Meggitt vibro-meter VM600 - APPENDIX D: ABBREVIATIONS AND SYMBOLS

Document reference MAMPS-HW/E HARDWARE MANUAL
Edition 18 - March 2022 VM600 machinery protection system (MPS)
D-1
ABBREVIATIONS AND SYMBOLS
APPENDIX D: ABBREVIATIONS AND SYMBOLS
This appendix defines the abbreviations and symbols used in this manual as well as in
associated Meggitt vibro-meter
®
documentation.
Only the basic measurement unit symbols are listed here (for example, Hz, V, W). Units
combined with metric prefixes (such as micro-, milli- and kilo-) have not been included.
Table D-1: Abbreviations and symbols
Abbreviation Definition
A Ampere (unit of electric current)
AB Absolute bearing vibration (= MPS processing function)
ABE04x
VM600 system rack (19" 6U racks, including the ABE040 and ABE042,
from the Meggitt vibro-meter
®
product line)
ABE056
VM600 slimline rack (19" 1U rack from the Meggitt vibro-meter
®
product
line)
AC Alternating current
ADC Analog-to-digital converter
AMC Analog monitoring card (AMC8)
ANSI American national standards institute
API American petroleum institute (standards organisation)
AR Alarm Reset
AS Absolute shaft / shaft absolute vibration (= MPS processing function)
ASPS Auxiliary sensor power supply
ATEX
ATEX Directive (94/9/EC) concerning the use of equipment in potentially
explosive atmospheres (from the French term ATmosphères EXplosibles)
AVG Average
BBAB
Broad-band absolute bearing vibration
* (= MPS processing function)
BBP Broad-band pressure (= MPS processing function)
BIST Built-in self test
BIT Built-in test
BITE Built-in test equipment
BP Band pass (filter)
BW Bandwidth
C Coulomb (unit of electric charge)
CJ Cold junction
CJC Cold-junction compensation