Fluke 125B/S Calibration Guide - Page 35

Input A and B Phase Measurements Test, Harmonics Test (125B)

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Industrial ScopeMeter Performance Verification Input A and B Phase Measurements Test To test the Input A and B phase measurements: 1. Connect the Test Tool to the Calibrator. See Figure 6. 2. Set up the Test Tool: a. Push . b. Push  to open the INPUT A MEASUREMENTS menu. c. Select Phase. d. Push . e. Push . f. Push  to open the INPUT B MEASUREMENTS menu. g. Select Phase. h. Push . 3. Push  or  to set 1 V/div for Input A and Input B. 4. Set up the Calibrator: a. Supply a sine wave. b. Supply the voltage and frequency in Table 8 (NORMAL output, WAVE sine). c. Push . 5. Compare the Input A and Input B main reading to the limit in Table 8. Table 8. Volts Peak Verification Points 1.5 V Calibrator Output V rms (Sine Calibrator Frequency 1 kHz Limit A-B -2 degrees to +2 degrees Harmonics Test (125B) To test the harmonics: 1. Connect the Test Tool to the Calibrator. See Figure 6. 2. Setup the Test Tool: a. Push  to open MENU. b. Push  to highlight POWER HARMONICS. c. Push  to open the SETTINGS menu. d. Select Probe B: Select. e. Push . f. Select SENSITIVITY: 10 mV/A. 3. Set up the CalibratorCalibrator: a. Supply a square wave. b. Supply 2.5 Vpp, 60 Hz (NORMAL output, WAVE square). c. Push . 27

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Industrial ScopeMeter
Performance Verification
27
Input A and B Phase Measurements Test
To test the Input A and B phase measurements:
1.
Connect the Test Tool to the Calibrator. See Figure 6.
2.
Set up the Test Tool:
a.
Push
.
b.
Push
to open the INPUT A MEASUREMENTS menu.
c.
Select
Phase
.
d.
Push
.
e.
Push
.
f.
Push
to open the INPUT B MEASUREMENTS menu.
g.
Select
Phase
.
h.
Push
.
3.
Push
or
to set 1 V/div for Input A and Input B.
4.
Set up the Calibrator:
a.
Supply a sine wave.
b.
Supply the voltage and frequency in Table 8 (NORMAL output, WAVE sine).
c.
Push
.
5.
Compare the Input A and Input B main reading to the limit in Table 8.
Harmonics Test (125B)
To test the harmonics:
1.
Connect the Test Tool to the Calibrator. See Figure 6.
2.
Setup the Test Tool:
a.
Push
to open MENU.
b.
Push

to highlight POWER HARMONICS.
c.
Push
to open the SETTINGS menu.
d.
Select
Probe B: Select
.
e.
Push
.
f.
Select
SENSITIVITY: 10 mV/A
.
3.
Set up the CalibratorCalibrator:
a.
Supply a square wave.
b.
Supply 2.5 Vpp, 60 Hz (NORMAL output, WAVE square).
c.
Push
.
Table 8. Volts Peak Verification Points
Calibrator Output
V rms (Sine
Calibrator Frequency
Limit A-B
1.5 V
1 kHz
-2 degrees to +2 degrees