接地电阻测试仪

Digital Earth Resistance Tester
ST-1520 Digital Earth Resistance Tester capable of measuring earth voltage(VAC). 2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit. lAuto power off function. The timer operates automat ically about three to five the "PUSH BUTTON SWITCH" and "TIMER ON BUTTON" are pressed together. This will keep the test "ON" for about three to five minutes. Then auto power off. minutes after pressing. Data hold function. Small and light weight. Calibration performed with supplied test leads. EC 1010 CAT III 200V