Hebei Longyuntong LYA-8F3B soil nutrient rapid tester

Overview of soil temperature and humidity,EC,PH,nitrogen,phosphorus and potassium sensors

The soil temperature part is composed of imported ST-1-PT1000 precision platinum resistor and high-precision sensor from German Heraeus Company. The sensor part is composed of power module,temperature sensing module,transmission module,temperature compensation module and data processing module,etc.,which completely solves the measurement error introduced by platinum resistance due to its own characteristics. The sensor has a zero-drift circuit and a temperature compensation circuit,which is very useful for use. The environment has high adaptability.

The soil moisture part is a high-precision and high-sensitivity sensor for measuring soil moisture based on the principle of frequency domain reflection and using high-frequency electronic technology. By measuring the dielectric constant of soil,it can directly and stably reflect the true moisture content of various soils,and can measure the volume percentage of soil moisture. It is the current international soil moisture measurement method.

The soil conductivity part uses a stainless steel probe to convert the soil conductivity into an analog or digital signal through the sensor. During the development process,the advanced technology of similar foreign instruments was absorbed,and combined with the actual situation and use requirements of our country,the conductivity value was converted into corresponding analog or digital signals. After this conductivity sensor is buried in the soil,it directly measures the conductivity of soluble salt ions in the soil solution.

During the development process,the soil pH value part absorbed the advanced technology of similar foreign instruments,and combined with my country's actual conditions and usage requirements,converted the pH value into a corresponding analog or digital signal to measure the pH in the soil.

The soil nitrogen,phosphorus and potassium section determines the fertility of the soil by detecting the nitrogen,phosphorus and potassium content in the soil,thus facilitating the customer's systematic assessment of soil conditions.

Characteristics of soil temperature and humidity,EC,PH,nitrogen,phosphorus and potassium sensors

(1) This sensor is designed to be compact.

(2) High measurement accuracy,fast response speed and good interchangeability.

(3) It has good sealing performance and can be directly buried in the soil for use without corrosion.

(4) The impact of soil quality is small and the application area is wide.

(5) Accurate measurement,reliable performance,ensuring normal operation and high data transmission efficiency.

Technical Parameters

Measuring parameters: soil temperature,soil volumetric moisture content,soil electrical conductivity (EC value),soil pH,soil nitrogen/phosphorus/potassium

Measurement unit: ℃; % (m3/m3); μS/cm; pH; mg/kg (mg/L)

Temperature range: -30~70℃ (0~50℃ or any other range can be customized)

Moisture range: 0~99% (you can choose 30%,50% and other ranges or customize any range)

Conductivity range: 0～2000μS/cm,0～10000μS/cm,0～20000μS/cm

pH range: 3～10pH

Nitrogen/phosphorus/potassium range: 0～1999mg/kg (mg/L)

Measurement accuracy: ±0.2℃; ±2% (m3/m3) within the range of 0~50% (m3/m3); ±2%; ±0.2pH; ±3% (mg/kg)

Resolution: 0.1℃; 0.1%; 1μS/cm; 0.01pH; 1mg/kg (mg/L)

Output signal: RS485 (standard Modbus-RTU protocol,device default address: 01)

Power supply voltage: 5～24V DC

Working range: -30℃～70℃

Stabilization time: 3 seconds after power on

Response time:<1 second