Changing Display Units
The AVA is capable of changing units used for display by using a simple menu. It is possible to display
vibration in units of ips, mils or g's. Phase can be displayed in units of degrees, clock hours, radians, or
Chadwick-Helmuth clock hours. Track can be displayed in units of mm, meters, feet, inches, or mils. Once
the units are set, they remain installed until they are changed using this menu or the system is reformatted.
To modify the selected display units, place the cursor over the Units selection and press DO. The entry
screen will appear. Use the UP and DOWN arrow keys to select the type of unit to be modified. Use the
LEFT and RIGHT arrow keys to toggle between the possible unit choices. One or all of the unit types can be
modified while in the Entry Form. Once the choices have been made, press the DO key to install the choices
in the database. To cancel changes, press the QUIT key to exit anytime.
Adding a New Tail Number
A new tail number can be added from the setup menu by positioning the cursor over the Tail Number
selection and pressing the DO key. An Entry Form will appear. The numbers can be entered from the
numeric keypad and letters can be entered by toggling through the alphabet using the F1 and F2 function
keys. F1 will toggle forward through the alphabet one character at a time and F2 will toggle backward. The
RIGHT and LEFT arrow keys can be used to select a specific character position. After the desired number
has been entered, press the DO key to store the result in the database. To cancel changes, press the QUIT
key to exit anytime.
e. Selecting Test
The Test selection of the Manager Menu, figure 7, allows the operator to select either testing of the CADU keypad
or the CADU display screen. The Keypad Test provides the operator with a means of verifying the proper
operation of the CADU input keys, while the Display Test allows the operator to verify that the display screen is