Water quality monitor system for drink water

1. Water quality monitor system for drink water product introduction

1.1 Overview

Water quality monitor system for drink water can simultaneously monitor four conventional drinking water quality parameters, pH, turbidity, conductivity and temperature.The GSZ04 water supply water quality station is a comprehensive sensor collection, display, and analysis system based on Internet of Things technology. The water supply water quality monitoring microsystem is composed of a steady flow exhaust unit, an analysis and testing unit, a system control unit, and a remote communication unit. It has a complete power supply , lightning protection, network communication and other functions.

1.2 Product positioning

GSZ04 This equipment is used in water supply terminal pipe pressure environment of <0.3Mpa. It can be widely used in online monitoring of water quality in urban or village water plants, tap water delivery pipe networks, secondary tap water supply, user terminals, indoor swimming pools, large water purification equipment and direct drinking water. It is an important tool for water plant production process control, water conservancy and water management, sanitation, etc. An essential online analysis device for supervision and other fields.

1.3 Functions and features

GPRS networking 4G

Support extended RJ45 networking

Support extended sensor remote transmission

Support LED screen display 7.0-inch touch control screen

Support expanding Android screen display and storage

Extended Android screen supports 2G data storage and U disk data export

Supports one RS485 modbus-RTU protocol slave station

Supports multi-channel RS485 modbus-RTU sensor expansion

Supporting IoT data display, storage and analysis platform

The platform supports data forwarding of multiple protocols such as TCP short links, HTTP protocol, etc.

2. Composition of Water quality monitor system for drink water

2.1 Components

The water supply quality monitoring microsystem consists of a power supply unit, an analysis and testing unit, a display unit, a water pump unit, a remote communication unit and an integrated box main unit.

2.1.1 Power supply unit

Power adapter AC220 to DC12V/3A.

2.1.2 Analysis test unit

The analysis and testing unit is mainly composed of water temperature, conductivity, pH, and turbidity sensors, which are fixed on the flow cell through threads or tight-fitting fixtures. The main parameters of the sensors are as follows:

Technical parameters

Note: The sensor cannot be installed upside down or horizontally, and must be installed at an angle of at least 15 degrees.

The working environment of the above water quality sensors is 0-50℃, <0.3Mpa.

2.1.3 Display unit

The multi-parameter monitor is installed at the cabinet door to perform data collection, analysis, display, communication and data storage operations.

Android version: 4.4.2·CPU: Quad-core Cortex™-A7·RAM/ROM: 512M/4G·Screen: 7-inch capacitive touch screen·Power supply: 12V/1A·Supports U disk expansion and memory card expansion

2.1.4 Remote communication

RS485 interface MODBUS-RTU communication protocol Factory device address 6 decimal supports 03 function code to read data

Arrange in order

2.1.5 Equipment box main unit

3. Water quality monitor system for drink water product size

Water quality monitor system for drink water front view

Water quality monitor system for drink water side view

4. Water quality monitor system for drink water equipment installation

Equipment overall diagram

Schematic diagram of the internal measuring unit

5. Water quality monitor system for drink water maintenance

When using it for the first time or not using it again after being stored for a long time,

The pH-sensitive bulb and reference junction should be immersed in 3.3mol/L KCI solution for more than 2 hours.

Before use, it should be washed and dried with deionized water (or distilled water) to prevent impurities from being brought into the liquid being measured. 1/3 of the sensor should be inserted into the liquid being measured. The wiring terminal part should be kept clean and dry. The sensor should be cleaned when not in use and inserted into a protective sleeve with 3.3mol/L KCI solution, or the sensor should be inserted into a container with 3.3mol/L KCI solution. Check whether the wiring terminals are dry. If there are stains, please wipe them with absolute alcohol and dry them before continuing to use them. The sensor should avoid being immersed in deionized water, protein solution, strong acid and alkali solution, and acidic fluoride solution for a long time, and prevent contact with silicone grease. If the sensor has been used for a long time, its glass film may become translucent or have sediments attached. In this case, it can be washed with dilute hydrochloric acid and rinsed with water. When the sensor has been used for a long time and measurement errors occur, it can be calibrated and corrected by cooperating with the instrument. If the sensor cannot be calibrated and measured after maintenance and maintenance in the above manner, it means that the sensor has failed. Please replace the sensor.

Electrodes with regular conductivity need to be cleaned and calibrated periodically, and the maintenance cycle is determined by the customer based on his or her own working conditions. Conventional electrode cleaning method: use a soft brush to remove attachments (be careful to avoid scratching the electrode surface), then clean with distilled water, and then perform calibration operations.

The ORP sensitive bulb and reference junction should be immersed in 3.3mol/L KCI solution for more than 2 hours.

Before use, it should be washed and dried with deionized water (or distilled water) to prevent impurities from being brought into the liquid being measured. 1/3 of the sensor should be inserted into the liquid being measured. The wiring terminal part should be kept clean and dry. The sensor should be cleaned when not in use and inserted into a protective sleeve with 3.3mol/L KCI solution, or the sensor should be inserted into a container with 3.3mol/L KCI solution. Check whether the wiring terminals are dry. If there are stains, please wipe them with absolute alcohol and dry them before continuing to use them. The sensor should avoid being immersed in deionized water, protein solution, strong acid and alkali solution, and acidic fluoride solution for a long time, and prevent contact with silicone grease. If the platinum piece of the electrode is stained with grease, you can use absorbent cotton dipped in acetone or alcohol and gently scrub it clean. If the stain is insoluble inorganic matter, you can scrub it with 30-50% hydrochloric acid. You can also use clean water every day. Use high-grade toilet paper once. When the sensor has been used for a long time and measurement errors occur, it can be calibrated and corrected by cooperating with the instrument. If the sensor cannot be calibrated and measured after maintenance and maintenance in the above manner, it means that the sensor has failed. Please replace the sensor.

Dissolved oxygen sensor outer surface: Rinse the outer surface of the sensor with clean water. If there is still dirt remaining,

Please wipe it with a damp soft cloth. For some stubborn dirt, you can add some household detergent to the water to clean it. Fluorescent membrane head surface: If there is dirt on the fluorescent membrane head surface, please rinse it with clean water or wipe it gently with a soft cloth. When cleaning, pay attention to avoid scratching the measurement area and affecting the measurement accuracy. Avoid the inner surface of the fluorescent film being exposed to sunlight or strong light. Do not touch the fluorescent film with your hands or sharp objects. Avoid air bubbles adhering to the surface of the fluorescent film during use.

Turbidity sensor maintenance: If the sensor needs to be cleaned, use warm water and an appropriate amount of detergent to clean it.

Note: Avoid strong vibrations to damage the transparent glass in front of the ring, and do not scratch it with hard objects.