Input A, B, C, D Peak Measurements Test - Fluke ScopeMeter 190 II Series Service Manual

Input A, B, C, D Peak Measurements Test

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.
The test steps for channel C and D are only for the models
190-104, 190-204, and 190-504.
To test the peak measurement accuracy:
1. Connect the Test Tool to the 5502A as shown Figure 4-4.
2. Select the Test Tool setup:
a) Recall the setup (see Standard Test Tool Setup). Press
(
RECALL) and
press ENTER
b) Press
SCOPE
F2
c) Press
and with
Reading 1, on A, Peak
Reading 2, on B, Peak
Reading 3, on C, Peak
Reading 4, on D, Peak
d) Press CLEAR
s TIME ns
3. Use
mV
4. Use and
RANGE
100 mV.
5. Set the 5502A to source the appropriate ac voltage and frequency as listed in
Table 4-6.
6. Observe readings
shown under the appropriate column.
7. When you are finished, set the 5502A to 0 (zero) Volt and Standby.
Table 4-6. Volts Peak Measurement Verification Points
5502A output, Vrms (sine)
212.13 mV (0.6 V pp)
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 Warning
Note
select , press
ENTER
SETUP
to recall the setup.
.
(– ...) and select with
READING
:
... and next
Peak-Peak
... and next
Peak-Peak
... and next
Peak-Peak
... and next
Peak-Peak
to clear the softkey menu, and to see the full display.
to change the time base and lock the time base on 1 ms/div.
RANGE
to set the Input A, B, C, and D sensitivity ranges to
V
and and check that they are within the range
A, B, C, D
5502A Frequency
1 kHz
Performance Verification
Scope Input A, B, C, D Tests
SAVE
F2
,
, select the setup name, and
F1
(–
READINGS)
Reading A, B
0.56 to 0.64
4
4-17