Siemens SITRANS LR250 Compact Operating Instructions page 26

Installing/mounting
4.4 Installation instructions
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 51).
For more details, see dimension drawings in full operating instructions.
24
1-3-2-4
1
4
3
1-5-3-7 2-6-4-8
1
8
6
5
2
2
3
4
Compact Operating Instructions, 06/2018, A5E33469191-AB
LR250 (mA/HART)