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: Communications via Foundation Fieldbus
- C Appendix C: Certificates and support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
Index
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 01/2014, A5E32221411-AB
267
explanation, 239
Loss of Echo (LOE)
explanation, 239
LUI (Local User Interface)
contrast adjustment, 39
M
maintenance
cleaning, 185
repairs, 185
replacing antenna, 185
replacing lens, 186
maintenance settings
Calibration Interval, 170
see Diagnostics, 159
see Remaining Sensor Lifetime, 166
Service Interval, 168
Master Reset
factory defaults, 162
measurement range
blanking via Near Range, 238
extension via Far Range, 238
Measurement Response
explanation, 235
mounting
bypass requirements, 20
handheld programmer access, 18
housing construction, 18, 20
nozzle design, 17, 241
nozzle location, 18, 241
on vessel with obstructions, 20
sunshield recommended, 20
N
nameplate
Intrinsically Safe (ATEX/IECEx), 32
Intrinsically Safe (FM/CSA), 32
Near Range
explanation, 238
setup, 142
O
operating principles
cleaning, 229
Output limits
setup, 157
Output Scale
setup, 156
overview, 13
P
password protection
via AMS, 116
PED (Pressure Equipment Directive), 16, 241
performance
specifications, 198
pipe sizes
flange mounting, 221, 223
polarization reference point, 20
power source
requirements, 25
power supply requirements
loop voltage vs. loop resistance, 32
pressure applications, 16
Pressure Equipment Directive, 16, 241
Process Intelligence, 230
process temperature
maximum, 240
programmer
handheld, 41
programming
via the handheld programmer, 42
propogation factor
values, 144
Q
Quick Start Wizard
via LUI, 48
R
raised face flange markings, 220, 222
reading erratic
troubleshooting, 196
reading incorrect
troubleshooting, 196
reading response slow, 196