
v
"SGL" INSTRUCTION .......................................................................................................................................................16
"FULL" INSTRUCTION ....................................................................................................................................................... 16
Data Rate ........................................................................................................................................................... 17
“Open” Instruction ............................................................................................................................................ 17
Instruction ......................................................................................................................................................... 17
Programming Example ..................................................................................................................................... 17
8 - OPERATING PRINCIPLES.............................................................................................................. 19
Amperes Transducing ....................................................................................................................................... 19
Figure 14. 5300 Current Shunt Inputs .......................................................................................................... 19
Voltage Sensing ................................................................................................................................................ 19
Analog Processing ............................................................................................................................................ 19
Figure 15. 5300 Block Diagram ...................................................................................................................20
Digital Processing ............................................................................................................................................. 20
Display “Help” .................................................................................................................................................. 20
Polyphase Line Balance .................................................................................................................................... 20
9 - CALIBRATION ................................................................................................................................. 21
General .............................................................................................................................................................. 21
Figure 16. Calibration Verification Test Setup ............................................................................................21
Test Setup.......................................................................................................................................................... 21
Calibration Verification .................................................................................................................................... 22
VOLTS CALIBRATION CHECK F1 .......................................................................................................................................22
AMPERES CALIBRATION CHECK ........................................................................................................................................23
WATTS CALIBRATION CHECK ...........................................................................................................................................23
Minor Adjustment (If Needed) ......................................................................................................................... 23
Figure 17. Trimpot Adjustment Locations .................................................................................................... 24
VOLTS ZERO ................................................................................................................................................................... 24
AMPERES ZERO ............................................................................................................................................................... 24
VOLTS SCALE FACTOR ..................................................................................................................................................... 24
AMPERES SCALE FACTOR ................................................................................................................................................. 24
VOLTS BALANCE ............................................................................................................................................................. 25
CURRENT BALANCE ......................................................................................................................................................... 25
WATTS SCALE FACTOR ....................................................................................................................................................25
APPENDIX A: SCHEMATIC DRAWINGS ........................................................................................... 26
Circuit Board 78B128 - LED Display .............................................................................................................. 26
Circuit Board 78B145 - Digital Readout & MPU ............................................................................................ 27
Circuit Board 78B146 - Analog Input board .................................................................................................... 28
Circuit Board 78B147 - Converter Board ......................................................................................................... 29
Circuit Board 78B149 - Switchboard ............................................................................................................... 30
Circuit Board 78B153 - Switch Interface ......................................................................................................... 31
Circuit Board 78B154 - Counters Board .......................................................................................................... 32
Circuit Board 78B175 ....................................................................................................................................... 33
MAGTROL LIMITED WARRANTY ....................................................................................................... 34
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