The DDSJ-308A conductivity meter (dot matrix digital meter) laboratory temperature compensation |

Product features:DDSJ-308A type laboratory conductivity meter is the use of single-chip microprocessor technology to design the instrument, electrical conductivity, water resistivity, total dissolved solids with accurate measurement of water solution (TDS), salinity (NaCl standard) and temperature function.The main features of this instrument are:1, using single chip microprocessor technology, automatic calibration, measurement range automatic conversion, the water solution (including general electrolyte solution and pure water) measurement for automatic temperature compensation, data processing precision.2, with storage and access to the function of the measurement data, a total of 100 sets of data can be stored.3, with a power down protection function, the instrument has been set after the parameters and storage of the data will not be lost.4, with the calibration of the electrode constant, calibration of TDS and conductivity of the conversion coefficient of the function.5, with a print interface, the current measurement data can be printed and stored historical data.6, with a clock function.7, the use of dot matrix liquid crystal display, Chinese interface, visual display.Two, the main technical indicators2.1 measurement range:Electrical conductivity: (0 ~ 1.999 * 105) S/cm;TDS: (19.99 ~ 0) g/L;Salinity: (0 ~ 8)%;Temperature: (-5 ~ 105).2.2 basic error of electronic unitElectrical conductivity: + 0.5% (FS) + 1 words;Salinity: + 0.10%Temperature: + 0.3 C + 1 words.2.3 stability of electronic unit+ 0.3% (FS) + 1 words /3h2.4 instrument normal working conditionsAmbient temperature: (5 ~ 35);Relative humidity: no more than 85%;Power supply: universal power supply (DC 9V, 400mA positive and negative)In addition to the geomagnetic field, there is no electromagnetic interference2.5 outline dimension, length * width * height, mm:200 * 210 * 702.6 weight: About 1kg