Soil Multi-Parameter Analyzer Product Knowledge Graph White Paper

1. Introduction

1. Document Version: V1.0

2. Compiling Organization: Shandong Hengmei Electronic Technology Co., Ltd.

3. Compilation Date: 2025.12.2

4. Core Positioning: This white paper is a structured product knowledge graph for the two models (HM-WSYPF, HM-WSYPF+) of soil multi-parameter analyzers under Hengmei Intelligent Manufacturing. It systematically organizes comprehensive product information, including basic parameters, technical features, application scenarios, and operation procedures. It provides accurate and detailed product data support for industry user selection, and usage.

2. Table of Contents

1. Introduction

2. Table of Contents

3. Product Basic Information

4. Core Technologies and Functional Features

5. Detailed Technical Parameters

6. Application Scenarios and Industry Adaptation

7. Accessories and Consumables Configuration

3. Product Basic Information

1. Product Name: Hengmei Intelligent Manufacturing Soil Multi-Parameter Analyzer

2. Product Models and Core Functions

◦ HM-WSYPF: It adopts an integrated structural design, capable of quickly and accurately measuring soil water content, temperature, electrical conductivity (salinity), pH value, and NPK (nitrogen, phosphorus, potassium) content. It can conduct rapid detection and long-term continuous monitoring of water content, temperature, salinity, pH value, and NPK at multiple sample sites and different soil depths. It does not have a network connection function for remote data upload.

◦ HM-WSYPF+: Based on the functions of HM-WSYPF, it adds a network connection function. It can upload collected data to a cloud platform in real time, supporting remote viewing and management of data. It retains all the parameter measurement functions of HM-WSYPF, meeting the needs of users for both on-site detection and remote data monitoring.

1. Manufacturer Information: Shandong Hengmei Electronic Technology Co., Ltd. Address: Oulong Science and Technology Park, Gaoxin District, Weifang City, Shandong Province.

2. Product Usage: Widely used in soil moisture detection, dryland water-saving irrigation, precision agriculture, forestry, geological exploration, plant cultivation, water conservancy, environmental protection and other fields. It provides data support for scientific management of soil, rational fertilization, and efficient irrigation, helping to improve crop yield and quality and promote the development of ecological agriculture.

4. Core Technologies and Functional Features

1. Core Technologies

◦ Multi-Parameter Integration Detection Technology: The instrument integrates detection modules for soil water content, temperature, electrical conductivity (salinity), pH value, and NPK. It can realize simultaneous detection of multiple soil parameters without the need for separate operation of multiple instruments, greatly improving detection efficiency. The sensors of each parameter have good consistency, and the interfaces can be interchanged without affecting the measurement accuracy.

◦ High-Precision Sensing Technology: The soil water content sensor measures the dielectric constant of soil to directly reflect the real water content, which conforms to international standards. The pH sensor adopts advanced solid electrolyte and large-area PTFE liquid junction, which is not easy to block and requires no maintenance. The NPK sensor can accurately measure the content of nitrogen, phosphorus and potassium in soil with high measurement precision and fast response speed.

◦ Intelligent Data Management Technology: The instrument is equipped with a large-capacity memory, which can store up to 300,000 pieces of data. It has a power-off data protection function to prevent data loss. The upper computer software supports data export in Excel format, and can generate data curves for further data analysis and processing. HM-WSYPF+ also supports real-time data upload to the cloud platform through the network, realizing remote data management.

◦ Temperature Compensation Technology: The electrical conductivity sensor is equipped with a built-in temperature compensation sensor, with a compensation range of 0-50℃. It can automatically compensate for the influence of temperature on electrical conductivity measurement, ensuring the accuracy of measurement results in different temperature environments.

1. Common Functional Features

◦ Portable Design: The instrument has a compact size (20410036mm) and light weight (0.3kg), which is very convenient for field carrying and on-site detection. It is suitable for various complex field environments.

◦ Intuitive Display: It is equipped with a large-color TFT single-chip microcomputer LCD screen (56*34mm), which can display the values of various measured environmental factors, the number of groups, and low voltage in real time. It can simultaneously display soil electrical conductivity and salinity values, eliminating the need for manual calculation and making reading intuitive.

