List of abbreviations
SITRANS SL
206 Operating Instructions, 12/2010, A5E01132948-04
Abbreviation / symbol Explanation
l/min Liters per minute
LAN Local Area Network
LCD Liquid crystal display
LD Laser diode
LDS Laser Diode Spectrometer
LDSComm Laser Diode Spectrometer Communication software
LED Light emitting diode
LUI Local User Interface
max. Maximum
mm Millimeter
mm² Square millimeters
MPa Megapascal
MPI Message passing Interface
MSB Most significant byte
n. B. As required
NAMUR Standards working committee for measuring and control
technology in the chemical industry.
NC Not connected
O
2
Oxygen
PA Process Automation
PC Personal Computer
PCB Printed Circuit Board
PCMCIA Personal Computer Memory Card International Association
PCS Process Control System
PDM Process Device Manager
PE Protective Earth (terminal)
PG Programming device
PI Process Interface
PLC Programmable Logic Controller
PN Pressure nominal
PROFIBUS Process Field Bus
QAL Quality Assurance Level
RAM Random Access Memory
RHU Receiver Housing Unit
RTU Receiver Tube Unit
Rx Receive (Rx) identifies a receiver
s Second
SELV Safety Extra Low Voltage
SM374 Simulation module 374
SMA Sub-Miniature A, a coaxial connector type
STP Screened twisted pair
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