Fast delivery Primary Current Injection 24-hour customer service I customizable Adopted technology of ARM chip controlling output and toroidal transformer with high-capacity and equipped with LCD display meter, the HZ-109S2 Primary Current Injection Tester could simultaneously display primary current, secondary current and turn ratio. The product possesses the characteristics of nice appearance, large output capacity, small size, light weight and so on with external aluminum alloy case and PC panel. It is mainly suited for CT turn ratio and contact resistance tests of power system and other occasions needed high current test. 2.3 LCD Screen Digital Display: Simultaneous display of primary current and secondary current as well as the turn ratio; The Range of Primary Current: 02200A, Resolution: 0.1 A; The Range of Secondary Current: 0~6A; Resolution: 0.001 A. 2.5 Usage Environment: Temperature -1040°C, •Ground Terminal: to ensure safe operation, please ground the wiring terminal. •The Terminal of Power Supply Input: AC: 220V±10% power supply is imported from the two terminals colored in red and black. • Indicated lights of Power supply: when the power inputs, the indicated light is on, if not, it notes that the incoming line has no power input and please check the incoming power line. •The Terminal of high current output. •Series or parallel pressure plate. •Series or Parallel Button: it presents series connection when the second pressure plate are put in the middle (that is the button is pressed). •The input terminal of secondary current measurement. . •The input terminal of stopwatch, and the stopwatch electric potential or the switch of connection points. • LCD (Liquid Crystal Display) which displays the value of primary current and secondary current, the turn ratio and the stopwatch. •Serial port, which could be connected with PC externally for program updates. •Output/ Cut off button (the red light is on when output). •Adjusting knob of high current output. •Power Switch: that is fast protection switch which is used for input power control and overload protection (of the instrumen