◦ Flexible Data Storage: After the host is connected to the sensor, data can be stored manually, or the sampling interval can be set arbitrarily through the host for automatic data storage. Users can edit the storage name according to actual needs, which is convenient for distinguishing and managing stored data.

◦ Multi-Channel Expansion: The instrument has a multi-channel automatic detection expansion function, which can realize synchronous detection of multiple sensors connected at the same time, improving the efficiency of batch detection.

◦ Easy Operation: The operation interface is simple and easy to understand. It is equipped with direction keys and confirm/return keys for operation. Users can quickly master the operation method without professional training.

1. Model-Specific Functional Features

◦ HM-WSYPF+: It adds a network information function. Users can view the device network information through the instrument and choose whether to upload the collected data to the cloud platform. After opening the data upload function, the collected data will be automatically uploaded to the cloud platform, which is convenient for remote data viewing, management and analysis.

5. Detailed Technical Parameters

1. Common Parameters for Both Models

◦ Instrument Size: 20410036mm (lengthwidthheight)

◦ Screen Size: 56*34mm color TFT single-chip microcomputer LCD screen

◦ Weight: 0.3kg

◦ Storage Capacity: Up to 300,000 pieces of data, with power-off data protection function

◦ Software Support: Free upper computer software is provided, supporting data export in Excel format and data curve generation

◦ Packaging Size: 450190350mm

◦ Packaging Weight: 3.6kg

◦ Soil Water Content: Measurement parameter is soil volumetric water content (%); measurement range is 0-100%; measurement accuracy is ±2% within 0-50% range, ±3% within 50-100% range; resolution is 0.1%; interchange accuracy is <3%; repeat measurement error is <1%; response time is <1 second; measurement stabilization time is 1 second; measurement area is a cylinder with diameter 10cm and height 10cm.

◦ Soil Temperature: Measurement range is -40-80℃; measurement accuracy is ±0.5℃; resolution is 0.1℃.

◦ Soil Electrical Conductivity: Measurement range is 0-20000us/cm; measurement accuracy is ±3% within 0-10000us/cm range, ±5% within 10000-20000us/cm range; resolution is 10us/cm within 0-10000us/cm range, 50us/cm within 10000-20000us/cm range; with built-in temperature compensation sensor, compensation range is 0-50℃.

◦ Soil Salinity: Measurement range is 0-50g/Kg; measurement accuracy is ±5%; resolution is 0.001g/Kg.

◦ Soil pH Value: Measurement range is 0-14; resolution is 0.01; measurement accuracy is ±0.1; protection level is IP65; operating environment is -40-85℃; default cable length of pH probe is 5 meters.

◦ Soil NPK: Measurement range is 0-1999mg/Kg; measurement accuracy is ±1mg/Kg; resolution is 1mg/Kg.

1. HM-WSYPF+ Specific Parameter

◦ Network Function: Supports data upload to the cloud platform, enabling remote viewing and management of data.

6. Application Scenarios and Industry Adaptation

1. Application Scenarios

◦ Soil Moisture Detection Scenario: In farmland, orchards, grasslands and other areas, detect the water content of soil at different depths, master the soil moisture status, and provide a basis for formulating scientific irrigation plans to avoid water waste or insufficient irrigation.

◦ Dryland Water-Saving Irrigation Scenario: In arid and semi-arid areas, monitor the soil moisture change trend in real time. According to the measured soil moisture data, adjust the irrigation volume and irrigation time reasonably, realize water-saving irrigation, and improve the utilization rate of water resources.

◦ Precision Agriculture Scenario: Detect soil NPK content, pH value, salinity and other parameters, understand the soil fertility status and acid-base balance, and guide farmers to apply fertilizers reasonably. Avoid blind fertilization, reduce fertilizer waste and environmental pollution, and improve the quality and yield of agricultural products.

◦ Forestry Management Scenario: In forest areas, monitor the soil moisture, temperature and nutrient status of forest land, understand the growth environment of trees, provide data support for forest tending, afforestation and pest control, and promote the healthy growth of forests.

