Operating Instructions

Table Of Contents
1
1
2
4
8
6
3
5
1-3-2-4
1-5-3-7 2-6-4-8
2
3
4
7
Flange bolting instructions:
1. Use cross-pattern sequence as shown.
2. Check uniformity of the flange gap.
3. Apply adjustments by selective tightening if required.
4. Torque incrementally until desired value is reached.
5. Check/re-torque after 4 to 6 hours.
Recommendations for flange bolting:
Check bolts periodically, re-torque as required.
Use new lens, O-ring and spring washers after removal from installation.
For instructions on replacing the lens, see Part replacement (Page 155).
See Flanged Horn with extension (Page 186), Raised-Face Flange per EN 1092-1 (Page 215),
Flat-Face Flange (Page 217), and PTFE Flanged encapsulated antenna (3"/DN80/80A sizes
and larger) (Page 192) for dimensions.
Installing/mounting
4.4 Installation instructions
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG 33