On-line water quality monitoring instrument is a kind of instrument equipment used to continuously and automatically monitor various water quality parameters in the water body, which can obtain water quality information in real time and accurately, and provide important data support for water resources management and environmental protection, etc.

1. Product Introduction

1. Overview

The QSZ04 water supply quality station is an integrated sensor collection, display, and analysis system based on the Internet of Things technology. The water supply quality monitoring microsystem consists of a stable flow exhaust unit, an analysis and test unit, a system control unit, and a remote communication unit, etc., and has perfect power supply, lightning protection, network communication and other functions.

2. Product positioning

QSZ04 Miniature Water Quality Automatic Monitoring Station

The automatic water quality monitoring station has the function of automatic monitoring. The integrated suction-type micro water quality automatic monitoring station mainly monitors the following items: PH, temperature, turbidity, conductivity, dissolved oxygen, COD, ammonia nitrogen, suspended matter, etc. It adopts highly integrated technology and realizes the automatic water quality monitoring function in one cabinet.

The device can be widely used for online monitoring of water quality in rivers, urban or village water supply plants, water supply pipelines, secondary water supply, user terminals, indoor swimming pools, large water purification equipment and direct drinking water, etc. It is an indispensable online analysis equipment in the fields of water plant production process control, water conservancy and water affairs management, and health supervision.

3. Functions and features

·GPRS connectivity 4G

·Support for extended RJ45 networking

·Support for extended sensor transmission

·Support LED screen display 7.0 inch touch control screen

·Support for extending Android screen display, storage

·Expand Android screen to support 2G data storage, USB flash drive data export

·Support one-way RS485 modbus-RTU protocol slave

·Support multi-channel RS485 modbus-RTU sensor expansion

·IoT data display, storage, and analysis platform;

·Platform supports TCP short connection, HTTP protocol and other multi-protocol data forwarding

Second, system composition

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

1. Power supply unit

Power AC220V.

2. Pump control unit

Smart self-priming pump maximum head: 25m discharge flow: 1.8m3/h

3. Analysis test unit

Analysis test unit, mainly consists of pH, dissolved oxygen, conductivity, turbidity, ORP, temperature sensor, fixed on the flow cell through threads or tight fixing parts, the main parameters of the sensor are as follows:

Note: The sensor must not be installed upside down or horizontally, it must be installed at an angle of at least 15 degrees above the horizontal, the working environment of the above water quality sensor is 0-50℃, <0.3Mpa

4. Display unit

Multi-parameter monitor, installed on the cabinet door, for data acquisition, analysis, display, communication, and data saving 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·Support USB expansion, support memory card expansion

5. Remote communication

RS485 interface MODBUS-RTU communication protocol factory equipment address 6 decimal support 03 function code read data

6. Equipment box main unit