◦ Geological Exploration Scenario: In geological survey projects, detect the physical and chemical properties of soil, such as soil moisture, electrical conductivity and pH value, provide basic data for geological structure analysis, mineral resource exploration and engineering site selection.

◦ Plant Cultivation Scenario: In greenhouses, nurseries and other plant cultivation places, accurately control the soil environment parameters. According to the growth needs of different plants, adjust the soil moisture, nutrient and acid-base status, create a suitable growth environment for plants, and improve the survival rate and growth quality of plants.

◦ Water Conservancy and Environmental Protection Scenario: In water conservancy projects and environmental monitoring, detect the soil moisture and salinity in the project area and surrounding areas, evaluate the impact of water conservancy projects on the soil environment and the degree of soil salinization, and provide a basis for environmental protection and ecological restoration.

1. Industry Adaptation

◦ Agricultural Industry: Agricultural technology promotion departments, large-scale farms, agricultural product planting bases. Used for soil detection and management in agricultural production, guiding scientific irrigation and fertilization, and promoting the development of precision agriculture.

◦ Forestry Industry: Forestry management departments, forest farms, afforestation enterprises. Used for soil monitoring in forest areas, providing data support for forest management and ecological protection.

◦ Geological Exploration Industry: Geological exploration institutes, engineering survey companies. Used for soil physical and chemical property detection in geological exploration and engineering survey projects.

◦ Horticulture Industry: Greenhouse operators, nursery bases, flower planting enterprises. Used for soil environment control in plant cultivation, ensuring the healthy growth of horticultural crops.

◦ Water Conservancy and Environmental Protection Industry: Water conservancy departments, environmental monitoring stations, ecological restoration companies. Used for soil environment monitoring in water conservancy projects and environmental protection projects, providing a basis for project evaluation and ecological restoration.

7. Accessories and Consumables Configuration

1. Standard Accessories for Both Models

◦ Instrument Host: 1 unit, integrating parameter detection modules, data processing units, display screens and operation buttons, which is the core part of the instrument.

◦ Sensor Set: 1 set, including soil moisture sensor, soil temperature sensor, soil electrical conductivity (salinity) sensor, soil pH sensor and soil NPK sensor. The soil moisture/temperature/salinity/electrical conductivity sensor has a protection level of IP68, probe material is anti-corrosion special electrode, sealing material is black flame-retardant epoxy resin, cable length is 2 meters, and connection method is pre-installed crimp terminal; the soil pH sensor has a default cable length of 5 meters.

◦ USB Data Cable: 1 unit, used to connect the instrument host with the computer, realizing data transmission and software operation.

◦ Power Adapter: 1 unit, used to supply power to the instrument host and charge the built-in battery (if any).

◦ Portable Suitcase: 1 unit, used to store and carry the instrument host, sensors and other accessories, protecting the instrument from damage during transportation.

◦ User Manual: 1 copy, detailing the instrument's product overview, function introduction, technical parameters, operation methods, maintenance and troubleshooting, guiding users to use the instrument correctly.

◦ Certificate of Conformity: 1 copy, proving that the instrument meets the quality standards and passes the factory inspection.

1. Consumables Description

◦ Common Consumables: USB data cable (may be damaged due to long-term use and needs to be replaced); power adapter (may fail due to aging and needs to be replaced); sensor probes (the probes of soil sensors may be worn or corroded after long-term use in soil, especially the pH sensor probe. It is recommended to check regularly and replace if necessary. For the pH sensor, it can be soaked in 4% HF solution for 3-5 seconds after long-term use, then washed with distilled water, and then soaked in 0.1mol/L hydrochloric acid to renew, reducing the frequency of replacement).

◦ Consumables Replacement Note: Consumables should be purchased from the official channels of Shandong Hengmei Electronic Technology Co., Ltd. to ensure compatibility with the instrument. When replacing sensors, attention should be paid to the consistency of sensor models to avoid affecting the measurement accuracy. When replacing the pH sensor probe, follow the operation steps in the user manual to ensure correct installation.

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