User's Manual
Table Of Contents
- 8 Parameter reference
- 9 Service and maintenance
- 10 Diagnosing and troubleshooting
- 11 Technical data
- 12 Dimension drawings
- 12.1 Threaded horn antenna
- 12.2 Threaded horn antenna with extension
- 12.3 Flanged horn antenna
- 12.4 Flanged horn antenna with extension
- 12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only)
- 12.6 Flanged encapsulated antenna (3"/DN80/80A sizes and larger)
- 12.7 Threaded PVDF antenna
- 12.8 Threaded connection markings
- 12.9 Raised-Face flange per EN 1092-1 for flanged horn antenna
- 12.10 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna
- 12.11 Flat-Face flange
- 12.12 Process connection tag (pressure rated versions)
- A Appendix A: Technical reference
- B Appendix B: PROFIBUS PA profile structure
- C Appendix C: Communications via PROFIBUS
- D Appendix D: Certificates and Support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
Index
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
263
Function keys
measurement mode, 38
G
GSD file, 230
H
handheld programmer
edit mode, 44
measurement mode, 38
navigation, 41
programming, 39
hazardous area installations
instructions, 34
wiring requirements, 28
hysteresis
setup, 123
I
Identifications and abbreviations
list, 247
installation
hazardous area requirements, 28
requirements, 15
warnings and notes, 15
internal temperature
monitoring, 212
L
Language, 154
LCD display
contrast adjustment, 151
echo profile viewing, 48
fast mode, 151
lens
replacement, 160
lid-lock set screw, 26
Limit Hysteresis
setup, 123
Local Operation
enable/disable, 154
LOE Timer
explanation, 210
setup, 98
loop voltage vs. loop resistance
power supply requirements, 30
loss of echo (LOE)
explanation, 210
Loss of Echo (LOE)
explanation, 210
LUI (local user interface), 36
M
maintenance
calibration schedules, 78
cleaning, 159
repairs, 159
replacing antenna, 159
replacing lens, 160
service schedules, 78
maintenance settings
Calibration Interval, 148
see Diagnostics, 126
see Remaining Sensor Lifetime, 140
Service Interval, 144
Master Reset
factory defaults, 133
reset PROFIBUS address (to 126), 133
standard defaults, 133
Measurement Response
explanation, 209
mounting
bypass requirements, 20
handheld programmer access, 18
housing construction, 18, 20
nozzle design, 17, 213
nozzle location, 17, 213
on vessel with obstructions, 20
sunshield recommended, 20
N
nameplate
Intrinsically Safe (ATEX/IECEx), 30
Intrinsically Safe (FM/CSA), 30
Near Range
explanation, 209
setup, 108