Moisture measurement soil moisture sensor - rhinoceros

  ⊙ product overview fd-350 soil moisture sensor is composed of power module, transmission module, * zero and temperature compensation module, data processing module, etc
FDR frequency domain method can be used to accurately measure the water content of different soil profiles in real time
The sensor has built-in signal sampling and amplification, zero * shift and temperature compensation functions, and the user interface is simple and convenient
Small and light in appearance, easy to carry and connect

1
Functional features ◆ compact design, easy to carry, simple installation, operation and maintenance
◆ reasonable structural design to ensure service life
◆ the influence of soil quality is small and the application area is wide
◆ high measurement accuracy and reliable performance ensure normal operation
◆ fast response speed and high data transmission efficiency
2
Scope of application
It is widely used for water content measurement in water-saving agricultural irrigation, greenhouse vegetables, flower gardening, grassland and pasture, plant culture, scientific experiment, concrete slurry and other fields

3
Working and storage conditions
Operating temperature: - 40 ~ 85 & deg; C   Working humidity: 0 ~ 100% RH
Storage capacity: - 40 ~ 125 & deg; C   Storage humidity: ＜ 80% (no condensation)
⊙ working principle FDR frequency domain method is used to measure the apparent dielectric constant of soil (& epsilon;) according to the principle of electromagnetic pulse and the propagation frequency of electromagnetic wave in the medium, So as to obtain the soil volumetric water content (& theta; V)

⊙ technical parameter measurement parameter: soil volume moisture content
Measuring range: 0 ~ 100% (adjustable range: 0 ~ 60%)
Measurement accuracy: & plusmn; 3%
Response time: 2 seconds
Measuring frequency: 350MHz
Protection grade: IP68
Probe length: 57mm
Probe width: 14mm
Sealing material: epoxy resin
Measurement area: take the central probe as the center and surround the cylinder with a diameter of 10cm and a height of 10cm around the central probe
Cable length: 2m (standard configuration)
Signal output: (Mark & ldquo; & thorn; & rdquo; as the model you purchased)
  & uml; Voltage type:
Working voltage: 5 ~ 24V ,
Working current: 25 ~ 35mA, typical value 28ma (voltage type)
Output signal: 0 ~ 2V DC (0
4 ~ 2V DC can be customized)
¨ Current type:
Working voltage: 12 ~ 24V
Operating current: & lt; 45mA
Output signal: 0 ~ 20mA (4 ~ 20mA can be customized)
¨ RS485 type: 38ma
Output signal: MODBUS-RTU protocol