Siemens SITRANS LR200 7ML5422 Operating Instructions Manual page 26

Installing/mounting
4.2 Mounting
Device orientation
Bypass installation
①
②
③
Stillpipe installation
①
②
26
Vent
Align front or back of device with vents
Optimum diameter 80 mm (3")
Slots
Align front or back of device with stillpipe slots
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE