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Soil Moisture Meter,IP68 Soil Moisture Sensor Garden Accessory Soil Test Tool Quality You Can Trust

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Features 1.Product Composition: Soil moisture sensor is composed of a power supply module, a transmission module, a zero drift and temperature compensation module, and a data processing module. 2.Powerful Function: The sensor has built in signal sampling and amplification, zero drift and temperature compensation functions, which have little impact on soil quality and are widely used in a wide range of areas. 3.0‑100% Measurement Range: High measurement accuracy, reliable performance, quick response, good interchangeability, and high data transmission efficiency. 4.Compact Design: This soil moisture sensor has a small and light appearance, which is easy to carry and connect. The cable length is about 1.5 meters, which can meet the needs of use. 5.Long Lasting Use: Supports dielectric constant signal output, good sealing, IP68 protection level, can be directly buried in soil and used, not easy to be corroded or rusted. Specification Item Type: Soil Moisture Sensor Material: ABS Weight: Approx. 141g / 5oz Probe Material: Stainless Steel Sealing Material: Epoxy Resin Measurement Parameter: Soil Volumetric Water Content Measuring Range: 0-100% Measurement Accuracy: ±3% Resolution: 0.1% Measurement Area: A cylinder with a diameter of 7cm and a height of 7cm surrounding the central probe with the central probe as the center Probe Diameter: Approx. 3mm / 0.12in Response Time: 2s Cable Length: Approx. 1.5m / 4.9ft Working and Storage Conditions: Working Temperature: -40-85℃ Working Humidity: 0-100%RH Storage Temperature: -40-125℃ Storage Humidity: <80% (No Condensation) Protection Level: IP68 	V: Voltage Type	A: Current Type	R: RS485 Type Operating Voltage	7-24V	12-24V	7-24V Working Current	3-5mA	3-25mA	3-5mA Output Signal	Output Signal 0-2V DC	4-20mA	RTU Protocol RTU Protocol Communication Method: RS485 communication, transmission distance <1000 meters Communication Rate: 9600, n, 8, 1 Communication Protocol: RTU protocol, the factory station number (device address) is station 2, which can be modified as needed. Commands of RTU Protocol Include: Read the value of soil moisture (the factory is station 2) Working Principle: FDR frequency domain method uses the principle of electromagnetic pulse to measure the dielectric constant (ε) of the soil according to the propagation frequency of electromagnetic waves in the medium to obtain the soil volumetric water content (θv). Scope of Application: Suitable for water-saving agricultural irrigation, greenhouses, flowers and vegetables, grassland pastures, soil rapid testing, plant cultivation, scientific experiments, underground oil, gas pipelines and other pipeline anti-corrosion monitoring fields. Wiring: Line Color	Red Line	Black Line	White Line	 Simulation	Power Positive	Power Negative	Signal	 Line Color	Red Line	Black Line	Yellow Line	Brown Line RS485	Power Positive	Power Negative	485A	485B Example of Read Command Format: 02 03 00 00 00 01 84 39 Note: The first byte 02 at the beginning is the station number. If you have modified the station number setting, you should change the first digit 02 to the station number you set. The last two digits 84 39 are CRC16 checksums, and customers need to calculate them by themselves. Example of Command Format of Returned Data: 02 03 02 01 1F BC 1C Note: The 4 and 5 bits of 01 1F are the moisture value, and BC 1C is the returned CRC check. Analysis Method of Soil Moisture Data: Moisture=0X011F/10=28.7% Modify Own Station Number: Method 1: Know the current station number and send the following command 02 10 10 00 00 01 02 00 03 E3 60 Its function is to change the station number from No. 2 to No. 3. Note: Replace italicized characters with the original station number, and replace the regular characters with the value of the target station number that you want to modify. Sending requires the customer to calculate the CRC value by himself. Method 2: Know the current station number and send the following command 02 06 10 00 00 03 CD 38 Its function is to change the station number from No. 2 to No. 3. Note: Replace the italicized characters with the original station number, and replace the regular characters with the value of the target station number that you want to modify. Sending requires the customer to calculate the CRC value by himself. Method 3: Forget the original station number, you need to connect the product to the computer alone, pay attention There can be no other 485 products on the bus. Use station 0 to operate them. The instructions are as follows: 00 10 10 00 00 01 02 00 03 FA 00 Note: The big characters are the target station number value that you want to modify. The customer calculates the CRC check value by himself. This sensor uses the FDR method (frequency domain method) to measure soil moisture, which can correspond to the soil volumetric moisture content. The FDR method (frequency domain method) measuring soil moisture is mainly related to the pH of the measured soil, the density of the soil, the soil quality, and the depth of the measurement. Fault Analysis and Elimination: 1. The sensor output signal is abnormal Check whether the supply voltage is stable Check whether the power supply range is normal Check whether the line is virtual 2. The sensor has no signal output Check whether the positive and negative poles of the power supply and the ground wire are connected correctly Check whether the power supply voltage meets the requirements Care and Maintenance: This instrument is a scientific and technological product with excellent design and functional principles, and attention should be paid to maintenance. The following suggestions will help you effectively use maintenance services. 1. Prevent the instrument from being scratched, maintain the integrity of the external protective film, and increase the service life of the instrument. 2. When using the instrument, please fix the connection parts firmly to avoid damage to the instrument. 3. Rough handling of the instrument will destroy the internal circuit board and precise structure. 4. Do not paint the instrument with paint, as the paint will block debris in the detachable parts and affect normal operation. 5. Use a clean, dry soft cloth to clean the outside of the instrument. 6. Regularly check the power supply of other configuration equipment to ensure that the instrument works normally. 7. When cleaning, turn off the power, take out the sensor, and then gently wipe the surface of the sensor and the inner surface of the constant current device with soft filter paper, and then rinse it with clean water. When cleaning, be careful not to scratch the surface of the sensor. Package list 1 x Soil Moisture Sensor 1 x English Manual

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