UNI-T UT595 Multifunction Loop Testers Earth Ground Line Loop Impedance  Tester Insulation Resistance Meter w/RCD Protection       Description:     UT595 is a kind of comprehensive digital multifunctional electrical safety test instrument. The overall instrument adopts new design as well as large-scale integrated analogy circuits, digital circuits and microcomputer chip combination. It is mainly used to complete measurement of parameters including (RCD) electric leakage protector, loop circuit/line impedance, grounding continuity test, test insulation resistance, DC voltage, AC voltage and phase sequence judgment; it has more functions, higher accuracy and stable performance as well as it is reliable and convenient for operation. It is applicable to measuring (RCD) electric leakage protector, measuring insulation of various electrical equipment and grounding continuity test. UT593/UT595 is your ideal choice for maintenance, test and inspection on electric protector of various electrical equipment.      Specifications:           Functions     Range     Accuracy           Open circuit output  voltage     250V     +-10%           500V           1000V           Short circuit current     2mA           Insulation Resistance  Measurement     250V     0.01M ohm     0.05M ohm to 1000M ohm: 5%+5           0.1M ohm           1M ohm           500V     0.01M ohm           0.1M ohm           1M ohm           1000V     0.01M ohm           0.1M ohm           1M ohm           Grounding (Earthing)  continuity measurement     Range     0.00 ohm-199 ohm;+-2%+5           0.00-2 ohm, testing current is more than 200mA           Line impedance     Applied  voltage     195V-440V,Frequency: 45Hz-65Hz; Testing current:20A           Range     0.01 ohm-2000 ohm: 5%+5; PSC: 0KA-26KA.           Loop impedance     Applied  voltage     195V-253V,Frequency: 45Hz-65Hz; Testing current: 20A           Range     0.01 ohm-2000 ohm: 5%+5; PFC: 0KA-26KA.           Loop impedance without  tripping     Applied  voltage     195V-253V,Frequency: 45Hz-65Hz; Testing current: 20A           Range     1.00 ohm-2000 ohm: 5%+5; PFC: 0KA-26KA.