Input B Frequency Measurement Accuracy Test - Fluke ScopeMeter 123 Service Manual

6. Continue through the test points.
7. When you are finished, set the 5500A to Standby.
Table 4-1. Input A,B Frequency Measurement Accuracy Test
5500A output, 600 mVpp
1 MHz
10 MHz
40 MHz
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.

4.5.5 Input B Frequency Measurement Accuracy Test

Proceed as follows to test the Input B frequency measurement accuracy:
1. Connect the test tool to the 5500A as shown in Figure 4-4.
Figure 4-4. Test Tool Input B to 5500A Scope Output 50Ω Ω Ω Ω
2. Select the following test tool setup:
•
Press
•
Press
INPUT B:
•
Press
•
Press
INPUT:
3. Set the 5500A to source a leveled sine wave of 600 mV peak-to-peak (SCOPE
output, MODE levsin).
select auto ranging (
to the INPUT B MEASUREMENTS menu, and choose:
open
I
ON | MEASURE on B:
to open the SCOPE INPUTS menu.
to open the TRIGGER menu, and choose:
I
B | SCREEN UPDATE:
Input A, B Reading
0.993 to 1.007 MHz
09.88 to 10.12 MHz
38.98 to 41.02 MHz
Note
in top of display).
AUTO
I
Hz
I
FREE RUN | AUTO RANGE:
Performance Verification
4.5 Input A and Input B Tests
ST8005.CGM
I
>15HZ
4
4-9