ADU1310 Turbidity sensor for data center

The low-range turbidity electrode is an advanced sensor specifically designed for the precise measurement of low turbidity and high-transparency water. It operates on the principle of optical scattering (typically 90° scattered light method), combined with digital signal processing technology, to achieve high-accuracy and high-stability detection of fine suspended particles in water. It is particularly suitable for applications with stringent requirements for water purity.

Characteristics

Measuring Range：（0~100）NTU

Accuracy：2% or 0.05NTU

Resolution：0.001NTU

Repeatability：≤1%

Reading Stability：≤1.5%

Parameters

Measured Variables	Turbidity
Measuring Methods	Laser 90° Scattering Method (Laser Light Source)
Light Source	860nm Laser
Measuring Range	（0~100）NTU
Accuracy	2% or 0.05NTU (whichever is greater) (based on Formazin primary turbidity standard solution at 25°C)
Resolution	0.001NTU
Repeatability	≤1%
Reading Stability	≤1.5%
Zero Drift	≤1.5%
Response Time	T90≤120s
Transmitter Output	（4~20）mA, user-configurable measurement range
Communication Output	RS485 Interface，Modbus-RTU Communication Protocol
Power Supply	（9~28）VDC
Power Consumption	≤5W
Sample Flow Rate	（100~1000）mL/min（recommended 500mL/min）
Pressure Resistance	≤0.6MPa or water depth≤ 60m
Operating Temperature	（-5~45）℃（Non-freezing environment）
Calibration Method	Factory pre-calibrated with default calibration curve; supports single-point calibration, two-point Formazin calibration, and 2–6 point customized calibration
Housing Material	ABS and POM plastics
Protection Rating	IP68

ADU1310 Turbidity sensor for data center

Principle

The turbidity measurement method is based on the laser 90° scattering technique. A laser beam is directed vertically from the air into the water. Suspended particles in the water scatter the laser, and a sensor positioned at a 90° angle to the incident light detects the scattered intensity. The signal is then converted into turbidity values according to calibration curves.