I. Overview CC2521E Programmer Medical Ground Resistance Tester is a universal security parameters tester is widely used to test safety parameters of medical equipment, electrical equipment, power lines, cable lines, and a variety of electrical and electronic products. With the establishment of national safety standards, so that the security parameters of the test instrument for diversified radio factory, electronic products and other manufacturers of essential testing equipment. The instrument conditions: ambient temperature 0 ~ 40 ℃; relative humidity less than 75%. Second, the main technical indicators (1) Test voltage: AC 6V (2) testing current: 20 ~ 200mΩ: 25A ± 5% 200 mΩ ~ 600mΩ: 10A ± 5% (3) to test resistance range: 20 ~ 600mΩ ± 5% ( ± 3 digits) (4) Timing range: 1 to 99 seconds ± 5%. Manual control. (5) Operating voltage: AC 220V ± 10% 50Hz (6) in line with medical standards GB9706.1-1995 and IEC601-1-1988