Spectrex Quasar 900 Open-Path Gas Detection System - Manual (Page 6)

SafEye TM Quasar 900 Gas Detector
vi Abbreviations and Acronyms
Abbreviations and Acronyms
Abbreviation Meaning
ATEX Atmosphere Explosives
AWG American Wire Gauge
BIT Built In Test
EMC Electromagnetic Compatibility
EOL End of Line
FOV Field of View
HART Highway Addressable Remote Transducer-
communication protocol
IAD Immune at Any Distance
IECEx International Electrotechnical Commission Explosion
IPA Isopropyl Alcohol
IR Infrared
JP5 Jet Fuel
Latching Refers to relays remaining in the ON state even after
the ON condition has been removed
LED Light Emitting Diode
LPG Liquefied Petroleum Gas
mA MilliAmps (0.001 amps)
MODBUS Master-slave messaging structure
N.C. Normally Closed
N.O. Normally Open
N/A Not Applicable
NFPA National Fire Protection Association
NPT National Pipe Thread
SIL Safety Integrity Level
UNC Unified Coarse Thread
VAC Volts Alternating Current