Portable Soil Carbon Flux Automatic Measurement System

Description:

GPS-9000 is a portable measurement system for measuring soil CO₂ flux by dynamic chamber method. GPS-9000 integrates the functions of control measurement, storage and data processing. It can measure the change of CO₂ concentration in the chamber. At the same time, it can calculate and process the CO₂ flux in combination with the data of its own measured air temperature, atmospheric pressure, soil temperature and other sensors.

GPS-9000 can realize wireless operation through handheld controller, display various values measured by the instrument in real time, and modify various setting parameters.

Features:

* Flux measurements are accurate and verifiable;

* Simple operation interface, one click to obtain results;

* Light weight and easy to carry;

* Low power requirements, convenient for outdoor measurement all day;

* Without data post-processing, the measurement results are directly displayed and stored.

Specifications:

* GPS-9000 Control Unit

Measurement principle: non dispersive infrared

Measuring range: CO₂ : 0-6000 ppm, H₂O : 0-60000 ppm

Accuracy: < 1% of the read value

Repeatability / Precision: < 1 ppm

Operating temperature: - 20 ~ 60 ℃

Power requirements: < 40 W

Storage medium: SD card

Communication interface: WiFi, RS-232, SDI-12

Synchronous pump: 12 V, < 0.5 A

Flow rate: 3 L / min

Battery type: 24 v- 8 AH lithium battery

Battery life: 3 - 4 Hours (single battery)

Dimensions: 37 x 30 x 16 cm

Weight: 6.8 kg (including single battery)

* GSC-12 Soil Survey Chamber 

Measuring Area：276.27（cm²） 

Fixed volume of air chamber：3451.00（cm³）

Cable Length：2 m

Power requirements: < 2.2 W

Dimensions：27.5 x 24.5 x 44.5 cm

Weight：3.85 kg

* GA-520A Soil Temperature and Humidity Sensor

Humidity measurement range： 0-100%                   

Accuracy：±2%(0-50%),   ±3%(51-100%)

Temperature measurement range：-30 ~ +70℃       

Accuracy：±0.5℃

Communication mode: SDI-12                                   

Cable Length：2 m