Self-contained tide gauge

Description :

　　Technical Specifications

　　HR8800S Self contained Tide Gauge

　　V1.2

　　Shaanxi Hengrui Measurement and Control System Co., Ltd. provides customers with comprehensive technical support, and users can directly contact the company.

　　Shaanxi Hengrui Measurement and Control System Co., Ltd.

　　Address: Hengrui Measurement and Control, No. 30 Jufu Road, Jiangtan Industrial Park, Weibin District, Baoji City, Shaanxi Province

　　Copyright 2019 Shaanxi Hengrui Measurement and Control System Co., Ltd. copyright.

　　All contents contained in this self-contained water level gauge manual are protected by copyright law. Without written authorization from Shaanxi Hengrui Measurement and Control System Co., Ltd., no organization or individual may copy or reproduce the entire specification and certain contents in any form or manner.

　　Attention

　　Due to product version upgrades or other reasons, the content of this document may be updated from time to time. Unless otherwise agreed, this document is for reference only, and all statements, information, and recommendations in this document do not constitute any express or implied warranties.

　　Preface

　　Overview of Self contained Tide Gauge

　　The pressure type water level gauge uses a pressure sensor to directly or indirectly sense the static water pressure of the water body, achieving a water level measurement instrument. 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 Tide Gauge v1.2

　　Reference standards

　　GB/T191 Packaging and Storage Icons

　　GB/T 2423.1-2008 Environmental testing for electrical and electronic products - Part 2: Test methods - Test A: Low temperature

　　GB/T 2423.2 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test B: High Temperature

　　GB/T 2423.32006 Environmental testing for electrical and electronic products Part 2 Test methods Test cab: Constant humidity and heat test

　　Environmental testing for electrical and electronic products - Part 2: Test methods - Test EA and guidelines: Effects

　　GB/T 2423.8 1995 Environmental testing for electrical and electronic products - Part 2: Test methods - Test ED: Free fall

　　GB 4208-2008 Degrees of Protection Provided by Enclosures (IP Code)

　　GB 6388 Shipping Package Receipt and Delivery Mark

　　GB/T9359/2001 Basic environmental test conditions and methods for hydrological instruments

　　GB/T9969/2008 General Rules for Industrial Product Description

　　GB/T 11828.2-2005 type water level measuring instrument Part 2: Pressure type water level gauge

　　Electromagnetic Compatibility Testing and Measurement Techniques GB/T 17626.2-2006 Electrostatic Discharge Immunity Test

　　GB/T 17626.8/2006 Electromagnetic Compatibility Testing Techniques - Power Frequency Magnetic Field Immunity Test

　　GB/T 18185/2014 Technical Requirements for Reliability of Hydrological Instruments

　　General rules for hydrological instruments Part 3: Basic Performance and Its Representation

　　GB/T 19677 Terminology and Symbols for Hydrological Instruments (GB/T 19677/19677, ISO772/1988, NEQ)

　　Basic Terminology and Symbols for Hydrology GB/T 50095-2014

　　GB/T 50138-2010 Water Level Observation Standard

　　Naming Method for SL108 Hydrological Instruments and Hydrological Automation System Models

　　Product Introduction of Self contained Water Level Gauge

　　About this chapter

　　Chapter Content Introduction

　　1.1 Through the product overview in this section, you can learn about the HR8800S self-contained tide gauge and its main features.

　　1.2 Application Fields: Through this section, you can learn about the market positioning and application areas of the HR8800S self-contained water level and temperature recorder/tidal measuring instrument product.

　　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 Self contained 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 self-contained tide gauges 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 26 mm and a length of 197 mm

　　Basic Performance Parameters of Self contained Tide Gauge

　　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 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

　　2.2 Product Debugging

　　Product Inspection

　　Before formal debugging, the "HR8800S water level gauge testing software" should be used for testing. During the testing period, only one product is allowed to be connected. The specific testing method is as follows:

　　1) Wiring according to the above wiring and electrical connection methods;

　　2) To run the HR8800S water level gauge testing software, first set the serial port parameters, with a default value of 9600 bps, no calibration bit, and one stop bit (the water level gauge testing software manual provides detailed instructions on how to use the testing software);

　　3) Open the "Tools" interface of the software, click "Search Address" ->"Start Test" in sequence, and pay attention to the prompt information in the "Prompt Message" box, as shown in Figure 2.

