Star Sensor Manufacturing Co., Ltd
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CSF11Y Soil Moisture Transmitter Frequency Domain Reflection FDR Saturated Water Content
Based on the principle of frequency-domain reflection FDR, the CSF11 series soil moisture sensor is a dielectric sensor that measures the dielectric constant of the inserted medium by measuring the change in capacitance on the sensor at a frequency of 100MHz. Since water has a very high dielectric constant (80), soil is (3-10). Therefore, when the moisture content in the soil changes, the dielectric constant of the soil also changes considerably. This series of soil moisture sensor circuits reduces the influence of temperature changes on the measurement. Digital technology and durable materials enable high measurement accuracy and low price. The sensor enables long-term continuous monitoring of moisture content at multiple plots and at different soil depths.
| Base parameters | |
| Sensor principle | Frequency Domain Reflection FDR |
| Measurement parameters | Soil volume water content |
| Measuring range | Saturated water content |
| Moisture range | 0-60%m³/m³ |
| Temperature range | 0-50℃ |
| Output signal | 4~20mA, RS485 (Modbus-RTU protocol), 0~1VDC, 0~2.5VDC |
| Supply voltage | 5-24VDC,12-36VDC |
| Moisture accuracy | 3% (after the rate is determined) |
| Temperature accuracy | ±0.5℃ |
| resolution | 0.1% |
| Response time | ＜500ms |
| Operating environment | Outdoor, the suitable ambient temperature is 0-45°C |
| Operating current | 45-50mA, with temperature<80mA |
| Cable length | 5 meters standard (or customized) |
| Housing material | ABS engineering plastics |
| Probe material | 316 stainless steel |
| gross weight | 500g |
| Degree of protection | IP68 |
| Manual | |
| Product Information -Chinese (CN) | |
| Product Information -English (EN) | |
| Protocol -Chinese (CN) |