(1)Screen: 65K True Color matrix LCD, digital adjust the backlight, display the operation menu and the test results.
(2)High voltage terminals: Connect instrument terminals: The yellow, green,red and black terminals with the corresponding A, B, C ,0 three phase of the tested transformer high-voltage side.
(3)Low voltage terminals: Connect instrument terminal: The yellow, green, red and black with the corresponding a, b, c ,0 three phase of the tested transformer
(4)AC 220V:Power supply input.
(5)Printer: Print the testing results.
(6)Direction key: Up, down, left, and right keys are used to select menus and modify options
(7) OK: After selecting, makes sure of the function.
(8)Back key: Press this button to stop the test or return to the previous state.
(9) Earthed terminal.
(10)RS232: Communication interface.
(11)USB:USB Flash disk.
(12)Test key:After the data is set, press and start testing.
(13)Cancel:Stop measuring or return to the previous state.