7-2 | Model 900 ADA and Model 930 Sulfur Pit Analyzers
Abbreviations and Terms Used in This Manual
Abbreviation Full Term / Description
ADA Air Demand Analyzer
ADC analog-to-digital converter
A/D analog-to-digital
ASR Advanced Sulfur Reduction
Chopper Wheel Filter Wheel
D/A digital-to-analog
DAS Data Acquisition System
DCS Distributed Control System
Documentation Package Manuals and supplemental information for the system, shipped
with the analyzer.
DP dierential pressure
EEPROM electrical-erasable-programmable-read-only memory
GP General Purpose analyzers
HAI Host Controller Analog Input
MAI Microcontroller Analog Input
Modbus
®
Communication protocol
PD Purgeable Deluxe analyzers (General Purpose and Division 2)
PID proportional, integral, dierential
PMT photomultiplier tube
RTD resistance temperature device
SPDT single pole double throw
SRAM static random access memory
SSR solid-state relay
SKO sulfur knock out (sulfur condenser)
XP Explosion-proof