Revision 5.0
ST 800 Series HART/DE Option User’s Manual
Page 115
Glossary
AP
Absolute Pressure
AWG
American Wire Gauge
DE
Digital Enhanced Communications Mode
DP
Differential Pressure
d1
Inside diameter of pipe
d2
Orifice plate bore diameter at flowing temperature
do
Inside diameter of orifice
EMI
Electromagnetic Interference
FTA
Field Termination Assembly
GP
Gauge Pressure
HP
High Pressure (also, High Pressure side of a Differential Pressure Transmitter)
Hz
Hertz
inH
2
O
Inches of Water
LGP
In-Line Gauge Pressure
LP
Low Pressure (also, Low Pressure side of a Differential Pressure Transmitter)
LRL
Lower Range Limit
LRV
Lower Range Value
mAdc
Milliamperes Direct Current
mmHg
Millimeters of Mercury
mV
Millivolts
Nm
Newton
.
meters
NPT
National Pipe Thread
NVM
Non-Volatile Memory
P
Pressure
Pa
Measured static pressure in PV4 algorithm
Pc
Absolute critical pressure of the gas
Pd
Static pressure at downstream point
Pdp
Measured differential pressure in Pascals in PV4 algorithm
Pf
Absolute pressure of flowing gas
Pr
Reduced pressure
Pu
Static pressure at upstream point
PM
Process Manger
PSI
Pounds per Square Inch
PSIA
Pounds per Square Inch Absolute