System Introduction/ ENVIRONMENT
The KNF-400D sewage well drainage end monitoring system consists of online digital sensors, wireless acquisition terminals, and Kenaf monitoring cloud platform monitoring. The product is modular and the equipment is designed with low power consumption. Convenient to use, easy to install in just 15 minutes, no need for road breaking construction, direct installation on the wellbore, no secondary pollution, low maintenance, good reliability, and can be laid on a large scale.
Sensors can be selected from cleaning devices to cope with harsh environments. Users can match different types of sensors according to their own needs, such as water level, water temperature, etc COD、 Ammonia nitrogen, turbidity, conductivity, dissolved oxygen pH、 Oil in water, etc.
System Characteristics/ System Features
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Multiple sensors are available for selection, and users can match them according to their needs
Online monitoring requires no reagents, no secondary pollution, and has low usage costs
Free docking protocol, such as HJ212 protocol, supports reporting to relevant departments
The software has complete functions and can browse and download real-time data through the cloud platform
Simple construction, easy installation, no need for complex debugging, equipped with cleaning brushes, and extremely low maintenance in the later stage
Multiple data transmission methods such as RS485, GPRS, 4G, NB, etc. are available and can be connected to the Kenaf Cloud platform
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Application scope/ Scope of application

System Schematic/ System Schematic
System certificate/ System certificate

System indicators/ Technical indicators
Parameter indicators |
measuring principle |
measuring range |
resolution |
accuracy |
power consumption |
data output |
Supply Voltage |
protection grade |
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PH |
Glass electrode method |
0~14ph |
0.01ph |
±0.05pH |
About 0.3W |
Rs485 |
12-24DVC |
IP68 |
conductivity |
Conductivity cell method |
0~5000µS/cm |
1µS/cm |
1% |
About 0.5W |
Rs485 |
12-24DVC |
IP68 |
COD |
spectrometry |
0~500mg/L |
0.01mg/L |
±5%F.S. |
About 1.5W |
Rs485 |
12-24DVC |
IP68 |
turbidity |
90Scattered light |
0~1000NTU |
1NTU |
±2%F.S. |
About 0.6W |
Rs485 |
12-24DVC |
IP68 |
Ammonia nitrogen |
Ion selection method |
0~100mg/L |
0.1mg/L |
±5%F.S. |
About 1.2W |
Rs485 |
12-24DVC |
IP68 |
Oil in water |
Ultraviolet fluorescence method |
0~100PPM |
0.01PPM |
±5% |
About 0.6W |
Rs485 |
12-24DVC |
IP68 |
Liquid level/flow rate |
Radar/Ultrasonic/Pressure Method |
0-10 meters |
0.05 meters |
2% |
About 0.5W |
Rs485 |
12-24DVC |
IP68 |
Data reporting |
The adjustable reporting time interval can be uploaded to the cloud via GPRS |
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data output |
RS485 (Modbus RTU protocol), 4G wireless output, NB |
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power supply |
Can be equipped with a built-in battery or powered externally (battery: lithium polymer battery 48000mAh, external power supply: DC12V) |
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Sensor cylinder |
Metal shell diameter: 14.5cm, height: 25.5cm |
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Maintenance Cycle |
About 6 months, optional automatic cleaning device greatly reduces maintenance workload |
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Cloud platform management |
Software copyright registration rights, using Alibaba Cloud servers, real-time collection, storage, and synchronized publishing of data to LED display terminals, with functions such as PC, mobile, WeChat binding, and warning. Independent account with mobile app |
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Software certification |
Having a software registration certificate, ISO9001、ISO14001、 Measurement and testing report, CMA testing report |
Device analysis/ Device Analysis

installation diagram/ Installation diagram

Water Quality Monitoring Cloud Platform Data Management Software/ IoT water quality monitoring cloud platform