To address the spatiotemporal variability of soil gas flux, LICA has developed a new multi-channel, automatic soil gas flux measurement system, the SF-3500. The SF-3500 can be connected to various greenhouse gas analyzers and stable isotope analyzers to measure the fluxes of multiple gases in soil. It can also enable the sequential switching of multiple flux chambers for measurement, allowing for long-term and continuous monitoring of multi-point soil gas flux.It can connect numerous analyzers to measure multi-parameter flux synchronously, thereby reducing the system error associated with multi-system measurements. In addition, an LCD touchscreen and an Android mobile phone app are added for control and display, eliminating the need for computer settings and a separate display. The SF-3500 remote control and data transmission functions make instrument maintenance easier and simpler, making it more suitable for long-term field measurements. After long-term testing and verification, the SF-3500 demonstrates improved accuracy and stability, making it an ideal choice for prolonged field use.

Main Features

•    It can be used in conjunction with various gas analyzers. In addition to CO2, it can also measure gas fluxes such as N2O, CH4, and NH3, as well as isotope gas fluxes like  ¹³CO2,¹²C¹⁸O¹⁶O, and ¹⁵N¹⁴NO.

•    It can simultaneously connect multiple types of analyzers to perform multi-parameter flux synchronous  measurements, thereby eliminating errors in multi-system measurement systems.

•    LCD touch screen, Android mobile phone APP control and display, no computer required.

•    Automatically calculate gas flux, no need for post-data processing.

•    Remote control and data transmission functions make instrument maintenance easier and simpler, and more suitable for long-term field measurements.

Specifications

u  SF-3500 multiplexer

Chamber interface number： 9 / 18

Storage media：SD card

Display mode：Bluetooth, WIFI

Operation Condition：Temperature -20~45℃

                                    Humidity: 0~95% RH (No condensation)

u  LI-G3001 Greenhouse Gas Analyzer

Measurement principle：CRDS

Simultaneous measurement (CH4, CO2, H2O)

Accuracy (1δ, 10 sec / 100 sec)

CH4            ≤1.2ppb / 0.6ppb

CO2            ≤200ppb / 150ppb  

H2O            ≤65ppm / 40ppm

Measurement range

CH4            0-100ppm，linearly：R²≥0.9998

CO2            0-10000ppm，linearly：R²≥0.9999

H2O            0-3%，linearly：R²≥0.999

Environmental  Conditions：Operating temperature：20~50℃

Dimensions：55.38 x 35.5 x 19 cm

Weight：9 kg

u  SC-22 Automated Soil Flux ChamberSize

Measurement Area： 276.27(cm²)                 

Fixed volume of air chamber：3243.8(cm³)

Cable length：15m

Pump：3.5L/min

Operation temperature: -20-45℃                

Dimensions：32*28*55cm

u  Ordering Information

SF-3500-9：9-channel soil flux measurement system console,standard 2G SD card 1

                     (excluding measurement chamber)

SF-3500-18：18-channel soil respiration measurement system console,standard 2G SD card 1

                     (excluding measurement chamber)

SC-22：Fully automatic soil flux measurement chamber,Pneumatic version,standard 15-meter tubing kit,and one soil collar.

HydraProbe：Soil temperature and humidity sensor

Support: Provide technical support and service for life

Manufacturer: LICA, China