Chapter 2 Operating Information 17
Notice the display's MRNG (manual range) annunciator is on. This
annunciator is on whenever you are not using autorange.
Manual Ranging The second choice lets you manually select the range. When the multimeter
is in the measurement mode (that is, the multimeter is making and displaying
measurements or the display is showing OVLD) you can change the range
by pressing the up or down arrow keys. To go to a higher range.
Press:
By repeatedly pressing the up arrow key, you can increment up to the highest
range. When you reach the highest range, pressing the up arrow key no longer
changes the range. To go to a lower range.
Press:
By repeatedly pressing the down arrow key, you can decrement down to the
lowest range. When you reach the lowest range, pressing the down arrow key
no longer changes the range. To return to autoranging.
Press:
Self-Test When you applied power to the multimeter, it automatically performed a
limited power-on self-test. Before you start making measurements, however,
you may want to have more confidence that the multimeter is fully
operational. This is the job of the self-test. The self-test performs a series of
tests that check the multimeter's operability and accuracy.
Note Always disconnect any input signals before you run self-test. If you leave
an input signal connected to the multimeter, it cause a self-test failure.
The self-test takes over 50 seconds. To run self-test.
Press:
If the self-test passed, the display shows:
When self-test passes, you have a high confidence that the multimeter is
operational and, assuming proper calibration and autocalibration, that
Auto
Test
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