ML0021 August 15, 2018
ii Copyright 2018 Bitronics, LLC
TABLE OF CONTENTS
FIRMWARE VERSION ..................................................................................................................................... vii
M87x MANUAL SET ......................................................................................................................................... ix
INSTALLATION AND MAINTENANCE ............................................................................................................. x
WARRANTY AND ASSISTANCE ...................................................................................................................... x
AUTHORIZED REPRESENTATIVE IN THE EUROPEAN UNION .................................................................. xi
COPYRIGHT NOTICE ....................................................................................................................................... xi
TRADEMARKS ................................................................................................................................................. xi
SAFETY SECTION .......................................................................................................................................... xiii
1.0 DESCRIPTION ............................................................................................................................................ 1
1.1 Introduction .............................................................................................................................................. 1
1.2 Features .................................................................................................................................................. 1
1.3 Specifications .......................................................................................................................................... 1
1.4 Standards and Certifications ................................................................................................................. 10
1.4.1 Revenue Accuracy ......................................................................................................................... 10
1.4.2 Environment ................................................................................................................................... 10
2.0 HOUSING AND BACKPLANE ................................................................................................................. 15
2.1 Installation ............................................................................................................................................. 18
2.2 Initial Inspection ..................................................................................................................................... 18
2.3 Protective Ground/Earth Connections................................................................................................... 18
2.4 Instrument Mounting.............................................................................................................................. 18
2.5 Surge Protection .................................................................................................................................... 18
2.6 Cleaning ................................................................................................................................................ 18
2.7 Removal and Installation of Modules .................................................................................................... 19
3.0 HOST / ANALOG-DIGITAL SIGNAL PROCESSOR MODULE H11/H12 AND A10 ............................... 20
3.1 Host board ............................................................................................................................................. 20
3.1.1 Serial Port/Front Panel Board ........................................................................................................ 20
3.1.1a Service Port (P1) ..................................................................................................................... 20
3.1.1b Standard Serial Ports (P2, P3, P4) .......................................................................................... 21
3.1.1c Diagnostic Status LED’s (S1, S2, S3, S4) ............................................................................... 22
3.1.1d RS485 C onnections ................................................................................................................. 22
3.1.2 Self-Test Modes ............................................................................................................................. 31
3.1.3 System Clock ................................................................................................................................. 32
3.2 A10 Analog-Digital Signal Processor Board ......................................................................................... 32
3.2.1 Calibration ...................................................................................................................................... 32
3.2.2 Instantaneous Measurement Principles ......................................................................................... 32
3.2.2a Sampling Rate and System Frequency ................................................................................... 32
4.0 MEASUREMENTS .................................................................................................................................... 33
4.1 Current (1/4-Cycle Update) ................................................................................................................... 33
4.1.1 Neutral and Residual Current (1/4-Cycle Update) ......................................................................... 33
4.2 Voltage Channels (1/4-Cycle Update) ................................................................................................... 33
4.3 Power Factor (1-Cycle Update) ............................................................................................................. 34
4.4 Watts / Volt-Amperes (VAs) / VARs (1-Cycle Update) .......................................................................... 34
4.4.1 Geometric VA Calculations ............................................................................................................ 35
4.4.2 Arithmetic VA Calculations ............................................................................................................. 35
4.4.3 Equivalent VA Calculations ............................................................................................................ 36
To Next Page
Loading...
