7-inch color touch screen, navigation operation;

Support measurement of conductivity, resistivity, total dissolved solids (TDS), salinity value and temperature value;

Intelligent operating system with functions such as method management, electrode management, calibration management, data management and user management;

Support electrode management function, can manage up to 5 conductivity electrodes, each electrode can save 20 sets of calibration records;

Support electrode correction function, users can correct the electrode constant or TDS conversion coefficient;

Support intelligent frequency conversion, one electrode can cover the common measurement range of 0-200 ms/cm;

3 reading modes: Smart-Read: "Fast, Medium, Strict, Custom" multiple balance conditions are optional; Timed-Read: Timing termination measurement and timing automatic interval measurement 2 timing reading modes are optional; Cont-Read: Clearly grasp the continuous change process of the sample;

Support automatic identification of conductivity standard solution, default 4 kinds of GB standard standard solution, support up to 5 points of multi-point calibration;

Support multiple conductivity compensation methods including pure water compensation;

Support a variety of salinity compensation methods including seawater salinity compensation;

Supports the storage of up to 100 sets of measurement methods; supports the storage of 1000 sets of conductivity, resistivity, total solid dissolved matter (TDS), and salinity value measurement results, in line with GLP specifications; has a data statistics function, allowing users to perform measurement results Statistics, review, analysis, comparison and preservation;

Support USB, RS232 to connect to PC, serial printer; allow printing and output of measurement results;

Support Chinese and English languages; support firmware upgrade, support U disk hot swap; support direct connection to autosampler.

The DDSJ-319L conductivity meter is a newly designed new generation laboratory high-precision analytical instrument. It adopts a modular structure and supports the measurement of conductivity, resistivity, total solid dissolved matter (TDS), salinity and temperature.