When the DRK321B-II surface resistivity tester is used to measure simple resistance, it only needs to be manually placed in the sample without conversion results automatically counted, the sample can be selected and solid, powder, liquid, three types can be automatically calculated Convert the resistivity. Standards Compliant: GB/T1410-2006 "Test method for volume resistivity and surface resistivity of solid insulating materials" ASTMD257-99 "Test Method for DC Resistance or Conductivity of Insulating Materials" GB/T10581-2006 "Test Method for Resistance and Resistivity of Insulating Materials at High Temperatures" GB/T1692-2008 "Determination of Insulation Resistivity of Vulcanized Rubber" GB/T2439-2001 "Determination of electrical conductivity and dissipation resistance of vulcanized rubber or thermoplastic rubber" GB/T12703.4-2010 "Evaluation of electrostatic properties of textiles Part 4: Resistivity" GB/T10064-2006 "Test Method for Measuring Insulation Resistance of Solid Insulating Materials" Features: 1. Wide resistance measurement range: 0.01×104Ω～1×1018Ω (current and voltage calculations are required for 14th power and above); 2. The current measurement range is: 2×10-4A～1×10-16A; 3. Small size, light weight and high accuracy; 4. Resistance, current, and resistivity are displayed at the same time, and displayed on a large color screen; 5. Directly display resistance and resistivity, no need to convert, just input the thickness of the sample, and the resistivity can be calculated automatically by the instrument; 6. Direct reading of resistance and resistivity results during testing of all test voltages (10V/50V/100V/250V/500V/1000V), eliminating the inconvenience of multiplying the coefficient by the old high resistance meter under different test voltages or different ranges It is troublesome, and supports the storage, retrieval and printing of test results. It can measure high resistance and micro current, and it can also directly measure resistivity. Technical Parameter: 1. Resistance measurement range: 0.01×104Ω～1×1018Ω; 2. The current measurement range is: 2×10-4A～1×10-16A; 3. Display mode: digital color screen touch display; 4. Built-in test voltage: 10V, 50V, 100V, 250V, 500V, 1000V; 5. Basic accuracy: 1%; 6. Operating environment: temperature: 0℃～40℃, relative humidity <80% 7. Test voltage in the machine: 10V/50V/100V/250V/500V/1000V, switch arbitrarily; 8. Input method: large touch screen; 9. Display results: resistance, resistivity, current; 10. Test requirements: The diameter is greater than 100mm (less than this size, the electrode needs to be customized).