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Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual
Input B Trigger Sensitivity Test
Proceed as follows to test the Input B trigger sensitivity:
1. Connect the Test Tool to the 5502A as shown in Figure 4-8.
PM9091
PM9091
50 OHM e.g. PM9585 or
TRM50
50 OHM e.g. PM9585 or
TRM50
For 190-502 and -504
use only TRM50!
A
METER
USE 50 OHM
TERMINATION
B
B
A
C
D
4 CHANNELS
2 CHANN. + METER
NORMAL
SCOPE
FLUKE 5502A CALIBRATOR
perf-ver-e2.eps
Figure 4-8. 5502A Scope Output to Test Tool Input B
2. Reset the Test Tool to select the Test Tool setup:
B
3. Press
4. Press
to turn Input B on.
TRIGGER
mV
and use
F1
to select Input B as trigger source.
RANGE
5. Use RANGE and V to change the sensitivity range to select manual
sensitivity ranging, and lock the Input B sensitivity range on 2 V/div.
6. Use
s
TIME
ns
to select the time base listed in Table 4-11.
7. Set the 5502A to source the leveled sine wave given in the first row of
Table 4-10.
8. Adjust the 5502A output voltage until the displayed trace has the amplitude
indicated under the appropriate column of Table 4-11.
9. Verify that the signal is well triggered.
to enable
for manual Trigger
If not, press TRIGGER and use F3
Level adjustment. Adjust the trigger level and verify that the signal will be
triggered now. The trigger icon ( ) indicates the trigger level.
10. Continue through the test points.
11. When you are finished, set the 5502A to Standby.
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