FDT-0641 Automatic volume resistivity tester Scope Automatic volume resistivity tester is based People's Republic of China Electric Power Industry Standard DL / T421-2009 requirements of design and manufacture. Fully compliant with the latest standards, it is to replace the old standard equipment, the best choice Features 1, with three terminal electrodes cup, completely DL / T421-2009 requirements and design 2, with color LCD display, touch screen operation 3, with integrated design, temperature refrigeration in one range more widely 4, with automatic drain system, reduce labor intensity 5, adopt automatic discharge, using the classic PID temperature control, automatic climate control, automatic measurements with save, print function test results. Technical Parameters  1, the test range: 5.0E5 ~ 5E13 · m. 2, temperature range: the range of 20 ° ~ 99 degrees of freedom settings, temperature control accuracy of ± 0.5 °. 3, holding time: 0 to 99 minutes in any setting 4, pressing time: arbitrarily set within 0 ~ 99S. 5, the number of experiments: 1 to 3 times a set, automatically calculate the average after the end of the experiment 6, the electrode cup Parameters: Type: Three-side electrode cup, internal and external dual temperature control, material: high-purity stainless steel 7, electrode spacing: 2mm 8, electrode capacitance value Cup: 30PF 9, empty cup Insulation resistance:> 3.0E12 10, Repeatability: results> 1.0E10 · m, the relative error of