0-100 ppm; minimum detection limit: 40ppb;

N2O: 0-50 ppm; minimum detection limit: 7ppb;

NH3: 0-100 ppm; minimum detection limit: 70ppb;

CO: 0-200 ppm; minimum detection limit: 70ppb;

Portable Soil Respiratory Chambers (model: SFC-20)

• Chamber type: dark chamber (stainless steel)
• Overall dimensions：30(L)*27(W)*34(H) cm
• Working mode: automatic opening and closing
• Measurement method: Flow-through measurement
• External sensors: air temperature, air pressure, soil temperature and humidity
• Control mode: RECOLK5000 system control
• Chamber volume:2100 cm³
• Measured volume:3670 cm³
• Measuring area:314 cm²