
Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual
5-22
Input Pos ABCD (AB) Calibration
To do the Input Pos AB calibration:
1. Press
F2
to select calibration adjustment step CL 0619.
2. Remove all Input A, B connections (Calibrator STBY).
3. Press
F3
to start the calibration.
4. Wait until the display shows calibration status
:READY
.
5. Continue at the
Input ABCD (AB) NoiseF FBW Calibration
section
.
Input ABCD (AB) Noise F FBW Calibration
To do the Input AB NoiseF FBW Calibration:
1. Press
F2
to select calibration adjustment step CL 0850.
2. Connect 50
Ω
feed through terminations to all BNC Inputs A, B, (C, and D).
3. Press
F3
to start the calibration.
4. Wait until the display shows calibration status
:READY
.
5. Continue at the
Input AB Volt Gain
section.
Input AB Volt Gain
Warning
To prevent possible electrical shock, fire, or personal injury,
ensure that the calibrator is in standby mode before making any
connection between the calibrator and the Test Tool.
Dangerous voltages are present on the calibration source and
connection cables during these steps.
To do the Input AB Volt Gain calibration:
1. Press
F2
to select the first calibration step in Table 5-6.
2. Connect Ch. A and B of the Test Tool to the 5502A NORMAL output as
shown in Figure 5-8.
NORMAL
SCOPE
FLUKE 5502A CALIBRATOR
PM9091
PM9081
CONNECT TO CHANNEL A, B, C, D IN PARALLEL
50 OHM TERMINATION
NO
A
D
C
B
PM9093
PM9092
A
B
METER
P
M
9
0
9
3
PM9092
2 CHANN. + METER
4 CHANNELS
Perf-Ver-B2.eps
Figure 5-8. Test Tool Input AB to 5502A Normal Output
3. Set the 5502A to supply a DC voltage (NORMAL output), to the first
calibration point in Table 5-6.
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