Hengrui pressure type water level gauge integrated telemetry groundwater level gauge HRMC.WY-1 type

Description :

① Real time display of water level, water temperature, and conductivity data from each monitoring station;

② Realize automatic alarm for water level exceeding limit and monitoring equipment failure

③ Implement functions such as querying and editing automatic monitoring data for water level, water temperature, and conductivity;

④ Complete the statistical analysis function of automatic monitoring data, including statistical reports, trend curves, etc

⑤ Complete the editing function of basic information such as station types, equipment types, communication methods, monitoring indicators, etc. for each automatic monitoring station;

⑥ Security management is provided by the operating system. Set passwords on the human-machine interface, allowing only authorized operators to perform operations, and record the login status of operators;

⑦ The real-time data of the system can be automatically written into the water level monitoring database, and the real-time telemetry data can be browsed by relevant departments through the computer wide area network to achieve data sharing;

⑧ Support software system maintenance and hierarchical management.

⑨ Support mobile app display, data query, measurement point management, statistical analysis, etc.

⑩ The system has a good data interface, which facilitates data integration

4.3 System composition

The system consists of two parts: a cloud platform/mobile app, and an integrated telemetry pressure water level gauge (three parameters).

Cloud platform/mobile app: The core of the entire monitoring system, monitoring real-time data from each monitoring point and generating various reports and curves based on this data.

Integrated telemetry groundwater level gauge: collects data on water level, water temperature, and conductivity in the medium and wirelessly transmits it to cloud platforms/mobile apps.

4.4 Integrated telemetry groundwater level gauge pressure type water level gauge system topology diagram

5、 Construction of on-site monitoring points

Monitoring wells are usually built outdoors. If there is AC power on site, it is recommended to use mains power supply. If there is no AC power and the collection rate is relatively fast, solar power supply is recommended. For conventional collection rates, battery power supply is recommended. The integrated telemetry pressure type water level gauge (three parameters) can be collected and reported at regular intervals, and the collection and reporting intervals can be modified. Recommend reporting once a day and collecting 6 times a day.

After the water level gauge is put into operation underground, the telemetry terminal is directly placed in the wellhead protection device or hung in the well room.

5.1 Configuration of a single monitoring station

5.2 Equipment Features

U high stability type: high-quality and high stability sensing element

Processing technology: temperature compensation for multiple points across the entire range of the machine

Multiple measurement parameters: integrated measurement of water level, water temperature, and conductivity

Communication network: 4G full network, expandable to other wireless methods

High precision: water level accuracy of 0.05% F.S, temperature accuracy of ± 0.2 ° C, conductivity of 1.5% F.S

Multiple power supply methods: batteries, solar energy, and mains electricity. (This project is powered by lithium batteries)

High protection level: IP68 protection for the entire machine

Information collection: Regularly collect water level/temperature/water quality data, battery voltage, and sensor status.

Data storage: Automatic storage of monitoring data, achieving dual backup of on-site equipment and monitoring center.

Multi center communication: Data can be reported to multiple centers in counties, cities, and provinces simultaneously.

Intelligent alarm: When the data exceeds the limit or the battery voltage is too low, an automatic alarm will be triggered and data will be added.

Remote maintenance: remotely modify device parameters and report frequency; Remote upgrade device program.

5.3 Technical parameters:

5.3.1 Battery powered telemetry terminal:

1) The communication module is an industrial grade product;

2) Supports 4G telecommunications, China Unicom, and mobile full network, dual band GSM/GPRS;

3) The lower computer command controls the up and down line as needed;

4) Support virtual data private networks, public networks, and cloud systems;

5) Capable of collecting analog and digital instrument data related to rainfall, water level, flow rate, etc;

6) It has the function of collecting and sending cumulative and instantaneous traffic;

7) Equipped with real-time clock and system clock synchronization function;

8) Support multi-channel switching functions such as 4G/Beidou satellite/GPRS/SMS communication, ultra short wave communication, extended serial communication, etc., support primary and backup channel switching, and multi center reporting;

9) Interface: 2-channel switch input, 2-channel switch output, 1-channel RS232 or 1-channel RSA85, 2-channel 4-20mA, 1-channel controllable 12V output interface;

10) Equipped with a watchdog to ensure automatic reset in case of system crash;

11) Data transmission: It has the function of multiple transmissions in one station and comes with a built-in verification function to ensure complete and accurate data transmission;

12) Data storage: The terminal has a built-in large capacity memory with a storage capacity of ≥ IMB;

13) Having the function of resending data: When both the primary and backup channels fail to send successfully, the data message will be temporarily stored locally. After communication is restored to normal, all the data that should be sent must be resent;

14) It can automatically wake up at regular intervals to complete timed reporting, respond to instructions such as extracting solid-state storage data from the central station, and modify parameters;

15) Equipped with manual counting function;

16) Remote parameter setting: Parameters that can be remotely set include timed self reporting time period value, local station address, center address, center mobile phone number, current traffic volume, measurement interval, current time, etc;

17) Environmental monitoring: low battery voltage alarm, etc.

18) Working mode: Self reporting and response;

19) Working voltage: 6-7.2VDC;

20) Static duty current in self reporting mode: ≤ 0.05mA (6VDC);

21) Working current: ≤ 30mA (6VDC);

22) Environmental temperature: -10 ℃ to 55 ℃;

23) Relative humidity: 95% RH (40 ℃);

24) Equipped with power, connection status, and operation indicator lights;

25) Power supply range:+5.4V to+12VDC;

5.4 8033 type three parameter pressure water level gauge

The three parameter pressure type water level gauge is used to measure the water level, water temperature, and conductivity of the well, and the measured data is transmitted to the telemetry terminal through a signal line.

The three parameter water level gauge is equipped with pressure, temperature, and conductivity sensitive components. By utilizing the pressure resistance effect, the hydraulic pressure it receives is converted into an electrical signal, which is then converted into an RS485 standard remote transmission signal by a voltage current converter.

Calculation formula: P=PI+Q * H

Among them, P: measured liquid pressure; PI: atmospheric pressure; H: Liquid depth; Q: Specific gravity of the tested liquid

Due to the variation of atmospheric pressure with different geographical heights, in order to eliminate measurement errors caused by atmospheric pressure changes, the sensor uses an air guide cable to guide the atmospheric pressure PI to the other side of the sensitive element. The air guide hole of the air guide cable is connected to the atmosphere. Thus, the calculation formula becomes: P=Q * H

This eliminates measurement errors caused by changes in atmospheric pressure, and the measurement accuracy can reach 0.05%

For the liquid level measurement of water tanks with large fluctuations, anti wave tubes, fixed brackets, and other methods can be used to fix the transmitter according to the specific situation.

Technical parameters of 8033 type three parameter water level gauge:

AfterSalesService :

• Pressure type water level gauge