【Product Overview】
The DJ-2124 Miniature Dual-Layer Soil Lysimeter System is a precision instrument designed for direct measurement of evapotranspiration based on the water balance principle. This compact system enables accurate quantification of rainfall, evapotranspiration, and drainage, making it ideal for scientific research in water balance, material balance, and soil solute transport studies.
【Key Features】
• Compact & Lightweight: Easy transport and rapid field deployment
• Cost-Effective: Group configuration supported to reduce experimental errors
• Durable Construction: SUS304 stainless steel inner tank + PP high-polymer outer tank; rust and corrosion resistant
• Direct Water Balance Measurement: Real-time monitoring of ET components
• Automatic Systems: Integrated drainage and remote data transmission to cloud platform
• Unattended Operation: Solar panel (12V/60W) + 65Ah battery power supply
• Multi-Depth Monitoring: Sensor ports at 100mm, 300mm, and 500mm depths
• Customizable: Sloped land applications available upon request
Technical Specifications:
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Data Logger
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Analog Inputs
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8 single-ended inputs, can configured individually for voltage measurement
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Pulse Inputs
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4
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Voltage Excitation Terminals
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3
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Switched 12 Voltage
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12
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SDI-12
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8
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RS485 / RS232
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4
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Analog Voltage Accuracy
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12-bit resolution, range 5000 mV, input impedance 50 kΩ, basic resolution 1.47 mV, accuracy ±(0.1% reading + 2 LSB) (-20 °C to +40 °C)
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Power Supply
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External battery 11–24 V DC
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Communication Protocols
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Modbus, RS485/RS232, SDI-12, and others
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Internal Storage
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32 MB, capable of storing 64,384 data points;(1 data per hour for 7.3 years)
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Current Drain
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Sleep: 0.24 mA; Idle: 4.6 mA; Measurement: 12 mA (excluding sensors); Network transmission: avg. 40 mA
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Mobile Data Transmission
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Supported, with built-in SIM card for LTE CAT1
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Cloud Platform
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Supported, with free cloud data storage, data processing, historical curve display, API data services, and private platform integration
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GPS
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Built-in high-precision GPS
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Built-in Sensors
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High-precision barometric pressure sensor, motherboard temperature monitoring
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Dimensions
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350 mm × 250 mm × 120 mm
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Weight
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4.5 kg
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Operating Temperature
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-20 °C to +70 °C (customizable to -40 °C)
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Protection Rating
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IP65
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Lysimeter Tank
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Dimensions
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Inner tank: φ600 mm × 600 mm; Outer tank: φ800 mm × 800 mm
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Material
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Inner tank: SUS304 stainless steel; Outer tank: PP high-polymer
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Sensor Ports
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At 100 mm, 300 mm, and 500 mm depths
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Weighing System
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Weighing Range
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0–500 kg
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Measurement Resolution
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Equivalent water depth variation of 0.01 mm
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Infiltration
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Equivalent water depth variation of 0.015 mm
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Output
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RS485/232
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Measurement Method
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Single-point
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Drainage System
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Flow Rate
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1500 ml/min
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Triangular Support
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Overall Height
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2 meters
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Material
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SUS304 stainless steel
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Installation Rod Outer Diameter
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42 mm
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Power Supply System
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Solar Panel
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12 V, 60 W
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Battery
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12 V, 65 Ah (with buried box)
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Data Transmission
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Cloud platform
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3 years –access free
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Soil Sensors
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Sensor quantity
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3 sensors and placed at 100 mm, 300 mm, and 500 mm depths
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Measurement Range
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Moisture: 0.88–81.88%; Temperature: -40 °C to +80 °C; Conductivity: 0–23,000 us/cm
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Protection Rating
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IP68
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bio-equip.cn
Our company is specialized in business of ecological and environmental instruments.
We have our own brand products and also is a sales services center that global dozens of advanced instrument manufacturers in Chinese.
We have an operation center and a tax free warehouse, except that we also establish five regional offices in Shanghai, Beijing, Kunming, xian and Hefei.
We depend on the advanced inventory network management system, creating a mature storage system.
Our goal is to pursue the perfect service and reflect the Dianjiang’s value.
We cooperate with the professional express company, such asUPS, DHL and FEDEX. They can accurately and quickly deliver our products to our customers.
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