Tide level gauge tidal monitoring manufacturer

Description :

　　Technical Specifications

　　HR8800S self-contained water level and temperature recorder/Tide gauge

　　Overview

　　Pressure type water level gaugeBy using pressure sensors to directly or indirectly sense the static water pressure of the water body, a water level measurement instrument can be realized. It generally includes pressure sensors and related pressure extraction, signal transmission, data processing (including display, storage, encoding, and recording).

　　We are constantly improving our products, and now we are proud to introduce our HR 8800 independent water level and temperature recorder/tide gauge. Its improved accuracy and increased internal self storage function are better than previous products, with better long-term stability and stronger functionality.

　　Product Version

　　The product version corresponding to this document is shown below.

　　Product Name Product Version

　　HR8800S Self contained Water Level Temperature Recorder/Tide Gauge v1.2

　　1.3 Product Features: Through this section, you can learn about the product specifications and basic parameters of the HR8800S self-contained water level and temperature recorder/tide gauge.

　　1.1 Product Overview

　　HR8800S Self contained Water Level Temperature Recorder/Tide Gauge is a self-contained battery level monitoring device that can record water depth (pressure) and temperature for a long time. It is made of all stainless steel or titanium alloy structure. The water level recorder includes water level and temperature sensors, built-in large capacity flash memory, and high-capacity long-life lithium batteries. Integrate all functions into a metal shell instrument with a diameter of 26 mm, suitable for surface water, groundwater, and marine environments. Water temperature measurement

　　Characteristics of HR8800S independent water level and temperature recorder/tide gauge:

　　Self contained: no cable pull-out, strong underwater sealing.

　　High stability shaping: High quality, high stability pressure-sensitive components

　　High precision: water level accuracy of 0.05% F.S, resolution of 1 mm; temperature accuracy of ± 0.5 ° C, resolution of 0.01 ° C

　　Multifunctional: Internal independent battery and storage, capable of regularly collecting and storing data

　　Low power consumption: intelligent power management design, collecting 3-4ma power supply

　　All functions: water level, water temperature, water pressure, etc., as well as real-time monitoring.

　　Pressure compensation: direct measurement of atmospheric pressure compensation (optional pressure)

　　Signal standard: RS485 interface Modbus RTU standard communication protocol

　　Protection level: All stainless steel sealed structure, IP68 protection.

　　Temperature compensation: Full range digital calibration, full temperature range temperature error compensation.

　　The electrical characteristics of sensors include overvoltage protection, surge voltage protection, and power polarity reverse protection to avoid electrical damage caused by operational errors.

　　1.2 Application Fields

　　The main application areas of HR8800S self-contained water level and water temperature/tide gauge are as follows:

　　Monitoring water temperature data of groundwater level

　　Ocean tide level monitoring

　　Monitoring of flood control water level in sponge cities

　　Real time monitoring of water level in reservoir dams

　　Lake and surface runoff water level monitoring

　　Unmanned hydrological monitoring station

　　On site monitoring of industrial control systems

　　1.3 Product specifications

　　Basic specifications

　　External dimensions of a pressure water level gauge with a diameter of 26mm and a length of 197mm

　　Basic performance parameters

　　Table 1 # 2 Explanation of Basic Performance Parameters

　　Parameter item description

　　Main performance indicators: sensitive components, high stability, long-term use, no drift

　　The measurement range is 0-10 MHz. 0~200m H/O

　　Water level 0.05; Lt; Garbage& GT; f.s (0~70 ° C), Level 1 degree

　　Water level resolution 1mm

　　Stable 0.05% F.S/year

　　Overload 2X F · S

　　Temperature accuracy ± 0.5 ℃

　　Temperature resolution 0.1 ℃

　　Time drift ≤± 1cm/10d (temperature change ≤± 3 ℃)

　　Temperature drift ± 1 centimeter (water temperature varies from 4 ℃ to 40 ℃)

　　Internal battery life of 10 years (recorded every 60 minutes)

　　Storage capacity and GT; 50000 records (water level+water temperature+voltage+time)

　　Real time clock ＜ ± 5 minutes/year

　　Temperature compensation range for electrical characteristics: 0-50 ℃

　　Working temperature -10 to 80 ℃

　　Power supply voltage DC5-30V (typical 24V)

　　Internal battery: 2.7~3.6 VDC

　　Reverse power protection and overvoltage protection

　　Output mode: RS 485 digital signal/MODBUS-RTU protocol with 128 transmitter nodes

　　Structural Features: Shell Material: 316L Stainless Steel

　　Measurement medium: Fluid medium

　　Cable material polyurethane or polyvinyl chloride

　　Cable specification: 7.6mm gas shielded double wire cable,

　　Environmental characteristic protection level

　　Weight approximately 300 grams (excluding cables)

　　Environmental vibration: subjected to the vibration test specified in GB/T9359

　　Endure the free fall test specified in GB/T9359

　　Electromagnetic environment complies with GB/T 17626.8 Level 3

　　The average time between failures shall not be less than 30000 hours.

　　working principle

　　An instrument that directly or indirectly senses the static water pressure of a body of water using a pressure sensor to measure water level. Including pressure sensors and related voltage carriers, signal transmission, data processing (including storage, encoding, and recording). The central processing unit collects real-time data from pressure sensors and temperature sensors based on the principle of static pressure and liquid level measurement, and applies complex algorithms to linear correction and temperature compensation of pressure sensor data. The system uses highly stable and high-precision sensors to fundamentally ensure the stability and accuracy of the product. The product adopts RS 485 digital output interface, and the data protocol is standard Modbus RTU protocol, supporting networking.

　　2 Installation and use

　　About this chapter

　　Chapter Content Introduction

　　Through the on-site installation of this equipment, you can learn about the on-site installation of HR8800S.

　　Product debugging. Through this chapter, you can learn about debugging the HR8800S product.

　　2.1 On site installation

　　Before installation and use, please carefully read the accompanying "Instructions for Use of HR 8800 Independent Water Level Recorder", which must comply with the requirements for manual installation and debugging.

　　Usage Notes

　　1) The bottom of the product should be as far away from the bottom of the water as possible and installed vertically to avoid blockage of the product probe inlet by sludge and debris at the bottom, ensuring measurement accuracy;

　　2) It is strictly prohibited to remove the water guide plug and touch the pressure diaphragm of the product with a hard object;

　　3) The product should be slowly placed in logging or other application areas, and it is strictly prohibited to throw it away at will to avoid damage to the pressure sensor caused by water hammer;

　　4) It is recommended that the range of the tested water body should be between 70% and 90% of the full product range to ensure sufficient resolution, accuracy, and necessary safety overload capacity.

　　5) The waterproof cable shielding layer of the product must be connected to reliable metals such as metal junction boxes and metal protective covers, and reliably connected to nearby land to ensure lightning protection capability;

　　6) The double steel wires of the air guiding cable must be fixed on the on-site fastening device (especially on a large scale) to ensure the stability of the product and the accuracy and reliability of the measurement results;

　　（7） During use, the following suggestions should be strictly followed for wiring to avoid short circuits and misconnections;

　　8) There is a waterproof molecular plug at the end air pipe of the waterproof air guide cable user connection, which should be properly protected and not lost, especially to avoid detachment and damage during transportation and installation. If damaged, it should be replaced in a timely manner. To prevent moisture and water from entering the probe through the cable and causing damage;

　　electrical connection

　　The output interface of HR8800S self-contained water level temperature recorder/tide gauge is RS485 digital output. This product is connected to the card reader through a four core waterproof connector, as shown in the following figure:

　　Figure 2-1 Product Structure Diagram

　　Tide gauge

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