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ML0039 November 14, 2013 Copyright 2013 Bitronics, LLC
4.1 Serial Port.............................................................................................................................................32
4.1.1 RS485 Connections.......................................................................................................................32
5.0 FUNCTIONAL DESCRIPTION..............................................................................................................35
5.1 Configuration .........................................................................................................................................35
5.2 HTML Web Server................................................................................................................................ 35
5.3 Passwords ............................................................................................................................................. 35
5.4 Using the M651 with a Bitronics Analog Output Converter ..................................................................35
5.5 Performing set-up through the web page interface ..............................................................................37
6.0 MEASUREMENTS................................................................................................................................. 51
6.1 Changing Transformer Ratios...............................................................................................................51
6.2 Current.................................................................................................................................................. 51
6.2.1 Residual Current............................................................................................................................51
6.3 Voltage Channels .................................................................................................................................52
6.4 Voltage Aux .......................................................................................................................................... 52
6.5 Power Factor ........................................................................................................................................ 52
6.6 Watts / Volt-Amperes (VAs) / VARs (Uncompensated)........................................................................52
6.6.1 Geometric VA Calculations ...........................................................................................................53
6.7 Compensated Watts and VARs (Line and Transformer Loss Compensation).....................................55
6.8 Energy...................................................................................................................................................56
6.9 Frequency............................................................................................................................................. 57
6.10 Demand Measurements .....................................................................................................................57
6.10.1 Ampere and Fundamental Ampere Demand ..............................................................................58
6.10.2 Volt Demand................................................................................................................................58
6.10.3 Power Demands (Total Watts, VARs, and VAs).........................................................................58
6.10.4 Demand Resets...........................................................................................................................59
6.10.5 Demand Interval..........................................................................................................................59
6.11 Harmonic Measurements....................................................................................................................59
6.11.1 Voltage Distortion (THD) .............................................................................................................59
6.11.2 Current Distortion (THD and TDD)..............................................................................................59
6.11.3 Fundamental Current ..................................................................................................................60
6.11.4 Fundamental Voltage ..................................................................................................................61
6.11.5 K-Factor.......................................................................................................................................61
6.11.6 Displacement Power Factor........................................................................................................61
6.11.7 Phase Angles ..............................................................................................................................62
6.12 Heartbeat and Health Check .............................................................................................................. 62
6.13 List of Available Measurements & Settings........................................................................................63
6.14 Calibration...........................................................................................................................................63
6.15 Instantaneous Measurement Principles .............................................................................................64
6.15.1 Sampling Rate and System Frequency.......................................................................................64
7.0 ANALOG TRANSDUCER OUTPUT OPTION....................................................................................... 65
7.1 Introduction...........................................................................................................................................65
7.2 Specifications........................................................................................................................................65
7.3 Connections.......................................................................................................................................... 65
APPENDIX.................................................................................................................................................... 68
A1 CT/VT Connection Diagrams ................................................................................................................ 68
A2 Ethernet Troubleshooting......................................................................................................................73
