Fluke 190-104 Service Manual page 25

•
Recall the created setup (e.g. SETUP 1, see section 4.4.3): press
, select
RECALL
A
•
Press
Normal | Bandwidth: 20 kHz (HF reject)
B
•
Press
Normal | Bandwidth: 20 kHz (HF reject)
C
•
Press
Normal | Bandwidth: 20 kHz (HF reject)
D
•
Press
Normal | Bandwidth: 20 kHz (HF reject)
•
Press CLEAR to clear the softkey menu, and to see the full screen.
The 20 kHz bandwidth limiter rejects calibrator noise. It does not affect the gain
accuracy at a 50 Hz input signal
s TIME ns
3. Using change the time base to select manual time base ranging, and lock
the time base on 10 ms/div.
A
4. Press : Using
the zero icon in the left margin) to the center grid line.
mV RANGE
5. Using and
RANGE
4-1.
6. Set the 5500A to source the appropriate initial ac voltage.
7. Adjust the 5500A output voltage until the displayed Input A trace amplitude is 6
divisions.
8. Observe the 5500A output voltage and check to see if it is within the range shown
under the appropriate column.
9. Continue through the test points.
10. Next check channel B, C or D in succession:
Connect channel B, C or D input to 5500A,
Press TRIGGER and select B, C or D as trigger source with
Press B, C or D to assign vertical range and move to channel B, C or D,
Observe the 5500A output voltage and check to see if it is within range.
11. When you are finished, set the 5500A to 0 (zero) Volt, and to Standby.
SCREEN+SETUP 1
F4
, press
INPUT A OPTIONS...
F4
, press
INPUT B OPTIONS...
F4
, press
INPUT C OPTIONS...
F4
, press
INPUT D OPTIONS...
MOVE
and move the Input A ground level (indicated by
MOVE
set the Input A sensitivity range to the first test point in Table
V
4.6 Scope Input A, B, C, D Tests
, press ENTER to recall the setup.
, and select
, and select
, and select
, and select
Note:
F1
Performance Verification
SAVE
F2
,
Polarity
Polarity
Polarity
Polarity
,
4
4-7