Siemens SITRANS L Series Operating Instructions Manual page 15

Specific Conditions of Use
Model 7ML5738 Extension tube is constructed using Industry Electrical conduit installed by
qualified personnel per equipment manual and NFPA 70 National Electrical Code (FM
Approved Unit).
Model 7ML5738 Extension tube is constructed using Industry Electrical conduit installed by
qualified personnel per equipment manual and CEC C22.1 Canadian Electrical Code.
Note
Demands on the Extension tube
Material: Stainless steel 1.4301 (SS304) or 1.4305 (SS301) or 1.4571 (SS316Ti) or 1.4404
(SS316L)
The pipe must be manufactured from one single piece. It is not allowed to weld two or more
pieces together.
Carefully observe max. length, diameter, wall thickness, thread, tolerances as specified in
the drawing.
All sharp edges must be removed to protect the cable.
Thread testing
Each thread must be tested with go and no-go ring gauge according to standard EN 10226
(R 1" version) or ANSI B 1.20.1 (NPT 1" version).
SITRANS LVS300
Operating Instructions, 05/2019, A5E44908583-AB
CAUTION
Installing/mounting
2.8 Manufacturing of the extension tube
15