Shanghai Thunder Magnetic Conductivity Meter

Main features of DDS-307 conductivity meter

1.6.0 inch high-definition LCD display, key operation

2. Support functions such as automatic shutdown, power-off protection, and factory reset

3. Supports IP54 protection level

4. Standard configuration includes conductive electrodes, electrode brackets, and dust covers

5. Intelligent detection and automatic recognition

6. Intelligent endpoint discrimination, supporting balanced measurement mode and continuous measurement mode

7. Support manual temperature compensation

8. Automatically recognize 4 types of GB conductivity standard solutions and support 1-point conductivity electrode calibration

9. Support automatic frequency switching, equipped with 1.0 constant electrode to cover full range measurement

10. Data management, information traceability

11. Support data storage (50 sets), retrieval, and deletion

The Shanghai Thunder Magnetic Conductivity Meter is a fundamental and universal analytical tool used to measure the total ion concentration of a solution.

Although it cannot analyze specific elements like ICP-MS or separate complex organic compounds like chromatography, it has become a "working machine" instrument in fields such as environmental monitoring, industrial production, and laboratory research due to its simple operation, fast response, and low cost.

The Shanghai Thunder Magnetic Conductivity Meter is an instrument used to measure the conductivity of a solution.

Core principle: Ions in solution (such as Na?, Cl?)? 、 Ca?? Under the action of an electric field, it will move directionally and conduct electricity. The higher the ion concentration and the faster the migration speed, the stronger the conductivity of the solution. The conductivity meter calculates the conductivity of a solution by measuring the conductivity (reciprocal of resistance) between two electrodes.

Output parameters: Mainly measure conductivity, but many models also integrate measurement functions for total dissolved solids (TDS), salinity, and temperature.

Shanghai Leici's conductivity meter product line is very rich, ranging from portable to laboratory desktop, from economical to high-precision. Its technical characteristics can be summarized as follows:

Core components and technology:

Electrode (conductivity cell):

This is the key sensor of the instrument. Leici provides conductive electrodes with different constants (such as K=0.1, 1.0, 10) to adapt to measurements of different ranges (low constant electrodes for pure water and high constant electrodes for high concentration solutions).

The material is usually stainless steel or platinum to resist corrosion and ensure measurement stability.

Temperature compensation:

The conductivity of a solution is significantly affected by temperature. The lightning magnetic instrument is equipped with a temperature sensor and automatic temperature compensation (ATC) function, which can convert the conductivity values measured at different temperatures into standard values at 25 ° C, making the data comparable.

Measurement mode and function:

Multi point calibration: The model supports multi-point calibration to ensure measurement accuracy over the full range.

TDS and salinity conversion: Built in algorithm that can directly display TDS (total dissolved solids, usually conductivity multiplied by a coefficient) and salinity values.

Data storage and output: Many models have data storage capabilities and can transfer data to computers or printers through USB or RS-232 interfaces.

Main categories of product lines:

Portable conductivity meter (such as DDB series):

Features: Battery powered, compact and lightweight, sturdy and waterproof (often up to IP protection level), suitable for rapid on-site and outdoor testing.

Application: Environmental protection on-site law enforcement, aquaculture pond edge detection, factory process inspection.

Laboratory desktop conductivity meter (such as DDS series):

Features: Higher precision, more comprehensive functions, better stability, usually equipped with large display screens and more complete data management functions.

Application: Accurate quantitative analysis in water quality analysis laboratories, pharmaceutical QC workshops, and research institutes.

Online conductivity meter:

Features: It can continuously and real-time monitor the conductivity of liquids in pipelines or reaction vessels, and output control signals.

Application: Industrial process automation control, real-time monitoring of water treatment plants.

Technical parameters of DDS-307 conductivity meter