User's Manual

Index
SITRANS LR250 (HART)
Operating Instructions, 01/2014, A5E32220602-AB
261
K
key functions
edit mode, 45
navigation mode, 42
L
Language, 164
LCD display
contrast adjustment, 161
echo profile viewing, 51
fast mode, 161
measurement mode, 36
lens
replacement, 170
lid-lock set screw, 26
linearization via AMS, 93
Local User Interface (LUI), 36
LOE
Fail-safe Mode, 227
loop test
simulate analog output, 82
loop voltage vs. loop resistance
power supply requirements, 28
loss of echo (LOE)
explanation, 226
LUI (Local User Interface)
contrast adjustment, 36
M
mA output
select analog output, 81
maintenance
calibration schedules, 81
cleaning, 169
repairs, 169
replacing antenna, 169
replacing lens, 170
service schedules, 81
maintenance settings, 143
Calibration Interval, 158
see Remaining Sensor Lifetime, 151
Service Interval, 154
Master Reset
factory defaults, 144
factory defaults via AMS, 90
measurement range
blanking via Near Range, 223
extension via Far Range, 223
Measurement Response
explanation, 223
mounting
bypass requirements, 20
handheld programmer access, 18
housing construction, 18, 20
nozzle design, 17, 229
nozzle location, 18, 229
on vessel with obstructions, 20
sunshield recommended, 20
multidrop mode, 242
N
Namur NE43, 121, 227
Near Range
explanation, 223
setup, 131
O
operating principles
cleaning, 215
overview, 13
P
password protection
via AMS, 105
via PDM, 87
PDM
see SIMATIC PDM, 61
PED (Pressure Equipment Directive), 16, 229
performance
specifications, 182
PIN to unlock
local access, 163
pipe sizes
flange mounting, 207, 209
polarization reference point, 20
power, 181
power source