Proper Mounting - Siemens SITRANS L Operating Instructions Manual

PTFE flanged encapsulated
Hygienic encapsulated
Note
Details about the process connection, process temperature and materials are laser etched
into the body of the flanged and hygienic versions. All other SITRANS LR250 versions have
details listed on a tag.
4.3

Proper mounting

Note
• Correct location is key to a successful application.
• Avoid reflective interference from vessel walls and obstructions by following guidelines in
this chapter.
NOTICE
Incorrect mounting
The device can be damaged, destroyed, or its functionality impaired through improper
mounting.
• Before installing ensure there is no visible damage to the device.
• Make sure that process connectors are clean, and suitable gaskets and glands are used.
• Mount the device using suitable tools. Refer to the information in Installation
Note
• On devices with a removable head, there is no limit to the number of times a device can
be rotated without damage.
• When mounting, orient the front or back of the device towards the closest vessel wall or
obstruction.
• Do not rotate the enclosure after programming and vessel calibration, otherwise an error
may occur, caused by a polarity shift of the transmit pulse.
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH
instructions (Page 30).
-40 to +80 °C
(-40 to +176 °F)
-40 to +80 °C
(-40 to +176 °F)
Installing/mounting
4.3 Proper mounting
-40 to +170 °C
(-40 to +338 °F)
-40 to +170 °C
(-40 to +338 °F)
with FKM seals used on process connection:
-20 to +170 °C (-4 to +338 °F)
with EPDM seals used on process connection:
-40 to +120 °C (-40 to +248 °F)
25