AEMC PowerPad 3945-B User Manual page 8

7. MAINTENANCE ................................................................................ 90
7.1 Recharging the Battery ......................................................................90
7.2 Battery Replacement..........................................................................90
7.2 Cleaning .............................................................................................91
APPENDIX A: MATHEMATICAL FORMULAS .......................................... 92
Half-period Voltage and Current RMS Values .............................................92
MIN / MAX Values for Voltage and Current .................................................93
Peak Values for Voltage and Current ..........................................................93
Peak Factors for Current and Voltage .........................................................93
1 sec RMS Values for Voltage and Current .................................................94
Voltage and Current Unbalance ..................................................................94
THD Calculation ..........................................................................................94
Calculation of Harmonic Bins ......................................................................95
Distortion Factor Calculation (DF) ...............................................................95
K Factor .......................................................................................................96
Different Power Levels 1 Sec ......................................................................96
Ratios ..........................................................................................................97
Various Types of Energy .............................................................................97
Hysteresis ....................................................................................................99
APPENDIX B: GLOSSARY ................................................................... 100
Repair and Calibration ..................................................................... 103
Technical and Sales Assistance ....................................................... 103
Limited Warranty ............................................................................. 104
Warranty Repairs ............................................................................. 104
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Power Quality Analyzer Model 3945-B