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
Dimension drawings
12.8 Threaded connection markings
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 01/2014, A5E32221411-AB
219
Threaded PVDF antenna dimensions
Nominal antenna
size
Antenna O.D.
Height to sensor
reference point
a)
Beam angle
b)
Measurement
range
50 mm (2")
49.5 mm (1.94")
121 mm (4.76")
19 degrees
10 m (32.8 ft)
c)
a)
Height from bottom of antenna to sensor reference point as shown: see dimension drawing.
b)
-3dB in the direction of the polarization axis. See Polarization reference point (Page 20) for an
illustration.
c)
20m when installed in stillpipe.
12.8
Threaded connection markings
With the exception of the threaded PVDF antenna, threaded connection markings are found on
the flat face/faces of the process connection.
Serial number: a unique number allotted to each process connection, including the date of
manufacture (MMDDYY) followed by a number from 001 to 999, (indicating the sequential unit
produced).