High Voltage DC Power Regulated DC/DC with 400W Output for Cable Fault Locator

1. Safety Ground: Ground of the instrument casing to prevent the casing from becoming live or to prevent electric shock.

2. High Voltage Output: Dedicated DC high voltage output terminal.

3. Voltmeter: High voltage output indicator, used to display the voltage value in real time.

4. Power Socket: Instrument operating power supply, AC 220V±10%/50Hz±1Hz.

5. Fuse Holder: Fuse installation location for the AC 220V power supply system.

6. Power Switch: "Position 1" indicates that the AC 220V power supply is on to power the system;

"Position 0" indicates that the AC 220V power supply is off to power the system.

7. Start Button/Zero Position Indicator: When the zero position indicator is lit (yellow), it indicates that the instrument is in the zero position. Pressing the start button will activate the high voltage output. When the zero position indicator is off, it indicates that the instrument is not in the zero position. Rotate the voltage adjustment knob counterclockwise to the zero position, the zero position indicator will light up, and then press the start button to activate the high voltage output. 8. Stop Button/High Voltage Indicator: When the test is complete or an abnormality occurs, press this button to cut off the high voltage output. The high voltage indicator light will illuminate to indicate that high voltage output has started; the high voltage indicator light will turn off to indicate that high voltage output has stopped.

9. Voltage Adjustment Knob: Used to adjust the voltage. Clockwise adjustment increases the output high voltage from low to high, and counterclockwise adjustment decreases the output high voltage from high to low.

10. Overcurrent Protection Switch: Pressed indicates that the overcurrent protection function is activated; released indicates that the instrument has triggered overcurrent protection.

11. Ammeter: Indicates the magnitude of the low-voltage side current.