Rod Assembly - Siemens SITRANS LR200 7ML5422 Operating Instructions Manual

A.14

Rod assembly

Note
Pressure applications
For pressure applications, it will be necessary to use PTFE tape or other appropriate thread
sealing compound, and to tighten the process connection beyond hand-tight.
①
Dimensions in mm (inch)
Note
PTFE paste is supplied with PTFE rod antenna versions (non-sanitary type).
● Water or process fluids must not enter the connecting threads: this could cause
reflections at the connection, which will appear as false echoes.
● Apply a small amount of PTFE paste to the antenna threads before threading the antenna
together, and tighten slowly. Ensure that the rod sections mate securely with no gaps. Do
not apply too much PTFE paste or the parts will not mate securely.
● Do not use wrenches or pliers. Hand tighten only (except in pressure applications: see
warning above).
166
Optional extension
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE