Fluke A40B Instruction Manual page 4

A40B
Instruction Manual
Output Voltage Measurement - Loading Effect ................................. 15
Output Voltage Measurement Using a Fluke Calibration 5790A ....... 16
Output Voltage Measurement Using a Fluke Calibration 8508A ....... 17
Operating Instructions ........................................................................... 18
Introduction ........................................................................................ 18
Measuring Current ............................................................................. 18
Direct Read-out When Measuring Current ........................................ 20
Theory of Operation .............................................................................. 20
Coaxial Shunts .................................................................................. 21
Boxed Shunts .................................................................................... 22
Introduction ........................................................................................ 22
An Overview of Calibration Methods ................................................. 22
Potential Voltage Measurement Devices ....................................... 23
DC Considerations ........................................................................ 24
AC Considerations ......................................................................... 25
The Fluke Calibration Method ........................................................... 26
Recommended Tools and Equipment ........................................... 27
System Calibration for AC-DC Difference ..................................... 27
TVC Sensitivity Characterization ................................................... 28
UUT AC-DC Difference Measurement Sequence and
Calculations ................................................................................... 29
Current Source DC Noise .............................................................. 30
UUT DC Resistance Measurement ............................................... 30
Repair Procedures Including Disassembly and Reassembly ................ 31
Repair Limits ...................................................................................... 31
List of Tools Required for Repair ....................................................... 32
End Plates and Guard Binding Post Replacement (Coaxial Shunts) 32
Input N-type Connector Replacement (Coaxial Shunts) .................... 33
Output N-Type Connector Replacement (Coaxial Shunts) ................ 35
Verification of Operation after Repair ................................................ 35
List of Replaceable Parts ...................................................................... 36
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