Notes on operation of DC high voltage generator

Operating Instructions for DC High Voltage Generator

● The display lights, switches, knobs, etc. on the control box have been clearly marked. Please refer to the name of the components on the panel of the control box when viewing this operating instruction.

● The seven-core socket on the side of the high-voltage tower chassis is the socket for connecting the control box cable, and the copper terminal on the side of the chassis is the ground terminal for connecting the ground wire.

● The high-voltage shielded ammeter is a digital micro-ammeter. The jack on the top of the meter is the line jack to connect to the test product. It is also used as a power switch. Please unplug the plug when not in use and turn off the power automatically. When replacing the battery, please open the screw on the top cover. After replacing the battery, please buckle the cover and tighten with the screw. Open the back cover when changing the battery.

1. Connect the grounding terminal on the panel of the control box and the grounding terminal of the high-voltage tower with a grounding wire and connect the grounding wire of the site or the laboratory firmly. In order to ensure the safety of your current equipment, please check the ground wire repeatedly to ensure that each ground wire is good

Connect the control box to the high-voltage tower with the mentioned seven-core cable. The two ends of the cable are the same fast aviation plug. Pay attention to insert the slot on the side of the plug to the rough convex part on the inside of the socket and tighten it clockwise. (Use either end of the cable to connect to the control box or high-voltage tower) Connect the power cord, the power supply is a single AC 220V, power frequency 50Hz.

2. Turn on the power switch. At this time, the green light of the power switch and the panel indicator are on. The green light of the high voltage indicator lights up. If the high voltage indicates that the buzzer is in the on position, it will beep to remind the operator to increase the voltage. At this time, rotate the high voltage output adjustment knob clockwise to increase the voltage, and the voltmeter will be displayed as a load test product. The voltage KV value on the current, the ammeter shows the sum of the current flowing on the sample and all the leakage current, but does not include the current of the built-in high voltage divider. The current is measured in microamperes in units of UA.

If the power switch is turned on, the green light of the high-voltage display is not lit, and the red light of "zero" in the fault display is on, it means that the high-voltage output adjustment button is not at the zero position, please turn this button counterclockwise to the "zero position", and Return the trimming voltage knob to the zero position, the "zero return" light is off, and it can be boosted by adjusting clockwise.

3. If adjustment protection within the rated output voltage range is not required, turn the overvoltage protection setting knob clockwise to the maximum value. At this time, when the output voltage exceeds the rated output voltage, it will automatically protect and cut off the high voltage. If voltage regulation protection is required within the rated output voltage range, please increase the no-load boost to the predetermined protection voltage according to the above steps, and then slowly turn the overvoltage protection setting knob counterclockwise to the required voltage. For over-voltage protection, the "over-voltage" indicator lights, keep the over-voltage protection setting knob set at this position, return the boost knob to the zero position, and turn off the power. Connect the test product, and then automatically cut off the high voltage when the boost voltage exceeds the predetermined voltage.

4. When over-voltage, over-current and other faults occur, the high voltage is automatically cut off, the high-pressure display turns off green, the buzzer stops sounding, and the corresponding fault indicator lights up, indicating that the test product has been short-circuited. The button returns to the zero position, the fine adjustment knob is also at the zero position, then turn off the power switch, and then turn on the power switch to remove the protection and boost again.

● During normal operation and shutdown, the high-voltage adjustment knob should be returned to the zero position counterclockwise, then the fine-tuning voltage knob should be returned to the zero position, and finally the power switch should be turned off.

● The power switch is also used to protect the reset switch, so when the fault indicator (except the zero return indicator) is on, the power switch should be turned off and then on to release the protection and boost again.

5. When the load is a large capacitive load, in order to avoid excessive charging current and trigger overcurrent protection, please slow down the boost speed appropriately. After the test is completed, turn the output voltage adjustment knob counterclockwise to the zero position. At this time, the voltmeter still displays the voltage value on the sample. Please wait for the sample to discharge through the high voltage tower to below 20KV and then use the ground rod to discharge, to ensure safety

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