Operating Instructions

Table Of Contents
List of abbreviations
D
D.1 List of abbreviations
Short form Long form Description Units
A/D Analog to digital
CE / FM / CSA Conformité Européene / Factory Mutu‐
al / Canadian Standards Association
safety approval
C
i
Internal capacitance F
D/A Dialog to analog
DAC Digital Analog Converter
DCS Distributed Control System control room apparatus
dK dielectric constant
ESD Electrostatic Discharge
HART Highway Addressable Remote Trans‐
ducer
I
i
Input current mA
I
o
Output current mA
IS Intrinsically Safe safety approval
L
i
Internal inductance mH
mH milliHenry 10
-3
H
μF microFarad 10
-6
F
μs microsecond 10
-6
s
NPS Nominal Pipe Size
PED Pressure Equipment Directive safety approval
pF pico Farads 10
-12
F
ppm parts per million
PV Primary Variable measured value
SV Secondary Variable equivalent value
TVT Time Varying Threshold sensitivity threshold
U
i
Input voltage V
U
o
Output voltage V
SITRANS LR260 with mA/HART
Operating Instructions, 11/2019, A5E32337683-AD 171