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Portable Groundwater Level Automatic Monitoring Instrument

The portable automatic groundwater level monitoring instrument WH311 is widely used in deep well groundwater level, river measurement, water conservancy, field geological exploration, environmental monitoring and other industries. It has the advantages of battery power supply and unattended continuous operation. It can continuously record changes in water level and temperature, and by setting the sampling interval, it can record from several days to several years. Its measuring range can reach 100 meters, 300 meters, or even 1000 meters, mainly based on the high-pressure and high-sealing sensor chip built in WH311, the all-welded, one-piece structure design, waterproof and anti-clogging technology, and the signal transmission uses wear-resistant and high-tensile steel wire cable to ensure that the measurement signal can be output and displayed in real time with high precision and stability. The Wanhe portable water level measuring instrument has been used in Xinjiang, Guizhou Geological Bureau, Wuhan Earthquake Bureau, Southwest Engineering, Liaoning Environmental Monitoring and other exploration sites, directly solving the problem of difficult liquid level measurement in the field.

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 in deep wells is also beneficial for earthquake monitoring, providing big data support for geological and earthquake industry monitoring. The WH311 deep well water level meter is an ultra-low power consumption, IP68 high protection level, wired communication, and multi-sensor acquisition monitoring device. It is suitable for harsh monitoring environments and can realize data acquisition, storage, alarm, and transmission of groundwater wells, fire safety, dam health, water supply and drainage networks, etc., especially suitable for underground well applications.

System Overview
The WH311 groundwater level meter 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, realizing groundwater level monitoring, monitoring groundwater level and temperature data. With the supporting paperless recorder, it can record data in real time, generate various reports and curves, and provide data analysis and decision-making basis for customers. This system is an important means of mastering the changes in groundwater, understanding the status of groundwater extraction, and guiding the protection of groundwater resources.

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: It is necessary to integrate and analyze various monitoring data in real time to enable rapid response and adjustment, ensuring the safe and efficient operation of the system.
  4. High-precision and high-stability products are required.
  5. Maintenance difficulty: The maintenance of the equipment is difficult, and the monitoring instruments need to be easy to maintain and repair to reduce downtime.

Solution Advantages:
  1. High anti-interference ability: Our instrument design has strong anti-electromagnetic interference ability, and can work stably around the equipment, ensuring the accuracy and reliability of the data.
  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 collect, process, and display monitoring data in real time, supporting quick 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 to cope with deep-water pressure environment.
  6. Convenient maintenance design: The instrument is designed for easy installation and maintenance, reducing maintenance time and cost, 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 water extraction test to provide a basis for calculating geothermal resource extraction; automated monitoring to improve office efficiency and reduce labor input;
      Ensure data accuracy, timeliness, and effectiveness;
      Ensure long-term operation under 1000 meters of water, temperature below 90℃.

II. Measurement and Analysis

Due to the particularity of deep well water level monitoring, non-contact methods such as radar level meters and ultrasonic level meters cannot effectively transmit signals, and magnetic level gauges and bubble-type level meters have depth limitations.
Now, the WH311 deep well probe uses the laser hydrostatic principle (laser calibration of zero point and full scale), which greatly simplifies the measurement process and reduces the cost of on-site data acquisition. The WH311 is easy to install, and installation can be completed by simply fixing the level probe 3-5 meters above the deep well pump when the pump is lowered into the well. It is suitable for deep well water level monitoring and solves the problem of deep well water level measurement difficulties. It meets user needs in the following aspects:

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 adopts an all-welded integral structure design, ensuring normal operation under 1000 meters of water. Each unit will undergo a 20MPa waterproof test (equivalent to 2000 meters underwater waterproof);
4	Steel Wire Cable	Signal transmission uses high-strength polyurethane steel wire cable (during placement, be sure to pay attention to the protection of the cable) to ensure real-time, high-precision, and stable output of temperature and level measurement signals;
5	Protect the Deep Well Pump	Real-time display of deep well water level and temperature, and with high and low level alarm function, it can be linked with the deep well pump to achieve low-level pump stop function, preventing the deep well pump from burning out.
6	Power Supply Options	Two power supply requirements can be realized: AC 220V power supply; DC 24V outdoor portable battery;

*Water extraction test monitoring equipment and transmission system requirements
Install one set of automatic groundwater monitoring equipment that can measure and record water level, water temperature, and other elements, and can automatically record data; the automatic recorder housing is made of stainless steel, with a 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; the table data can be exported directly.

Three, Scheme Design Diagram and Installation Instructions

Four, 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, the data is recorded, and the random U disk can export the data to generate table data at any time.

Five, Guizhou Geological Bureau 111 Geological Team successfully signed a contract using Wanhe Instrument's solution

Six, On-site Construction Drawings

Seven, Product Pictures

Eight, Product Certification (For details of certification information, please visit: www.whsensors.com)

1. Inspection and Certification Group Inspection Report
2. CE FCC Certification
3. RoHS Certification
4. Intertek SGS Third-Party Calibration Certificate
5. Shenzhen Institute of Metrology 0.25-level Calibration Certificate