Range 0.01ohm~2000ohm Etcr3000 Earth Ground Resistance Tester ----rs232 Interface

Range 0.01ohm~2000ohm  ETCR3000 Earth Ground Resistance Tester ----RS232  Interface             Measurement Range & Accuracy Class                        Function      Range      Accuracy      Resolution              Earth Ground Resistance      (0.01~20)Ω      ±1%rdg±3dgt (Assistant Earth Resistance100Ω±5%, Turn-ground voltage<10V)      0.01Ω              (0.1~200)Ω      0.1Ω              (1~2000)Ω      1Ω              Earth Voltage      (0~600)V AC      ±1%rdg±3dgt      1V             (Note:23°c±5°c,75%rh)   -------------------------------------------------------------------------------------------------------------------------------------------------   Product Characteristics& 65306;   Earth resistance measurement, Earth voltage measurement, Low resistance measurement. New material body, stands hits, avoid slip, Solid and durable. Wire resistance verification,Data upload with RS232, Alarm function,Software monitoring,Data memory: 400 sets,Resistance range: 0.01Ω~2000Ω,Earth voltage range: 0~600V   -------------------------------------------------------------------------------------------------------------------------------------------------   . Technical Specifications& 65306;               Model      ETCR3000              Function      Earth resistance measurement, Earth voltage measurement, Low resistance measurement              Power Supply      DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours )              Measuring Mode      Precise 3-pole measurement, simple 2-pole measurement              Measuring Method      Earth ground resistance: constant current change-pole method, measurement current 3mA Max,820Hz; Voltage to ground: average value rectification              Data Mode      Average value, maximum, minimum              Wire Resistance Verification      Avoid error caused by testing wire such as failed to be fully inserted into tester interface or by poor contact or by user's replacing or lengthening testing wires, making it more accurate for earth ground resistance measurement.