Fluke 52120A - Calibration

5-1
Chapter 5
Calibration
Title Page
Introduction .......................................................................................................... 5-3
Calibration Correction Factors ........................................................................ 5-3
Equipment Required ........................................................................................ 5-3
Initial Setup and Input Zero Adjustments ........................................................ 5-3
Calibration Verification – Standalone Mode ................................................... 5-5
Equipment Setup ......................................................................................... 5-7
2 Amp Range Verification .......................................................................... 5-7
20 Amp Range Verification ........................................................................ 5-9
120 Amp Range Verification ...................................................................... 5-11
Current Input Burden Resistor Verification ................................................ 5-13
Amplitude Specification Limits, Pass/Fail Analysis ....................................... 5-13
Calibration Adjustment – Standalone Mode ................................................... 5-14
Equipment Set Up ....................................................................................... 5-14
How to Correct for Shunt Resistance Error ................................................ 5-16
Adjustment Process ..................................................................................... 5-16
Adjustments Notes ...................................................................................... 5-16
Adjustments ................................................................................................ 5-16
Calibration Verification – Closed-Loop with 6100A or 6105A ...................... 5-22
Test Equipment ........................................................................................... 5-22
Power Line Frequency Confidence Check .................................................. 5-22
Phase Angle Accuracy Confidence Check .................................................. 5-23
Verify Amplitudes at DC and Higher Frequencies ..................................... 5-23
Verify Phase Angles at Higher Frequencies ............................................... 5-26