External Trigger Level Test - Fluke ScopeMeter 190 II Series Service Manual

Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual

External Trigger Level Test

The external trigger level test is for the models 190-062,
190-102, 190-202, and 190-502.
To test the external trigger level:
1. Connect the Test Tool to the 5502A as shown in Figure 4-13.
METER
A
2 CHANN. + METER
2. Reset the Test Tool to select the Test Tool setup.
3. Press
4. Use
5. Select
6. Press
7. Select
Off
8. Use
9. Use
10. Use
11. Set the 5502A to source 0.4 V dc.
12. Verify that no trace is shown on the Test Tool display and that the status line
at the display top shows
If the display shows the trace and status as
re-arm the Test Tool for a trigger.
13. Set the 5502A to source 1.7 V.
14. To verify that the Test Tool is triggered, check that the trace becomes visible.
To repeat the test, start at step 3.
15. Set the 5502A to Standby.
4-34
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USE STACKABLE TEST LEADS
AS SUPPLIED WITH CALIBRATOR
B
NORMAL
FLUKE 5502A CALIBRATOR
Figure 4-13. Test Tool Meter/Ext Input to 5502A Normal Output
TRIGGER .
F4
to select the
TRIGGER OPTIONS...
from the
On Edges... TRIGGER OPTIONS
ENTER .
ENTER
Update: Single Shot
.
ENTER
F1 (
EDGE TRIG) to
F2 ( select positive slope triggering (trigger icon
SLOPE) to
F3 ( select
Ext LEVEL) to
SINGLE MANUAL or SINGLE WAITING
Note
SCOPE
menu.
menu.
,
Trigger Filter: Noise Reject
select .
Ext
.
1.2 V
SINGLE HOLD
perf-ver-x2.eps
ENTER ,
NCycle:
).
.
HOLD
RUN
, press to