2.2.1 Touch Panel Display
The TVI Touch Panel Display is the means by which data is entered into the unit, while the unit is
in manual control. The TVI will display all active (ON) generators in red and all selected, but
inactive (OFF), generators in green. If a generator is not selected it will be grey. If an entered
value is out-of-range, an error screen will appear to notify the setting is out-of-range.
2.2.1.1 Keypad Entry
The keypad entry provides an interface to the user when entering a value in the various screens.
Touching a data entry window on the TVI will activate the Numeric Keypad. Pressing Enter or
Cancel will return the user to the previous screen that is in use. Pressing Ramp will select that
value to ramp when using the control knob. Pressing Clear will clear the value you just entered.
Figure 8 TVI Numeric Keypad
2.2.1.2 Alphanumeric Keypad
The alphanumeric keypad allows the entry of ASCII text into the TVI. This keypad is used to enter
file names in length for the primary name, and a 3 character extension in the file management
screen. This screen is also used when using the Transducer Test Setting Screen.
Figure 9 TVI Alphanumeric Keyboard
2.2.2 Control Knob
The control knob will change the values after touching the display to highlight the value that
requires ramping. Clockwise rotation increases and counterclockwise decreases. The control
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