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SF-9100 Distributed Soil Respiration System

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The Distributed Soil Respiration System deploysmultiplesingle-point distributed soil respiration units to measure soil CO2 flux at multiple locations,enabling continuous, long-term monitoring of soil carbon flux. Each single-point distributed soil respiration unit includes a CO2 infrared analyzer, controller, respiration chamber, and soil temperature & moisture sensors. Even when multiple devices are distributed across different regions, IoT SIM cards enable nationwide networking, effectively solving several issues of traditional soil respiration measurement systems:

  • Eliminates pipeline length constraints,truly enabling long-distances imultaneous and synchronized monitoring;
  • Enables synchronized measurement across multiple respiration chambers, eliminating errors caused by measurementa synchrony;
  • Shortens the pipelinelength between analyzer and respiration chamber, effectively eliminating errors from pipeline dead volume and improving accuracy.

The Distributed Soil Respiration System greatly improves sample throughput, measurement accuracy, and efficiency, truly achieving long-distance synchronized measurement. It providesa new solution for soil respiration research and represents a technical innovationfor synchronous soil measurement at large spatial scales. It can be widely applied to research in ecology, agronomy,forestry,environmental science, and permafrost studies. This new technology provides novel experimental methods for scientific research, opening up greater possibilities for soil respirationmeasurement at large spatial scales.

Each distributed soil respiration unit can operatein dependently, measuring CO2 concentration changes within the chamber while combining self-measured air temperature, atmospheric pressure, and soil temperature data, then calculating CO2 flux.The acquired raw data and calculated flux results are stored on the SD card. The wireless transmission unit provides remote data transmission, enabling remote parameter modification, measurement status control, and remote data downloading.

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Features

  • Unique distributed soil respiration unit design for continuous, high-precision, fully automatic unattended long-term field monitoring
  • Multi-temporal and spatial synchronous measurement at multiple sites over large spatial scales, significantly improving
  • sample throughput, measurement accuracy, and efficiency
  • Remote networking capability for real-time wireless remote data transmission and networking
  • Ultra-long-distance communication between distributed soil respiration units and wireless transmission units
  • Data encryption ensures data security during wireless transmission
  • No post-processing required; measurement results are automatically calculated and stored
  • Accurate and verifiable flux measurements
  • Each distributed soil respiration unit can connect to auxiliary sensors for soil temperature and soil moisture
  • Simple operation with one-click results
  • Includes post-processing data analysis software
  • Lightweight and rugged system design
  • Unique distributed soil respiration unit design for continuous, high-precision, fully automatic unattended long-term field monitoring
  • Remote networking capability for real-time wireless remote data transmission and networking
  • Data encryption ensures data security during wireless transmission
  • Accurate and verifiable flux measurements
  • Simple operation with one-click results
  • Lightweight and rugged system design

Specifications

Measurement Principle: Non-Dispersive Infrared (NDIR) Gas Analysis Technology

Measurement Range: CO2：0 – 6000 ppm (Standard Range)

CO2：0 – 20000 ppm(Extended Range)

H2O：0 – 60000 ppm

Accuracy: <1% of reading

Repeatability /Precision: <1ppm

Optical Cavity Temperature: Constant temperature control with temperature compensation

Optical Cavity Pressure: Pressure compensation

Communication Interface: WIFI、RS232、SDI-12

Power Supply: Solar power or AC power

Instrument Power: Power at room temperature: 6.5 W

Maximum Power: 40W

Safety Protection: Overload protection

Operating Environment: Temperature: -20-60℃

Humidity: 0-95% RH (Noncondensing)

Waterproof Rating: IP67

Networking Method: 32 GB High-Speed SD Card,

Wireless Remote Storage

Storage Medium: Wireless

Measurement Area: 276.27cm2

Atmospheric Pressure Detection: Range: 15-115 kPa, Accuracy: ±1.5%

Temperature Detection: Range: -25-85℃, Accuracy: ±0.5℃

Product Dimensions: 63.4 X 36.9 X 28.6cm

Product Weight: 11kg

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