Preparation before use
Turn on the power with the “Power” switch in the “On” position. At this time, the nixie tubes that display the output voltage, leakage current and time and the indicators of each “test unit” should be on.
Rotate the “Voltage Adjustment” knob counterclockwise to the end, and each indication value is zero, then the hipot tester is in the initial state.
Function key description and setting
Alarm current setting
Select the alarm current range file according to the required alarm current value, press and hold the “leakage current test/preset” key, adjust the leakage current preset potentiometer, and at the same time observe that the displayed value in the leakage current display window reaches the required alarm value, stop adjusting Leakage current preset potentiometer, and then release the “leakage current test/preset” button, the leakage current setting is completed.
Timing setting
Set the “timing” key to the “on” position.
Note: When the “timing” key is in the “off” position, the timing is “∞”.
According to the required test time, turn the value on the “timing” dial, and at the same time observe that when the displayed value in the test time window reaches the required test time value, stop turning the timer preset dial, and the timer setting is completed.
Output voltage setting
Press the “Start” button, turn the “Voltage Adjustment” knob clockwise according to the required test voltage, and observe that when the displayed value in the output voltage window reaches the required voltage value, stop turning the “Voltage Adjustment” knob and keep the “Voltage Adjustment” knob. The position remains unchanged, press the “reset” button, the test voltage setting is completed.
Note: In the subsequent testing process, if you do not change the test voltage, you only need to press the “Start” button for each test. If you need to change the test voltage, repeat the above steps, and read the output voltage value directly from the “Voltage” display window of the instrument.
After confirming that the output voltage indication value of the instrument is “0” and the test light is “off”, insert one end of the high-voltage test wire (red) into the “AC high-voltage” output end of the hipot tester, and the other end is connected to the power input end of the tested object or other live components are connected. Then insert one end of the other test ground wire (black) into the ground terminal of the instrument and lock it, and the other end is connected to the shell (metal) of the object under test or the ground end of the power input end (if the object under test is connected to the ground or the ground wire) connected, the instrument ground must be connected to it).
Press the “Start” button, the “Test” indicator light is on, the voltage indication value is the current test voltage value, and the leakage current indication value is the current leakage current value on the tested object. The light alarm sounds, and the instrument automatically cuts off the output voltage; if the tested object fails within the test time, the “alarm” light is on, the buzzer sounds an alarm, and the ATO hipot tester automatically cuts off the output voltage, you can press the “reset” button to eliminate Call the police.
Use the wire control terminal to carry out the withstand voltage test (the “start” and “reset” buttons on the panel are invalid, and the “timing” key is placed in the “off” position.