4105 ER接地电阻测试仪

Analog Earth Resistance Tester
The Model 4105 ER Analog Earth Resistance Tester is capable of measuring earth resistance. 2mS measuring current permits current permits the testing if earth resistance without tripping earth leakage current circuit breakers in the circuit under test. In addition to the facility for precision measurement, test leads for simplified two wire mearuring system are also supplied as standard accessories. Lamp for the scale's panel( auto shut off in 10 seconds), Battery operated and battery indicator. ). IE C/EN 61010-1 CAT III 200V and Calibration performed with supplied test leads.