Fluke 123B/S Service Manual - Page 73

set the Input A and B sensitivity to the first test point in Table 4-2., keys move the ground level.

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4 Performance Verification 4.5 Input A and Input B Tests • Using change the time base to select manual time base ranging, and lock the time base on 10 ms/div. • Press to open the SCOPE INPUTS menu. • Press to open the SCOPE OPTIONS menu, and choose: SCOPE MODE: I NORMAL | WAVEFORM MODE: I SMOOTH • Move the Input A and Input B ground level (indicated by zero icon center grid line. Proceed as follows: ) to the Press to enable the arrow keys for moving the Input A ground level. Press to enable the arrow keys for moving the Input B ground level. Using the keys move the ground level. 3. Using set the Input A and B sensitivity to the first test point in Table 4-2. The corresponding range is shown in the second column of the table. 4. Set the 5500A to source the appropriate DC voltage. 5. Observe the main reading and check to see if it is within the range shown under the appropriate column. 6. Continue through the test points. 7. When you are finished, set the 5500A to 0 (zero) Volt, and to Standby. 4-15

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Performance Verification
4.5 Input A and Input B Tests
4
4-15
•
Using
change the time base to select manual time base ranging, and lock
the time base on 10 ms/div.
•
Press
to open the SCOPE INPUTS menu.
•
Press
to open the SCOPE OPTIONS menu, and choose:
SCOPE MODE:
■
NORMAL | WAVEFORM MODE:
■
SMOOTH
•
Move the Input A and Input B ground level (indicated by zero icon
) to the
center grid line.
Proceed as follows:
Press
to enable the arrow keys for moving the Input A ground level.
Press
to enable the arrow keys for moving the Input B ground level.
Using the
keys move the ground level.
3.
Using
set the Input A and B sensitivity to the first test point in Table 4-2.
The corresponding range is shown in the second column of the table.
4.
Set the 5500A to source the appropriate DC voltage.
5.
Observe the main reading and check to see if it is within the range shown under the
appropriate column.
6.
Continue through the test points.
7.
When you are finished, set the 5500A to 0 (zero) Volt, and to Standby.