How much is the conductive four probe resistance tester

Semi conductive rubber four probe resistance testerSuitable for production enterprises, universities, and research departments, it is a tool for inspecting and analyzing the quality of semiconductor materials; LCD display, automatic measurement and coefficient compensation, with temperature compensation function, automatic range conversion; Adopting AD chip control, constant current output, optional: PC software, saving and printing data, generating reports for: covering film; Conductive polymer film, high and low temperature electric heating film; Thermal insulation, conductive window film, conductive (shielding) cloth, decorative film, decorative paper; Metallized labels, alloy foil films; Melting, sintering, sputtering, coating, coating layers, resistive and capacitive touch screen films; Electrode coatings, other semiconductor materials, thin film materials, and related products for square resistance testing

Semi conductive rubber four probe resistance testerWhen measuring the resistivity of conductive materials using three or two electrodes, the accuracy of the measurement may be affected by the surface resistance between the electrodes and the measured material. This device uses a four electrode (four point probe or four probe) method to measure the volume resistivity of conductive and anti-static materials, which can overcome the error caused by surface contact resistance.
GB 11210 "Determination of Electrical Resistance of Vulcanized Rubber Antistatic and Conductive Products", ISO 1853 "Conductive and Antistatic Rubber - Measurement of Electrical Resistance", ISO 3915 "Test Method for Volume Electrical Resistance of Conductive Plastics", national standard GB 2439 "Determination Method for Electrical Resistance (Coefficient) of Conductive and Antistatic Rubber", national standard GB/T15662 "Test Method for Volume Electrical Resistance of Conductive and Antistatic Plastics", transportation industry standard JT 230-95 "Automotive Conductive Rubber Drag Belt", and American ASTM D991 The standard "Rubber Characteristics - Standard Test Method for Volume Resistance of Conductive Materials and Anti static Products" specifies the testing methods for volume resistivity of conductive, anti-static plastics, and rubber. These standards require the use of the four electrode method for measurement, and its measurement accuracy will not increase due to surface contact resistance, especially when measuring conductive materials. Therefore, the accuracy of using four electrode measurement is very high. The volume resistivity measurement device for conductive and anti-static materials, combined with the EST103 (FS3) electrostatic meter with an input resistance of up to 1014 Ω and the picoampere ammeter for measuring ultra weak currents (Feinian 10-15A), can measure 20 orders of magnitude using the standard four electrode method. The resistivity is measured within the range of 10-9 Ω· m to 1011 Ω· m. The measurement range is 10-9 Ω· m ~1011 Ω. m (* with additional testing three electrodes and power supply,Can measure volume resistivity up to 1019 Ω. m) Accuracy: 1% static voltage: 100mV~± 200V, input resistance ≥ 1014 Ω (100T Ω), 0.5% current: 1 × 10-15A (flying safety fA), 0.5% voltage source 0-100 test shielding box (including national standard four electrodes) (note: different standards have different electrodes, please specify when ordering). Insulation board ≥ 100T Ω· m (1014 Ω· m)

This instrument adopts a 4.3-inch large LCD screen display, which simultaneously displays resistance values and resistivity

Resistance measurement range: With advanced design style, Zhuoyue's manufacturing technology, and a comprehensive service system, Beiguang Precision Instrument Company is a professional line engaged in the production of testing instruments and automation equipment for scientific research. Through coordinated development with the industry, the company improves its competitiveness and technological content. Product testing; This instrument is widely used in production enterprises, universities, and research departments for BEST-300C technology. It adopts the design concept to create a detection instrument with excellent performance. Zhuoyue ensures the quality and performance of every factory instrument, with high-quality service and standard equipment: one set of testing platform, one set of host, and one set of power and data cables. Power supply: 220 ± 10% 50HZ/60HZ. The software can be controlled by a computer, and data can be saved and printed. It automatically generates charts and resistors: 1 × 10-5~2 × 105 Ω. Through reform and hard work, new products with Chinese characteristics have been developed to improve the user experience of the instrument. Measurement error of BEST-300C semiconductor material resistivity tester ± 5%