This system uses patented technology to achieve automated synchronous collection of greenhouse gases in soil across multiple channels. After collection, the concentration and flux of greenhouse gases in each channel are accurately measured channel by channel.
Main Features
• The system measures soil greenhouse flux at multiple locations for continuous, unattended, and long-term monitoring, up to 48 open-top flux chambers
• Optional soil emission measurement for N2O, CH4 , CO2 , NH3 , OCS, CO2 isotope, N2O isotope, and others, connected to different NDIR and laser gas analyzers from different manufacturers
• During measurement, open-Top Chambers are automatically closed, then the control system can simultaneously collect gas samples from all chambers, measure changes in gas concentration in the airbags over a set period, and calculate the flux value
• This patent technology enables real synchronous measurement of greenhouse gas fluxes across multiple field plots
Specifications
Greenhouse gas analyzer
simultaneously measure 5 greenhouse gases
Accuracy (1δ,1 sec / 10 sec) ：
CO2：< 0.5 ppm / < 0.15ppm
CH4：< 4 ppb / < 1.2 ppb
N2O:< 500 ppt (1s)
CO：< 500 ppt (1s)
H2O：< 100 ppm (1s)
Measurement range：CO2：0-10000ppm
CH4：1-100ppm
N2O：2 ppb - 500 ppm
CO：1 ppb - 500 ppm
H2O：0-3%
Open Top Chamber
External Dimensions：Height ≥ 1.2 m
Measuring Area：≥ 0 . 64 m² ( open - top combined structure)
Motion Performance：Electric actuator drive
Opening/Closing Time：≤ 20 s
Power：< 5 W
Environmental Conditions：Operating temperature -20℃ to 60℃, built-in 4 fans for forced mixing
In-situ synchronous sampling system in the field
Number of channels:9-48 (Independent solenoid valve, independent air pump)
Control method:Programmed control of rinsing, opening and closing, and synchronous gas intake (parameters can be set independently)
Gas circuit protection:The assimilation chamber is equipped with a gas flushing and rinsing function and has an automatic airtightness check function
Protection level:Solenoid valve pressure resistance ≥6.9 bar; interface IP68; core control box IP65; cable plug-in self-locking