Front Panel Operation
Sample Applications
4
4-71
4-65. Testing Harmonics Amps Performance
1. Press the VAW button on the Tester until A is displayed above the upper right corner
of the harmonics display.
2. Press the VAφ REF button on the Tester until Vφ is displayed in the top status line.
3. Press the SMOOTH button on the Tester until ~20s is displayed in the top status line
of the Tester.
4. Connect the calibrator NORMAL output to the V and COM connectors on the
Tester.
5. Connect the calibrator AUX output to the Current Probe connector on the Tester.
6. Set the calibrator output to 7.0 V at 60 Hz on the NORMAL output and 20 mV at 60
Hz on the AUX output. Press the WAVE MENUS, then the φ & REF MENUS
softkey and ensure the phase angle is 10.00 degrees. Press the HARMONIC MENU
softkey and ensure the HARMONIC selection is set to “1” and the FUNDMTL
selection is set to “normal.” Press O.
7. Verify that the harmonic amplitude and phase angle readings displayed by the Tester
are within the minimum and maximum limits listed in Table 4-5.
Table 4-5. Harmonics Performance for Amps, Harmonics screen
5520A AUX Output Fluke Tester Performance Limits
Amplitude Harmonic Phase
Harmonic
cursor Amplitude Phase
(mV) No. (deg.) No. MIN MAX MIN MAX
20.0 1 10 1 19.1 20.9 8 12
20.0 3 20 3 19.1 20.9 14 26
20.0 9 30 9 19.1 20.9 21 39
20.0 13 40 13 19.1 20.9 29 51
20.0 21 50 21 18.7 21.3 35 65
20.0 31 60 31 18.1 21.9 40 80
4-66. Calibrating a Fluke 51 Thermometer
The Fluke 51 Thermometer measures temperature using a type J or K thermocouple. The
calibrator simulates both thermocouples, simplifying testing and calibration. The
following demonstrates how the calibrator is used to calibrate this thermometer.
Note
These procedures are included here as an example. The Model 51 Service
Manual contains the authoritative testing and calibration procedures.
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