1、 Product Introduction
A tubular soil monitoring station is an online monitoring device used to monitor soil profile temperature, soil profile humidity, and soil profile conductivity. It can be widely used in agricultural engineering fields such as smart greenhouses, smart orchards, and smart irrigation by collecting soil temperature, moisture, and conductivity.
2、 Product parameters
Solar panel power: 8W
Standard operating voltage for solar panels: DC5V
Built in lithium battery capacity: 5000mAh
Sensor startup time: 60 seconds
Sensor supply voltage: DC12V
Sensor power supply current: 22mA
Sensor power consumption:0.26W
Communication method:485 Modbus RTUagreement
Measurement parameters: can be measured simultaneously3Layer(10The number of layers below can be customized
Measurement principle: Establish a mathematical model by measuring the soil dielectric constant, and design a spiral measuring electrode to measure soil volumetric moisture content data.
| parameter |
measurement range |
precision |
resolution |
unit |
| soil temperature |
-30~70℃ |
±0.3(-10~70℃) |
0.01 |
℃ |
| soil moisture |
0~100% |
± 3% (loam) high organic matter soil (soil organic carbon content>12%) high clay content soil (clay content>45%) Due to its dielectric relaxation characteristics, calibration may be required for specific soil types |
0.1% |
--- |
| soil electrical conductivity |
0~20000us/cm |
± 3% (0~10000us/cm) ± 5% (full range) |
1 |
us/cm |
3、 Advantages and Characteristics
A single soil tube sensor can simultaneously measure soil parameters at multiple depths, and the monitoring depth can be customized (less than)1M).
The sensor adopts a low-power design, with power consumption as low as0.26WSuitable for long-term unmanned monitoring in the wild.
Each layer of the sensor can independently measure temperature, humidity, and conductivity parameters.
★ The sensor housing is importedPCMaterial, high strength, corrosion resistance, and no pollution to the environment.
★ The waterproof level of the sensor has reachedIP67To cope with long-term outdoor monitoring.
The sensor measures the average humidity within a certain area, which compensates for the limitations of single point measurement.
The sensor adopts a self-designed spiral measuring electrode to improve the contact between the sensor and the soil, and to avoid measurement errors caused by air gaps as much as possible.
4、 Precautions for use
a.The use of sensors should strictly follow the installation and use instructions.
b.When multiple sensors are working simultaneously, they must be spaced apart3Distance above meters.
c.The measurement principle of the sensor is limited, and the sensor measures the center radius3There should be no electromagnetic cables or strong magnetic radiation interference within a meter range to avoid significant measurement errors and damage to sensors.
d.The installation environment of the sensor should comply with the measurement range of the sensor and avoid non-standard behaviors such as exceeding the range.
e.The installation of sensors should avoid environments with strong acids, strong alkalis, heavy oil pollution, and heavy metals.
f.The sensor is a soil measurement sensor, and it is prohibited to use this sensor to measure other substances.
g.The sensor installation environment should not have strong vibrations.
h.Sensors should not be subjected to excessive external forces.
i.Disassembly is prohibited. Unauthorized disassembly is considered non compliant and no further service will be provided.
5、 Structural diagram
6、 Dimensional drawing
7、 Installation method
Drilling method:
1. Take the soil drill bit, handle, and support rod. After completion, place the soil drill vertically on the ground, hold the handle tightly with both hands, and slowly rotate it clockwise.(Attention: Do not apply too much force, make sure to rotate slowly for a few more turns to prevent the drill bit from deviating and causing the hole to become crooked)
2. Remove the soil drill from the hole and place it in a basin. Use tools to collect the drilled soil into the basin for mixing with the mud.(Attention: The first drilling soil should not be collected due to excessive impurities)
3. Repeat the drilling and soil sampling process repeatedly, and try to lightly insert the sensor into the hole during this process(Do not forcefully touch the device to the bottom)To test whether the depth of the hole is appropriate;If there is any lag, use a soil drill to correct it and ensure that the sensor is smoothly inserted and removed;Until the hole depth is flush with the installation position marked by the sensor (zero mark), the drilling is completed.
4. Remove soil impurities such as stones, roots, and insoluble soil blocks from the pot. Grind the soil fine to mix with the mud.
5. Pour in an appropriate amount of water and stir thoroughly until viscous;Loam mud generally cannot be thicker than sesame paste.
6. Slowly pour the mud into the hole, approximately until it reaches the hole1/2position;It can be adjusted according to the actual situation.
7.Slowly insert the sensor into the hole, rotate clockwise and press down. If the speed is too fast, it may cause the bubbles to not be expelled.(Attention: During the process of rotating and pressing again, do not pull up the sensor to prevent gas from being sucked into the hole again)
8.After the sensor is installed to the correct depth, some mud will overflow around the equipment, and grouting is completed;At this point, the installation depth of the sensor is flush with the hole opening.(Attention: Place around the sensor3CMRemove excess mud outside to prevent clumping and water infiltration)
Burial method: Use a pickaxe to dig a deep pit for burying the sensor, and bury the sensor with mud. Refer to the drilling method for details.