Siemens 7ML5431 - Page 279

Index
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
279
L
Language, 156
LCD display
contrast adjustment, 153
echo profile viewing, 62
fast mode, 153
measurement mode, 51
lens
replacement, 163
lid-lock set screw, 41
linearization via AMS, 96
Lithium batteries
Safety, 49
Local User Interface (LUI), 51
LOE
Fail-safe Mode, 243
loop test
simulate analog output, 85
loop voltage vs. loop resistance
power supply requirements, 43
loss of echo (LOE)
explanation, 243
LUI (Local User Interface)
contrast adjustment, 51
M
mA output
select analog output, 84
maintenance
calibration schedules, 84
repairs, 161
replacing antenna, 163
replacing lens, 163
service schedules, 84
Maintenance, 162
maintenance settings, 138
Calibration Interval, 150
see Remaining Sensor Lifetime, 144
Service Interval, 147
Manuals, 263
Master Reset
factory defaults, 139
factory defaults via AMS, 93
measurement range
blanking via Near Range, 240
extension via Far Range, 240
Measurement Response
explanation, 240
Modifications
correct usage, 17
improper, 17
mounting
bypass requirements, 32
handheld programmer access, 31
housing construction, 26, 32
nozzle design, 29
nozzle location, 30
on vessel with obstructions, 32
sunshield recommended, 32
N
Namur NE43, 119, 243
Near Range
explanation, 240
setup, 127
O
Operating Instructions, 263
operating principles
cleaning, 233
overview, 19
P
password protection
via AMS, 105
via PDM, 90
PDM
see SIMATIC PDM, 69
PED (Pressure Equipment Directive), 25, 246
performance
specifications, 175
PIN to unlock
local access, 155
pipe sizes, 222
flange mounting, 222, 225
polarization reference point, 32
power, 175
power source
requirements, 40
power supply requirements
loop voltage vs. loop resistance, 43
pressure applications, 25
Pressure Equipment Directive, 25, 246
Process Intelligence, 234
process temperature
maximum, 244