AEA Technology 20TDR, Основное руководство

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5
Hard Power Down
If the firmware hangs up during operation the TDR may not power down with a 1 second press of
the ON/KEY. In this case press and hold the key for at least 10 seconds. When released, the
TDR should power down. Power up using the Soft Reset instructions.
Arrow, Escape and Enter Keys
Arrow Keys – In the menus the up/down arrow keys control the cursor
arrow and the left/right arrow keys control the selected item’s options or ranges. In the
Measurement Screen the up/down arrow keys activate for the function selected. The left/right
arrow keys control the Range, Zoom, Cursor 1, and Cursor 2 when those functions are active.
The up/down keys control the Scale or Tones selection. The
◄►▲▼ Indicators in the menus,
Help Menu, this guide, the Operating Manual indicate when to use the appropriate arrow keys.
Escape Key – This key is used to exit the menus and either return to the
Measurement Screen or back up one menu level. Any changes made in the menus will be saved
and applied to the measurements or instrument operation when Esc is pressed.
ENTER key – This key is used to accept alpha-numeric changes in the menus.
Example: Save function requests a name for the saved trace. After the name is complete using
the alpha-numeric keypad, press ENTER to store the trace.
The ENTER key is also used to perform a soft reset of the instrument’s firmware.
See “Soft Reset” instructions on previous page.