Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual
4-34
External Trigger Level Test
Note
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.
NORMAL SCOPE
FLUKE 5502A CALIBRATOR
AB
METER
2 CHANN. + METER
USE STACKABLE TEST LEADS
AS SUPPLIED WITH CALIBRATOR
perf-ver-x2.eps
Figure 4-13. Test Tool Meter/Ext Input to 5502A Normal Output
2. Reset the Test Tool to select the Test Tool setup.
3. Press
TRIGGER
.
4. Use
F4
to select the TRIGGER OPTIONS... menu.
5. Select
On Edges... from the TRIGGER OPTIONS menu.
6. Press
ENTER
.
7. Select
Update: Single Shot
ENTER
, Trigger Filter: Noise Reject
ENTER
, NCycle:
Off
ENTER
.
8. Use
F1
(EDGE TRIG) to select Ext.
9. Use
F2
(SLOPE) to select positive slope triggering (trigger icon ).
10. Use
F3
(Ext LEVEL) to select 1.2 V.
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
SINGLE MANUAL or SINGLE WAITING.
If the display shows the trace and status as
SINGLE HOLD, press
HOLD
RUN
to
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.
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