The GT5000MX multi-channel long-term soil greenhouse gas flux measurement system is a multi-channel long-term soil greenhouse gas emission monitoring system based on Fourier transform infrared spectroscopy (FTIR) technology produced by Gasmet, Finland. This instrument can continuously measure various major greenhouse gas fluxes in the field for a long time, such as: N₂O，CH₄， CO₂， H₂O. CO and NH₃And the measurement accuracy can reach ppb level.

The GT5000 MX, in conjunction with Eosense's eosAC automatic chamber, can be used for short-term or long-term measurement of soil greenhouse gas fluxes. Through the eosMX multiplexer, the GT5000 can be connected to up to 12 eosAC automatic chambers, and the accompanying eosAnalyze analysis software can be used to calculate greenhouse gas flux data in real-time.

main features

• Using Fourier transform infrared spectroscopy technology;

• Simultaneous measurementN₂O，CH₄，CO₂，H₂O，COandNH₃class6Greenhouse gases can be measured simultaneously at most50Seed gas;

• The process of increasing the detection of gas types is simple and economical, without changing the hardware content;

• Multiple wireless connection methods, such asWI-FIOr Bluetooth.

• No professional knowledge is required, users can operate through navigation;

• One click measurement and real-time online processing of results;

• User defined visual and audio density alerts;

• Five different views display relevant measurement information;

• The automatic chamber has a mechanical arm that can slowly lift and lower;

• The design of the ventilation port ensures stable atmospheric pressure and does not affect measurement through reverse diffusion;

• The internal inlet and outlet circuits of the gas chamber can effectively promote gas mixing.

Parameters

GT5000High precision multi parameter greenhouse gas analyzer

1. Measurement principle: FTIR Fourier transform infrared spectroscopy;

2.Gas measurement type: can be measured simultaneously50Seed gas;

3.Corresponding time: Usually<120sBased on the measured gas and

Measurement time;

4.Battery: Lithium ion battery, single cell battery can sustain3Hour;

5.Charging power supply:115/230V AC；

6.Analysis software:Calcmet(Required)Win7perhaps10Operating system);

7.Data connection:USBEthernet, Bluetooth,WI-FI；

8.Sampling pump flow rate:2 L/min；

9.Gas sampling filtration: with2μmAperture PTFE filter

Sampling probe;

10. Sampling gas in/Export accessories:6mmQuick connector;

11.Shell:

size:450×287×166 mm(H×W×D)；

Material Science:ABS PC；

Protection level:IP54(Suitable for field portable devices);

12.Weight:9.4kg(including battery)/8.0kg(Excluding battery)

13.a spectrometer:

resolving power:200px^-1；

Scanning frequency:10order/s；

Detector: Mercury cadmium telluride(MCT)Photodetector

（Peltier refrigeration);

Beam splitter material: Zinc Selenide（ZnSe）；

Wave number range:900-105000px^-1；

14.sample room

Structure: Multi channel, fixed optical path length5m；

Reflective mirror: fixed, gold-plated;

Volume:0.5L；

operation condition

15.Sampling gas pressure: ambient pressure;

16.Sampling gas temperature: ambient temperature（-5~40℃), no condensation;

17.Operating temperature:-5~40℃ (short-term),5~30℃ (long-term);

performance index

18.Zero drift: every24Drift within hours that is less than the measurement range2%；

19.Sensitivity drift: none;

20.Linear deviation: less than the measurement range2%；

21.Temperature drift: per10KTemperature changes, smaller than the measurement range1%.

22.Pressure impact: for1%The measured pressure changes, and the measured values will appear1%The change. (with pressure compensation)

23.Surrounding environment measurement interval: recommended24h.

24.Detection limits for several major greenhouse gases

H₂OUnit:Vol-%Minimum detection limit:0.010 Vol-%；

CO₂Unit:ppm； Minimum detection limit:5ppm；

CH₄Unit:ppm； Minimum detection limit:40ppb；

N₂OUnit:ppm； Minimum detection limit:7ppb；

NH₃Unit:ppm； Minimum detection limit:70ppb；

CO：Company:ppm； Minimum detection limit:70ppb；

eosACAutomatic opening and closing chamber

EosAC automatic opening and closing chamber is an automatic chamber used for measuring various soil gas fluxes. EosAC can be used in conjunction with GT5000 for measuring and analyzing soil greenhouse gas concentrations. Users can use the software eosAnalyze AC for post-processing and visualization of data.

Parameters

1. Gas chamber volume:1969cm³；

2.Air chamber coverage area:182cm²；

3.Working voltage:12V DC；

4.Measure power:<8W；

5.Standby power consumption:<1W；

6.Weight: Approximately5kg；

7.Pipeline length (between analyzer and chamber):10Rice or30m；

8.Auxiliary analyzer interface:3One;

9. Post processing and visualization software: eosAnalysis AC.

Multi channel gas control conversion module

The eosMX/MX-P multiplexer is a sampling gas path conversion tool used in gas measurement processes. The GT5000 can be connected to 12 automatic chambers through eosMX/MX-P.The eosMX/MX-P is equipped with 12 sampling ports, and users can set up sampling for up to 12 gas paths through the eosLink MX management software.

Parameters

1. Size: eosMX: 46 × 43 × 14 cm,

eosMX-P：50 × 29 × 44 cm；

2.Weight:eosMX：12 kg，

eosMX-P：17 kg；

3.Working voltage:eosMX：100 V AC to 240 V AC，

eosMX-P：12 V DC (± 0.5 V DC)；

4.Measure power:12 W + 8 W；

5. Standby power consumption:<12 W.

Used for net ecosystem exchange（NEE）Transparent automatic chamber for measurement(Optional)

The eos AC LT/LO chamber, due to its larger volume and stackable base design, can be used for NEE research on measuring net exchange capacity of surface ecosystems. All components of eos AC LT/LO can be replaced in the field environment to minimize data loss caused by instrument downtime. The chamber has two auxiliary interfaces that can be connected to additional sensors (such as PAR, soil temperature, soil moisture, etc.) and other environmental data at the measurement location; The built-in fan can effectively promote gas mixing. Users can also choose between side wall transparent or opaque chambers according to their needs.

Parameters

1.Volume of air chamber:0.072m³；

2.Air chamber coverage area:0.21m²；

3.Working voltage:12V DC；

4.Weight: Approximately18kg；

5.Pipeline length (between analyzer and chamber): maximum15-30m；

6.Auxiliary sensor interface:2individual

7.Gas chamber sidewall: transparent or opaque;

8.Sleeve height:10 cmperhaps20 cm；

9.Base: A stackable base used to increase height.

Origin and manufacturer: FinlandGasmet