Introduction: The four-terminal test method is currently a relatively advanced test method, mainly for product testing with high precision requirements; this instrument is widely used in production enterprises, colleges and universities, and scientific research departments, and is an important tool for testing and analyzing the quality of conductor materials and semiconductor materials. Tool of. This instrument is equipped with various measuring devices to test the conductivity of different materials. Liquid crystal display, no need for manual calculation, with temperature compensation function, automatic selection of conductivity unit, BEST-300C material conductivity tester automatically measures and automatically converts the range according to the test results, without manual multiple and repeated settings. Optional: Equipped with software that can be controlled by a computer, save and print data, and automatically generate charts and reports. The instrument uses a 4.3-inch large LCD screen to display, and displays resistance value, resistivity, square resistance, conductivity value, temperature, pressure value, and automatic unit conversion. It can be configured with different test fixtures to meet the test requirements of different materials. The test fixture can be purchased according to the requirements of the product and the test project. It provides a choice of Chinese or English language operation interface to meet the needs of domestic and foreign customers. Features: 1. Easy-to-view display/intuitive operability: high-brightness, ultra-clear 4.3-inch color LCD display; easy to learn and intuitive to use; 2. The basic setting operation is simple, square resistance, resistance, resistivity, conductivity and sorting results; a variety of parameters are displayed at the same time. 3. Four and a half digits display reading; eight range automatic or manual test 4. The instrument is equipped with a constant current source switch, which can effectively protect the DUT, that is, let the probe head touch the material under test first, and then turn on the constant current source switch to avoid instant ignition. In order to improve the work efficiency, if the probe is charged with voltage and touches the single crystal and has no effect on the material and measurement, the constant current source switch can be kept on all the time. 5. It can be tested with a variety of probes; it can also be tested with a variety of test benches 6. The thickness can be preset, the resistivity of the sample can be automatically corrected, and the resistivity can be calculated without looking up the table. 7. Automatic current commutation, and resistivity (or sheet resistance) measurement under forward and reverse currents, and the average value is displayed. When measuring thin slices, thickness correction can be performed automatically. 8. Double electrical measurement test mode, high measurement accuracy and good stability. 9. With temperature compensation function, it can correct the deviation of test results caused by the temperature drift of the tested material. 10. The comparator judgment light is displayed directly, no need to check the screen, and the work efficiency can be improved. technical parameter: Resistance basic accuracy: 0.05%; Basic accuracy of square resistance: 3%; Basic accuracy of resistivity: 3% The relative error of the whole machine measurement: ≤±3%; Measurement standard uncertainty of the whole machine: ≤±3% Measuring range: Resistance: 10-4Ω-10-5Ω; Square resistance: 10-4Ω/□-105Ω/□; Current range: 1uA, 10uA, 100uA, 1mA, 10mA, 100mA six gears Calibration function: manual or automatic selection of test range Full range automatic reset Sorting function: over upper limit, qualified, over lower limit Test mode: It can be connected to a computer for testing, or a stand-alone test without a computer Software function (optional): The software can record, save, and test data of each point; it can be used by users to perform various data analysis on the data.
Introduction: The four-terminal test method is currently a relatively advanced test method, mainly for product testing with high precision requirements; this instrument is widely used in production enterprises, colleges and universities, and scientific research departments, and is an important tool for testing and analyzing the quality of conductor materials and semiconductor materials. Tool of. This instrument is equipped with various measuring devices to test the conductivity of different materials. Liquid crystal display, no need for manual calculation, with temperature compensation function, automatic selection of conductivity unit, BEST-300C material conductivity tester automatically measures and automatically converts the range according to the test results, without manual multiple and repeated settings. Optional: Equipped with software that can be controlled by a computer, save and print data, and automatically generate charts and reports. The instrument uses a 4.3-inch large LCD screen to display, and displays resistance value, resistivity, square resistance, conductivity value, temperature, pressure value, and automatic unit conversion. It can be configured with different test fixtures to meet the test requirements of different materials. The test fixture can be purchased according to the requirements of the product and the test project. It provides a choice of Chinese or English language operation interface to meet the needs of domestic and foreign customers.
