Turn on the power switch, and the boot screen appears on the display.



After a few seconds, the main menu as shown below (figure) appears. The specific operation instructions for the main menu are as follows:



l Line number: Press the "Function" key to move the cursor to "Line number", then press "OK" to enter; press the "Function" key to select the position to adjust, and a small cursor will appear under this position; use the "Increase" and "Decrease" keys to select, and after all positions are adjusted, press "OK".



l PT ratio: Press the "Function" key to move the cursor to "PT ratio", then press "OK" to enter; press the "Function" key to select the position to adjust, and a small cursor will appear under this position; then use the "Increase" and "Decrease" keys to select, and after the position adjustment is completed, press "OK".



l Test phase sequence: Press the "Function" key to move the cursor to "Test phase sequence", then press "OK" to enter; press the "Function" key to select the position to adjust, and a small cursor will appear under this position; use the "Increase" and "Decrease" keys to select, and after the position adjustment is completed, press "OK". Among them, A, B, and C represent single-phase measurement, X represents three-phase simultaneous measurement.



l Compensation angle: The adjustment method is the same as above. Generally, the influence of interphase interference is about 2°~5°. Due to the difficulty in accurately calculating the interference amount, hard compensation is generally not recommended. Instead, it is set to 0.0°. According to the regulations, the data change trend over a period of time can be compared longitudinally. If you need to adjust the side phase correction angle, please refer to the relevant sections of the "Measurement Principle" later. If three-phase simultaneous measurement is selected, the angle is automatically compensated.



l Date: The adjustment method is the same as above. Use the "Function" key to select the item to adjust: year, month, day, hour, minute, second. Use the "Increase" and "Decrease" keys to adjust. After all adjustments are completed, press "OK".



l Mode: Press "OK" to switch among wired, inductive, and wireless modes.



l View: Press the "Function" key to move the cursor to "View", then press "OK" to enter (as shown in Figure 6); use the "Increase", "Decrease", and "Function" keys to select the data to view, and press "OK" to display that set of data.



l Measurement: Press the "Function" key to move the cursor to "Test", then press "OK" to enter measurement, and the measurement screen as shown in Figure 7 appears.



Display: Switch the display screen to show all test information or a brief display. If three-phase simultaneous measurement is selected, press "Increase" and "Decrease" to cyclically display the information of the three phases.



Print: The measured data can be printed out, but not stored.



Store: Store the current data. Select the storage location for the data and press "OK" to save.



Exit: Exit the measurement and return to the system main menu.