Fluke 43B - Page 60

43B
Service Manual
4-8
3. Select the following test tool setup:
• Press
to select menu SCOPE SETUP.
• Press to highlight Input 1 coupling.
• Press
to select the Input 1 coupling menu.
• Press
to highlight DC Coupling.
• Press
to confirm;  mark changes to ■
• Press
to highlight Input 1 Reading
• Press
to go to Input 1 READING.
• Press
to highlight Hz.
• Press
to confirm;  mark changes to ■.
• Press
to return to SCOPE.
4. Set the 5500A to source a leveled sine wave of 600 mV peak-to-peak (SCOPE
output, MODE levsine).
5. Set the 5500A frequency according to the first test point in Table 4-1.
6. Observe the Input 1 Reading on the test tool and check to see if it is within the range
shown under the appropriate column.
7. Continue through the test points.
8. When you are finished, set the 5500A to Standby.
Table 4-1. Input 1 Frequency Measurement Accuracy Test
5500A output, 600 mVpp Input 1 Reading
1 MHz 0.98 to 1.03 MHz
10 MHz 09.7 to 10.3 MHz
40 MHz 38.8 to 41.2 MHz
Note
Duty Cycle and Pulse Width measurements are based on the same
principles as Frequency measurements. Therefore the Duty Cycle and
Pulse Width measurement function will not be verified separately.