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9640A
Instruction Manual
Power-On Sequence
The power-on sequence may be run with or without a Leveling Head
connected to the Instrument.
After connecting the Instrument to line power, use the power switch on the rear panel to
power-on the Instrument. See Figure 2-1.
The Instrument displays an initialization screen for about 4 seconds during the power-on
sequence and then runs a power-on self test. If a Leveling Head is connected to the
Instrument, the Leveling Head will also be tested.
Power-On Self Test
The power-on self test performs a functional test of the source and, if attached, the
Leveling Head. The self test is neither an acceptance test, performance test, nor
verification test. Self test simply verifys the overall functional operation of the
Instrument. The power-on sequence initiates the self test, and the test is run every time a
power-on sequence occurs.
A progress bar at the bottom of the display indicates self test is running. Upon successful
completion of the test, a Leveled Sine screen, similar to the First Power-On screen,
replaces the initialization screen shown earlier. The appearance of the Leveled Sine
screen indicates the Instrument is ready for use.
If any test in the self-test sequence fails, another screen will show the number of failures
attributed to both the Leveling Head and the Instrument. The user can view any failures
by pressing the View Fail soft key. For more information regarding self-test failures refer
to Chapter 7, Reviewing the Results and Interpreting the Results.
2-8
Note
Initialization Screen
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