Continuous automatic water quality monitoring system: supports the integration of monitoring data from different types of micro monitoring instruments and communication protocols (4G/5G, LoRa, NB IoT), as well as auxiliary sensor data such as rainfall and water level, to achieve integrated collection of water quality and hydrological data.
Continuous automatic water quality monitoring systemSupport the integration of monitoring data from different models of miniature monitoring instruments and communication protocols (4G/5G, LoRa, NB IoT), as well as auxiliary sensor data such as rainfall and water level, to achieve integrated collection of water quality and hydrological data.Continuous automatic water quality monitoring system
1、 Product Introduction
1. Overview
QSZ2 Water Supply Quality Station is a comprehensive sensor acquisition, display, and analysis system based on Internet of Things technology. It is a microsystem for water supply quality monitoring, consisting of a stable flow exhaust unit, analysis and testing unit, system control unit, and remote communication unit. It has complete functions such as power supply, lightning protection, and network communication.
2. Product positioning
QSZ2 Miniature Water Quality Automatic Monitoring Station
The water quality automatic monitoring station has an automatic monitoring function, and the main monitoring items of the integrated extraction micro water quality automatic monitoring station are: pH, temperature, turbidity, conductivity, dissolved oxygen, etc COD、 Ammonia nitrogen, suspended solids, etc. It adopts highly integrated technology to achieve automatic water quality monitoring function in one cabinet.
This device can be widely used for online monitoring of water quality in rivers, urban or rural water plants, water supply pipelines, secondary water supply, user terminals, indoor swimming pools, large-scale water purification equipment, and direct drinking water. It is an indispensable online analysis device in the fields of water plant production process control, water conservancy and water management, and health supervision.

3. Functions and Features
·GPRS networking 4G
·Support expanding RJ45 networking
·Support remote transmission of extended sensors
·Support LED screen display and 7.0-inch touch control screen
·Support expanding Android screen display and storage
·Expand Android screen support for 2G data storage and USB data export
·Support one RS485 Modbus RTU protocol slave station
·Support multi-channel RS485 modbus RTU sensor expansion
·Supporting IoT data display, storage, and analysis platform
·The platform supports multiple protocols such as TCP short links and HTTP protocol for data forwarding
2、 System composition
The water quality monitoring microsystem for water supply consists of a power supply unit, a water pump control unit, an analysis and testing unit, a display unit, a water pump unit, a remote communication unit, and an integrated box main unit.
1. Power supply unit
200W photovoltaic panel photovoltaic controller 12V/100ah battery, DC contactor DC12V
The power inverter converts DC12V to AC220.
2. Water pump control unit
Intelligent self-priming pump, high head: 25m, opening flow rate: 1.8m3/h
3. Analyze the testing unit
The analysis and testing unit mainly consists of pH, dissolved oxygen, conductivity, turbidity ORP、 The temperature sensor is composed of threads or tight fitting fasteners fixed to the circulation pool. The main parameters of the sensor are as follows:
| serial number |
sensor type |
measurement range |
Measuring principle |
measurement accuracy |
| 1 |
temperature |
0~50℃ |
High precision digital sensor |
±0.3℃ |
| 2 |
pH |
0~14(ph) |
Electrochemistry (salt bridge) |
± 0.1PH |
| 3 |
dissolved oxygen |
0~20mg/L |
Fluorescence lifetime method |
± 2% |
| 4 |
conductivity |
0~5000uS/cm,0~10000uS/cm |
Contact electrode method |
± 1.5% |
| 5 |
turbidity |
0~40NTU (optional) |
scattered light method |
± 1% |
| 6 |
ORP |
-1500mv~1500mv |
Electrochemistry (salt bridge) |
± 6mv |
Attention: The sensor cannot be installed upside down or horizontally, and should be installed at an angle of at least 15 degrees. The working environment of the above water quality sensor is 0-50 ℃,<0.3Mpa.
4. Display unit
Multi parameter monitoring device, installed at the cabinet door, for 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 USB expansion and memory card expansion
5. Remote communication
RS485 interface MODBUS-RTU communication protocol factory equipment address 6 decimal support 03 function code reading data
6. Equipment box main unit
| Installation method |
The cabinet is installed on the ground with a base. |
| Overall dimensions |
1684mm * 560mm * 510mm 50-100mm adjustable |
| Shell material |
216 stainless steel. |
| Protection level |
IP54 |
| power supply |
Solar photovoltaic power supply system 200W/12V/100aH water pump AC220V |
| water inlet |
4-point PE pipe |
| 出水口 |
6-point water purifier PE pipe |
| outfall |
4-point water purifier hose, (can also be manually drained regularly) |
| self-priming pump |
Motor power: 200W |
| Rated voltage: AC220V/50hz |
| Pump size 210 * 145 * 245/mm |
| Large suction range: 8m High lift: 25m |
| Open flow rate: 1.8m3/h |
| Supporting sensors (optional) |
PH: 0-14 Dissolved oxygen: 0-20mg/L Turbidity: 0-40NTU Conductivity: 0-5000us/cm Temperature: 0 ° C~50 ° C |