Page 276 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
mmmmm
List of Abbreviations
NEMA National Electrical Manufacturer’s Association
PDM Process Device Manager
PLC Programmable Logic Controller
PV Primary Variable measured value
RC Resistance Capacitance
resistance x
capacitance
μs
SCADA
Supervisory Control and Data
Acquisition
SCR Silicon-controlled rectifier switching device
SPDT Single Pole Double Throw relay configuration
SPST Single Pole Single Throw relay configuration
SV Secondary Variable equivalent value
TVT Time Varying Threshold sensitivity threshold
USB Universal Serial Bus
VSDs Variable Speed Drives
Short form Long Form Description Units
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