GE DMS Go Operator's Manual page 116

Chapter 4. Measuring and Recording Data
4.1 Selecting the Measurement Method (MEASURE - MODE) (cont.)
Diff - Display of differential values. DIFF shows the difference from a NOMINAL value (located just below that function) as an absolute
•
value or as a percentage related to NOMINAL. Positive means "More than" Negative means "Less than" NOMINAL absolute or
relative in percentage. For example, for a NOMINAL thickness of 5.00mm for a tube wall, then a 4.50mm is indicated as -0.50mm, and
10% delta value. The delta symbol means Difference.
Note: Use the F3 and F4 keys to enter the NOMINAL option, and to enter values in increments of 10. Use the joystick to enter values in
increments of 1.
Thickness - The thickness currently being measured (if the probe is coupled) or the last valid thickness value measured. The displayed
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numerals will appear "solid" whenever the probe is coupled and "hollow", or as a series of dashes (- - -), when uncoupled. The Last
Reading function sets the appearance when uncoupled.
In the MAIN menu, scroll to the MEASURE submenu using the joystick (
1.
2. Use the joystick (
3. To change the mode, either move the joystick (
4. After completing your selection, move the joystick up or down (
to the Main Menu.
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) to select the MODE function.
) or press the function toggle.
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) to navigate away from this function, or press HOME to return
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