Fluke ScopeMeter 123, Service Manual, Page: 50 / 96

Fluke 123/124/125
Service Manual
3-20
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 3-4. 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
3.5.12 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 3-5).
2. Select the following test tool setup:
•
Fluke 123/124: press / to open the SCOPE INPUTS menu.
•
Fluke 123/124: press to open the TRIGGER menu, and choose:
INPUT: A | SCREEN UPDATE: FREE RUN | AUTO RANGE: > 15Hz
•
Fluke 125: press to open MENU.
•
Fluke 125: press to open the TRIGGER menu, and choose :
INPUT: A | 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
From the INPUT B PEAK sub-menu choose: