Turbidity Meter

I. Product Overview

Turbidity is a key water quality indicator of the suspended particulate content of water and directly affects its sensory properties and safety. The instrument uses single-wavelength 860 nm scattered-light measurement to determine turbidity accurately, and supports a user-defined coefficient that converts the turbidity value into a suspended solids concentration, giving two parameters from one instrument.

II. Measuring Principle

The scattered-light method uses a stable light beam passing through a sample cell containing the sample, with the sensor positioned perpendicular to the emitted beam to measure the intensity of scattered light. Within a certain concentration range, the intensity of the scattered light is proportional to the turbidity of the sample. When the source water, water quality and operating conditions are relatively stable, the material and particle size distribution of the suspended matter remain essentially constant, so the mass concentration of suspended solids and the optical scattering signal have a stable empirical linear relationship. Based on an empirical coefficient between turbidity and suspended solids concentration (for example 1 NTU ≈ 1 mg/L as the initial setting), the instrument converts the turbidity result into a suspended solids concentration in real time.

III. Applications

Environmental monitoring of rivers, lakes and groundwater; routine inspection of waterworks treatment trains and distribution network water; turbidity monitoring of influent, effluent and process stages in wastewater treatment plants; aquaculture water management; and monitoring of process and cleaning water in the food and beverage and pharmaceutical industries.

IV. Key Features

1. Android operating system with an elegant interface and user-friendly operation.

2. 4.3-inch high-definition touch screen combined with a visual graphical interface that greatly improves operating efficiency.

3. High-reliability imported LED light source: no warm-up required and stable long-term performance.

4. 10 mm × 10 mm large-area photocell for high sensitivity and a low detection limit.

5. 16 GB internal memory stores more than 10,000 records; an optional Bluetooth printer prints results on site.

6. Wi-Fi and Bluetooth connectivity plus a USB port for fast batch upload of data to a PC.

7. Water-resistant housing; the measuring chamber resists the ingress of 0.5 mL of liquid.

8. Standard USB-C 5 V 2.1 A input with BC 2.1 charging protocol support: compatible with third-party phone chargers, cables and power banks, with intelligent lithium-battery charge management for continuous mains operation.

9. Average measurement with automatic range switching.

10. The default display unit is NTU; other units such as FAU, FNU, FTU, EBC, ASBC and mg/L can be switched by the user.

11. Continuous multi-point turbidity calibration, zero-point calibration and built-in standards are supported.

12. Bilingual Chinese / English operating system.

V. Technical Parameters