Input A&B / C&D Phase Measurements Test - Fluke ScopeMeter 190 II Series Service Manual

7. Continue through the test points.
8. When you are finished, set the 5502A to 0 (zero) Volt and Standby.
Table 4-7. Input A, B, C, D Frequency Measurement Accuracy Test
Model Time base 5502A-SC... MODE
All 20 ms/div wavegen, sine
190-062 20 ns/div levsine
190-104
20 ns/div levsine
190-102
190-204
20 ns/div levsine
190-202
190-502
20 ns/div levsine
190-504
Because Duty Cycle and Pulse Width measurements are
based on the same principles as Frequency measurements,
these measurement functions will not be verified separately.
Input A&B / C&D Phase Measurements Test
The test steps for channel C and D are only for the models
190-104, 190-204, and 190-504.
Proceed as follows to test the phase measurement accuracy:
1. Connect the Test Tool to the 5502A as shown in Figure 4-5.
2. Select the Test Tool setup:
d) Recall the created setup (see Standard Test Tool Setup). Press
F2
(
RECALL) and
and press
e) Press
SCOPE
f) Press F2
and
Reading 1, on A, Phase
Reading 2, on B, Phase
Reading 3, on C, Phase
Reading 4, on D, Phase
mV
3. Use and
RANGE
s TIME ns
4. Use
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Voltage
600 mVpp
600 mVpp
600 mVpp
600 mVpp
600 mVpp
Note
Note
select
SETUP
to recall the setup.
ENTER
.
(– ...) and select with
READING
:
RANGE
to select range 100 mV/div for A, B, C and D.
V
to select the required time base setting.
Performance Verification
Scope Input A, B, C, D Tests
Input A, B
Frequency
Reading
16 Hz 15.90 to 16.10
60 MHz 59.68 to 60.32
100 MHz 99.3 to 100.7
200 MHz 198.8 to 201.2
500 MHz 497.3 to 502.7
, press ENTER , select the setup name,
F1 (–
READINGS)
4
SAVE
,
4-19