Fluke 123B/S Service Manual - Page 76

Input A and B Volts Peak Measurements Test

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123/124 Service Manual • Press to open the SCOPE INPUTS menu, and choose: INPUT A: I AC | I NORMAL | INPUT B: I AC | NORMALI • Press to open the SCOPE INPUTS menu. • Press to open the TRIGGER menu, and choose: INPUT: A | SCREEN UPDATE: I FREE RUN | AUTO RANGE: I > 1HZ 3. Set the 5500A to source an AC voltage, to the first test point in Table 4-4 (NORMAL output, WAVE sine). 4. Observe the Input A and Input B main reading and check to see if it is within the range shown under the appropriate column. 5. Continue through the test points. 6. When you are finished, set the 5500A to Standby. Table 4-4. Input A and B AC Input Coupling Verification Points 5500A output, V rms 5500A Frequency Reading A-B 500.0 mV 500.0 mV 500.0 mV 10 Hz 33 Hz 60 Hz > 344.0 > 469.0 > 486.5 4.5.12 Input A and B Volts Peak Measurements Test WARNING Dangerous voltages will be present on the calibration source and connecting cables during the following steps. Ensure that the calibrator is in standby mode before making any connection between the calibrator and the test tool. Proceed as follows to test the Volts Peak measurement function: 1. Connect the test tool to the 5500A as for the previous test (see Figure 4-5). 2. Select the following test tool setup: • Press • Press to open the SCOPE INPUTS menu. to open the TRIGGER menu, and choose: INPUT: A | SCREEN UPDATE: I FREE RUN | AUTO RANGE: I > 15HZ • Press to select auto ranging (AUTO in top of display). • Press to open the INPUT A MEASUREMENTS menu, and choose: MEASURE on A: I PEAK From the INPUT A PEAK sub-menu choose: PEAK TYPE : I PEAK-PEAK • Press to open the INPUT B MEASUREMENTS menu, and choose: INPUT B: I ON | MEASURE on B: I PEAK 4-18

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123/124
Service Manual
4-18
•
Press
to open the SCOPE INPUTS menu, and choose:
INPUT A:
■
AC |
■
NORMAL | INPUT B:
■
AC | NORMAL
■
•
Press
to open the SCOPE INPUTS menu.
•
Press
to open the TRIGGER menu, and choose:
INPUT: A | SCREEN UPDATE:
■
FREE RUN | AUTO RANGE:
■
> 1HZ
3.
Set the 5500A to source an AC voltage, to the first test point in Table 4-4
(NORMAL output, WAVE sine).
4.
Observe the Input A and Input B main reading and check to see if it is within the
range shown under the appropriate column.
5.
Continue through the test points.
6.
When you are finished, set the 5500A to Standby.
Table 4-4. Input A and B AC Input Coupling Verification Points
5500A output, V rms
5500A Frequency
Reading A-B
500.0 mV
10 Hz
> 344.0
500.0 mV
33 Hz
> 469.0
500.0 mV
60 Hz
> 486.5
4.5.12 Input A and B Volts Peak Measurements Test
WARNING
Dangerous voltages will be present on the calibration source
and connecting cables during the following steps.
Ensure that
the calibrator is in standby mode before making any connection
between the calibrator and the test tool.
Proceed as follows to test the Volts Peak measurement function:
1.
Connect the test tool to the 5500A as for the previous test (see Figure 4-5).
2.
Select the following test tool setup:
•
Press
to open the SCOPE INPUTS menu.
•
Press
to open the TRIGGER menu, and choose:
INPUT: A | SCREEN UPDATE:
■
FREE RUN | AUTO RANGE:
■
> 15HZ
•
Press
to select auto ranging (
AUTO
in top of display).
•
Press
to open the INPUT A MEASUREMENTS menu, and choose:
MEASURE on A:
■
PEAK
From the INPUT A PEAK sub-menu choose:
PEAK TYPE :
■
PEAK-PEAK
•
Press
to open the INPUT B MEASUREMENTS menu, and choose:
INPUT B:
■
ON | MEASURE on B:
■
PEAK