Soil Moisture Detector, Soil Moisture Tester, Easy Operation, Measures 0-100%, 0.1% Resolution, with 1.5m Cable for Agriculture (Output 4-20mA, Operating Voltage 12-24V)

Features:

1. Product composition: The 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 integrates 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 fields.
3. 0-100% measuring range: high measurement accuracy, reliable performance, fast response, good interchangeability and high data transmission efficiency.
4. Compact Design: This soil moisture sensor has a small and lightweight appearance, easy to carry and connect. The cable length is about 1.5 meters, which can meet the usage needs.
5.Durable Use: Supports constant dielectric signal output, good sealing, IP68 protection level, can be directly buried in the ground and used, not easy to corrode or rust.
Specifications:Item Type: Soil Moisture Sensor
Material: ABS
Weight: Approx.141G / 5oz
Probe Material: Stainless Steel
Sealing Material: Epoxy Resin
Measuring Parameter: Volumetric Soil Water Content
Measuring Resolution: 0-100%
Measuring Accuracy: ±3%
Resolution: 0.1%
Measuring Area: A cylinder with a diameter of 7CM and a height of 7CM at the center of the center.
Probe Diameter: Approx. 3 mm / 0.12 inches
Response time: 2S
Cable length: approx. 1.5 m / 4.9 ft
Working and Storage Conditions:
Working Temperature: -40-85 ℃
Working Humidity: 0-100% RH
Storage Temperature: -40-125 ℃
Storage Humidity: Protection Level: IP68
V: TYPE TYPE A: Current Type R: RS485 3-25mA 3-5mA
Output Signal Output Signal 0-2V DC 4-20MA Protocol RTU Protocol RTU Protocol
Communication Method: RS485 Communication, Transmission Distance Communication Rate: 9600, n, 8, 1
Communication Protocol: RTU protocol, the factory station number (Device Address) is station 2, which can be changed as needed.of soil moisture (the factory is station 2)
Working principle:
The frequency domain method FDR uses the principle of electromagnetic pulse to measure the dielectric constant (ε) of the soil according to the frequency of propagation of electromagnetic waves in the medium to obtain the volumetric water content of the soil. Flowers and vegetables, grassland pastures, rapid soil testing, plant cultivation, scientific experiments, underground oil, gas pipelines and other pipeline anti-corrosion monitoring fields. 03 00 00 00 01 84 39
Note: The first byte 02 at the beginning is the station number. If you changed the station number setting, you need to 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 the returned data command format: 02 03 02 01 1f BC 1C
Note: Bits 4 and 5 of 01 1f represent the humidity value, and BC 1C is the returned CRC.Humidity = 0x011f / 10 = 28.7%
Change the 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 #2 to #3.
Note: Replace the italicized characters with the original station number, and replace the regular characters with the value of the target station number you want to modernize. Sending the command requires the client to calculate the CRC value themselves.
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 number 2 to number 3.
Note: Replace italized characters with the original station number, and replace regular characters with the value of the target station number you want to change. Sending requires the client to calculate the CRC value by themselves.
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 in 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 large characters are the value of the target station number you want to change. The client calculates the CRC check value by itself.
This sensor uses the FDR method (frequency domain method) to measure soil moisture, which can correspond to the volumetric moisture content of the soil.The FDR method (frequency domain method) measuring soil moisture is mainly related to the measured soil pH, soil density, soil quality and measurement depth.
Flaw analysis and elimination:
1. The sensor output signal is abnormal
Check whether the power 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 correctly connected
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 use maintenance services effectively.
1.Prevent the instrument from being scratched, maintain the integrity of the external protection
How to use:(1) 2 Connection methods for the sensor: 1. Vertical Sensor Insertion: Insert the sensor vertically at a 90-degree angle into the soil to be tested. Do not shake the sensor during insertion to prevent bending the probe and damaging it. 2. Horizontal Multiple Sensor Insertion: Insert the sensors into the soil being measured in parallel. This method is used for detecting moisture in multi-layered soil. The moisture heads should be spaced 10 cm apart to prevent mutual interference. Do not shake the sensor during insertion to prevent bending the probe and damaging the stainless steel needle. (2) When you suspect hard lumps or foreign objects in the tested soil, please select the location of the soil being tested to continue testing. Package List: 1 x Soil Moisture Sensor 1 x English Manual Note: 1.Please allow a 0-1 inch error due to manual measurement.Thank you for your understanding.2.Monitors are not calibrated, so the item color displayed in photos may be slightly different from the real object.Please take the real object as the standard.3.Before measurement, soil with uniform density must be selected as the object to be measured.4.Do not insert the sensor probe into the hard soil block to avoid damaging the probe.5.Do not pull the cable directly to move the sensor out of the soil. Hold the soil in the outer epoxy pack with your hand.6.After use, use a brush to remove dust from the probe, and dry the probe with a soft cloth to protect it from moisture and increase its lifespan.