　　4) If the water level, temperature, and water pressure can be displayed normally, it indicates that the product function is normal and installation and debugging can continue.

　　Figure 2-2 Software "Tools" Interface

　　Product debugging

　　After the product testing is completed and confirmed to be functioning properly, the product can be debugged and set up. As the data transmission protocol used in this product is the standard MODBUS-RTU protocol, users can use the HR8800S independent water level and water temperature recorder testing software MODBUS debugging assistant or their own upper computer software to complete the relevant debugging and setting work of this product.

　　According to the product protocol, users can read and write product registers, and complete access to function registers, data registers, and status registers. The main operations are as follows:

　　1) Basic parameter settings, such as serial port settings, timed sampling time settings, etc.

　　2) Calibration parameter settings: zero point setting, density setting, proportional coefficient setting, etc.

　　3) Test data reading: reading of test parameters such as water level, water pressure, and water temperature

　　4) Status register reading: Read the status register to understand the operating status of the product

　　For detailed instructions on the Modbus RTU protocol, register read/write command format, and register definition of the product, please refer to the Modbus Protocol 1.0 of Hengrui Pressure Water Level Gauge.

　　3 Fault analysis and troubleshooting

　　Troubleshooting methods for fault phenomena

　　The electrical interface connection of the equipment without communication inspection is correct

　　Check if the baud rate setting is correct

　　Check if the device address is set correctly.

　　The above methods still cannot solve the problem, please contact the manufacturer.

　　Place the data deviation in the liquid for a short period of time (recommended>10 minutes) to affect the measurement accuracy.

　　Check if the inlet hole of the equipment is blocked

　　Re calibrate the zero point of the product

　　The above methods still cannot solve the problem, please contact the manufacturer.

　　4 Maintenance and upkeep

　　1. The range of the water level gauge is optional.

　　2. After debugging, it can be slowly used in water without the need for maintenance during use.

　　5 Transportation and Storage

　　1. Avoid serious collisions during the transportation of this product and take waterproof and moisture-proof measures;

　　2. The storage location of the product should avoid corrosive gas corrosion.

　　3. The product should be stored at a temperature of 0-50 ° C and 50 ° C; Lt; Garbage& GT;-95＆amp; Lt; Garbage& GT; under humidity conditions;

　　4. Severe vibration and impact are strictly prohibited.

　　6. Unpacking and Inspection

　　1. After opening the box, check whether the documents and attachments are complete according to the contents of the packing list (see the table below).

　　2. Observe whether the water level gauge is damaged due to transportation or other reasons for proper handling.

　　Number, Name, Quantity

　　1 Packing List 1

　　2 Product manual 1

　　3 Product Technical Manual 1

　　4 Product Qualification Certificate 1

　　5 HR8800S Self contained Water Level and Temperature Recorder/Tide Gauge 1

　　6 Communication Adapter 1

　　7 Precautions

　　Precautions for use

　　Do not dismantle the water conduit and use it. Disassembly and reinstallation are prohibited.

　　It is strictly prohibited to touch the diaphragm of the pressure sensor with hard objects.

　　It is strictly prohibited to put the product into the test liquid and use it.

　　Please follow the recommended wiring sequence when wiring

　　Please do not use this product in environments beyond the designated range

　　Safety precautions

　　Light and light, without violent destruction

　　It is strictly prohibited to come into contact with corrosive substances such as strong acids and alkalis.

　　Strictly prohibit the use at ultra-high temperatures

　　8. After sales service and technical support

　　after-sales service

　　Within one year from the date of shipment, our company will replace or maintain products with quality defects caused by material and process issues free of charge; For product malfunctions caused by non quality reasons during use, our company can provide paid repairs, with only the user bearing the material, packaging, and shipping costs.

　　Technical Support

　　If you encounter difficult problems during installation or use, you can contact Shaanxi Hengrui Measurement and Control System Co., Ltd. or the sales personnel in the area. The technical personnel will provide telephone or on-site guidance.

　　9 Ordering Instructions

　　1. Product name, model and specifications;

　　2. The main technical parameters of the product and the scope of environmental use. also. ..

　　3. If the user has special requirements such as pressure, high temperature, anti-corrosion, etc., they should be specified when ordering.

　　Note: The HR8800S self-contained water level gauge is used for pressure measurement and can be selected from the company's large pressure gauge products. Self-contained tide gauge

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• Self-contained tide gauge