Reference Manual
00809-0100-4026, Rev FA
July 2009
3-19
Rosemount 5400 Series
Mounting in Pipes Still-pipe mounting is recommended for tanks with extremely turbulent surface
conditions. All cone antenna sizes for the Rosemount 5400 Series of
transmitters can be used for Still-pipe installations. The 3 in. (75 mm) antenna
for the 5401 is designed for use in Still-pipes only. Rod antennas are not
recommended for Still-pipes.
When the transmitter is mounted on a Still-pipe, the inclination should be
within 1°. The gap between the antenna and the Still-pipe may be up to 0.2 in.
(5 mm).
Figure 3-19. Mount the
transmitter vertically.
Recommendations for pipe installations
• The pipe interior must be smooth
• Not suitable for adhesive products
• At least one hole is above the product surface
• The hole diameter Ø should not exceed 10% of the pipe diameter D
• Holes should only be drilled on one side