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Product details
- CS650-L is a multi parameter intelligent sensor that uses innovative technology to monitor soil volumetric moisture content, conductivity, and temperature. Output SDI-12 signal, compatible with multiple data collectors.
Technical principle:
CS650 consists of two 30-cm long stainless steel probes, a printed circuit board, and a shielded cable. The circuit board is sealed in epoxy resin, and shielded cables are used to connect the circuit board to the data collector. CS650 directly measures conduction time, signal attenuation, and temperature; The dielectric constant, volumetric water content, and conductivity are derived from these raw values. The measured signal attenuation is used to correct the loss effect in reflection detection, thereby obtaining accurate conduction time. This loss effect correction can enable moisture content measurement to reach EC ≤ 3 dS m-1 without the need for special soil calibration.
The soil conductivity is also calculated from attenuation measurements, and the thermistor and probe are in thermal contact near the surface of the epoxy resin to measure temperature. Just like measuring moisture content, horizontally installed probes provide accurate soil temperature measurements at the same depth. Temperature measurements in other directions are transmitted into the epoxy resin through probes within the area.
Technical indicators:
Soil volumetric moisture content
Range: 5% to 50% VWC
Accuracy: ± 3% VWC (standard mineral soil), solution conductivity ± 3 dS/m;
Accuracy:< 0.05%VWC
Conductivity:
Measurement range: 0-3dS/m
Accuracy: ± 5% reading+0.05dS/m
Accuracy: 0.5% of BEC
.
Relative dielectric constant:
Scope: 1 to 81
Accuracy: (within 1-40): ± 3% of reading+0.8 solution conductivity ± 8 dS/m
(Between 40-81): ± 2 solution conductivity ± 2.8 dS/m
Accuracy:< 0.02；
Soil temperature:
Scope:- 10 ～ + 70°C
Accuracy: ± 0.5 ° C (buried in soil)
Accuracy: ± 0.02 ° C
Sensing volume: 7800 cm3 (within a radius of 0-7.5 cm around the probe and within a range of 4.5 cm below the probe tip)
Electromagnetic: Complies with CE standards and EN61326 requirements, with anti-static discharge protection
Working temperature:- 10～ +70°C
Probe length: 300mm
Probe diameter: 3.2 mm
Probe spacing: 32 mm
Probe size (H * W * D): 85 mm * 63 mm * 18 mm
Sensor weight: 280 g (excluding cables)
Cable weight: 35g/m
Sensor output: SDI-12; Serial RS-232
Preheating time: 3 seconds
Measurement time: 3 ms measurement, 600 ms to complete command execution
Power supply: 6 to 18 VDC, must meet 45 mA @ 12 Vdc
Power loss:
Dynamic (3 ms): 45 mA typical @ 12 Vdc
80 mA @ 6 Vdc, 35 mA @ 18 Vdc
Static: Standard 135 μ A @ 12 Vdc
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