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Water level recorder

The WH311 intelligent water level display recorder, a color data acquisition and display recorder, uses large-scale integrated circuits with 48 inputs. It features RS232/485 communication interfaces, allowing for historical data export via USB drive; it provides sensor power distribution; and has display and recording functions, with selectable recording intervals of 1 to 4 minutes, real-time curve display, historical curve review, and bar graph display. Wanhe groundwater level automatic monitoring instruments have been applied in exploration sites of Xinjiang, Guizhou Geological Bureau, Wuhan Seismological Bureau, and Southwest Engineering, directly solving the problem of difficult groundwater level monitoring.

Classification:

Level Measurement

Keyword:

Overview
Overview
Specs
Certs
Applications

Application Overview
Groundwater level and temperature measurement is particularly important for the mining industry, groundwater exploration, and hot spring water temperature and level monitoring industries. China is rich in groundwater resources, and in many areas, groundwater is the main source of water for human production and life. This requires strengthening the monitoring of deep wells to guide the rational use of water by humans. Real-time monitoring of changes in the dynamic water level of deep wells is also beneficial for earthquake monitoring, providing big data support for geological and earthquake monitoring industries. The WH311 deep well water level measuring instrument is an ultra-low power consumption, IP68 high protection level, wired communication, and multi-sensor acquisition monitoring device. Suitable for harsh monitoring environments, it can achieve data acquisition, storage, alarm, and transmission for underground wells, fire safety, dam health, and water supply and drainage networks, and is especially suitable for underground well applications.

System Overview
The WH311 groundwater level measuring instrument relies on a deep well water level sensor probe and has the advantages of fast construction speed and real-time long-distance transmission. It integrates front-end detection and back-end real-time display to achieve groundwater level monitoring. It can monitor groundwater level and temperature data. The matching paperless recorder can record data in real time, generating various reports and curves to provide customers with data analysis and decision-making basis. This system is an important means of understanding the changes in groundwater, understanding the status of groundwater extraction, and guiding groundwater resource protection.

Application Challenges:
  1. Complex environmental conditions: Equipment often faces complex environments such as high temperature and high pressure, requiring instruments with excellent anti-interference ability and durability.
  2. Continuous operation: The system needs to operate continuously, so the monitoring system must have high reliability and stability to ensure long-term continuous monitoring.
  3. Data integration and real-time performance: Real-time integration and analysis of various monitoring data are required for rapid response and adjustment to ensure the safe and efficient operation of the system.
  4. High-precision and high-stability products are required.
  5. Maintenance difficulty: The equipment has high maintenance difficulty, and monitoring instruments need to be easy to maintain and repair to reduce downtime.

Solution Advantages:
  1. High anti-interference capability: Our instrument design has strong anti-electromagnetic interference capabilities, enabling stable operation around the equipment to ensure data accuracy and reliability.
  2. Durability and stability: Using high-quality materials and advanced manufacturing processes, the instrument can operate stably for a long time in high-temperature and high-pressure environments, reducing failure rates and maintenance costs.
  3. Real-time data processing: Equipped with a high-performance data processing unit, it can acquire, process, and display monitoring data in real time, supporting rapid decision-making and response.
  4. Supports intelligent system integration: Our solution integrates advanced sensors and intelligent control systems to achieve comprehensive monitoring and control of multiple parameters, optimizing the production and transmission process.
  5. IP68 protection level; polyurethane steel wire cable tensile force handles deep-water pressure environments.
  6. Convenient maintenance design: The instrument is designed for easy installation and maintenance, reducing maintenance time and costs and improving the overall operating efficiency of the system.
7Provides an intelligent solution for recording liquid level signals.

I. Specific Requirements

Unit: Guizhou Provincial Geological Bureau 111 Geological Team

Operating environment: Yudongxia geothermal water extraction test, deep well depth 1000 meters, water temperature within 90℃.
Monitoring requirements: Real-time display of deep well water level during the water extraction test to provide a basis for calculating geothermal resource exploitation; automated monitoring to improve office efficiency and reduce labor input;
      Ensure data accuracy, timeliness, and effectiveness;
      Ensure long-term operation 1000 meters underwater, at temperatures below 90℃.

II. Measurement and Analysis

Due to the special nature of deep well water level monitoring, non-contact methods such as radar level meters and ultrasonic level meters cannot effectively transmit signals, while magnetic level indicators and bubble-type meters have depth limitations.
The WH311 deep well probe now uses a laser static pressure principle (laser calibration of zero point and full scale), greatly simplifying the measurement process and reducing the cost of on-site data acquisition. The WH311 is easy to install and only needs to fix the level probe 3-5 meters above the deep well pump when the pump is lowered into the well. Suitable for deep well water level monitoring, solving the problem of difficult deep well water level measurement, with the following points meeting user needs:

1	Component Structure	Built-in monitoring components: Water level monitoring and water temperature monitoring are completed by one probe.
2	Accuracy	Measurement sensitivity and range: It can accurately measure the subtle fluctuations in groundwater level and temperature, and can also monitor a larger range of water level and temperature fluctuations.
3	Waterproof Performance	The WH311 probe is designed with a fully welded, one-piece structure, ensuring normal operation 1000 meters underwater. Each unit undergoes a 20MPa waterproof test (equivalent to 2000 meters underwater waterproofing);
4	Steel Wire Cable	Signal transmission uses a high-strength polyurethane steel wire cable (during deployment, pay attention to protecting the cable) to ensure real-time, high-precision, and stable output of temperature and water level measurement signals;
5	Protecting the Deep Well Pump	Real-time display of deep well water level and temperature, with high and low level alarm functions. It can be linked with the deep well pump to achieve the low-level stop pump function, preventing the deep well pump from burning out.
6	Power Supply Options	Two power supply requirements can be met: AC 220V power supply; DC 24V field portable battery;

*Requirements for water extraction test monitoring equipment and transmission system
Install one set of automatic groundwater monitoring equipment that can measure and record water level, water temperature, and other elements, and automatically record data; the automatic recorder has a stainless steel shell, simple structure, and small size; the monitoring frequency is optional (1S-4 minutes), and the data storage capacity is no less than 200,000 entries; data can be exported directly in table format.

III. Schematic Diagram of Solution Design and Installation Instructions

IV. Wiring Instructions

1. The liquid level temperature probe WH6 displays the real-time liquid level on the top and the real-time temperature on the bottom.

2. With recording function, it records data, and the random U disk can export the data to generate table data at any time.

V. Guizhou Geological Survey 111 Geological Team successfully signed the Wanhe Instrument solution

VI. On-site Construction Drawings

VII. Product Real Shots

VIII. Product Certifications (For detailed certification information, please visit: www.whsensors.com)

1. Inspection and Certification Group Inspection Report
2. CE FCC Certification
3. RoHS Certification
4. Third-party Calibration Certificate from TÜV SÜD (SGS)
5. Shenzhen Metrology Institute 0.25-level Inspection Certificate