Siemens SITRANS LR200 Instruction Manual page 9

Short
Long Form
form
FV Full Vacuum
ESD Electrostatic Discharge
I Input current
i
I Output current
o
IS Intrinsically Safe
L Internal inductance
i
LR Level Radar
LTB Level Transducer Block
mH milliHenry
µF microFarad
µs microsecond
Process Automation
PA
(PROFIBUS)
Process Device Manager
PDM
(SIMATIC)
Pressure Equipment
PED
Directive
pF pico Farads
ppm parts per million
PV Primary Value
SELV Safety extra low voltage
SV Secondary Value
TB Transducer Block
TV Transmitter Variable
TVT Time Varying Threshold
U Input voltage
i
U Output voltage
o
1.
The output from the Level Transducer Block can be called the Primary Value (or
Secondary Value). When it becomes the input to the AIFB, it is called the
Process Variable.
7ML19985HP01 SITRANS LR 200 (PROFIBUS PA) – INSTRUCTION MANUAL
Description
safety approval
-3
10
-6
10
-6
10
safety approval
-12
10
1
measured value
1
equivalent value
sensitivity threshold
Units
(cont' d )
mA
mA
mH
Henry
Farad
Second
Farad
V
V
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