① High voltage output: dedicated DC high voltage output terminal;
② Voltmeter: high voltage output voltage indicating kV meter;
③ Ammeter: output current indicating mA meter;
④ Fuse socket: the place where the fuse of the 220VAC power supply system is installed;
⑤ Power socket: working power supply of the instrument, 220VAC connection port;
⑥ Power switch: "I gear" uses AC220V power supply to supply power to the system; "0 gear" shuts down;
⑦ Frequency adjustment in positioning mode: adjust the pulse output frequency in positioning mode;
⑧ Voltage adjustment: After starting the device, you must first turn the knob counterclockwise to the end. When the high voltage start button light is on, press the start button, and then adjust clockwise to increase the output high voltage from small to large, and adjust counterclockwise to make the output high voltage decrease from large to small;
⑨ High-voltage stop button: When the test is completed or there is an abnormality, press this button to cut off the high-voltage output, the high-voltage light will be off, the stop button light will be on to indicate that there is high-voltage output, and if it is off, it means that there is no high-voltage output;
⑩ High voltage start button: When the start button light is on, it means that the voltage output is in the zero position. When the start button is on, the start button is valid. If the start button light is not on after turning on the power switch, adjust the voltage adjustment knob counterclockwise until the light is on. When the light is on, press this key to start the device and generate high voltage output;
⑪ Overcurrent protection switch: When the blue light is on, the overcurrent protection is turned on, and when the blue light is off, the overcurrent protection is turned off.
⑫ Positioning/withstand voltage function switch button: when the red light is on, it is the withstand voltage function, and when the green light is on, it is the positioning function;
⑬ Grounding column: instrument grounding point, safety protection;



