(3) Turn the leakage current adjustment knob while observing the leakage current value on the instrument display. Select the test mode: if manual testing, set the timer switch to "Off"; if timed testing, set the timer switch to "On" and adjust the test time value by pressing the "+" or "-" keys next to the test time setting display window to achieve the desired setting. Select the output voltage mode: if DC voltage output is required, press the DC/AC switch; otherwise, it remains in AC output mode. Before testing, perform an instrument check: adjust the output voltage to the required test voltage, then short-circuit the high-voltage output clamp with the ground clamp. The instrument should emit an alarm sound, indicating normal operation; otherwise, stop use and report for maintenance. Press the start button, at which point the test lamp lights up. Slowly turn the output voltage adjustment knob while observing the voltage value on the instrument display to reach the required value. During this process, if the instrument emits an alarm and the over-leakage indicator lights up, the tested object is deemed unqualified; if no alarm sounds and the over-leakage indicator does not light up, it is qualified. After the test, cut off the output voltage. For manual testing, reduce the voltage to half of the test voltage before pressing the reset button to cut off; for timed testing, the instrument automatically cuts off the output voltage when the set time expires. 2. The testing process of this instrument involves high voltage, so it is mandatory to wear insulating rubber gloves and stand on an insulating rubber mat during the test to prevent life-threatening electric shock. The experience content is for reference only. If you need to solve specific problems (especially in legal, medical, and other fields), it is recommended that you consult professionals in the relevant fields in detail. Write experience, make money. If you want to complain, please go to the Baidu Experience Complaint Center. If you want to provide opinions or suggestions, please go to the Baidu Experience Management Bar for feedback. ©2022Baidu 京ICP证030173号-1 京网文【2013】0934-983号