Rosemount 5402 - Safety Messages for Mechanical Installation

Reference Manual
00809-0100-4026, Rev FA
July 2009
3-7
Rosemount 5400 Series
Still-pipes in Metallic Materials
If used correctly, pipe measurement can be advantageous in many
applications:
• Use cone or process seal antennas – not the rod antenna
• The gap between the cone antenna and the still-pipe is limited to 0.2 in.
(5 mm). If required, order an oversized antenna and cut on location (N).
Only applicable to 5401 cone antennas and cone antennas with wetted
flange plate (i.e. straight antennas)
Figure 3-8. Nozzle
considerations for Still-pipes in
Metallic Materials
Nozzle
Recommendations and
Requirements
The Rosemount 5400 Series is mounted on a nozzle by using appropriate
flanges. For best performance, it is recommended that the nozzle meets the
following recommendations for height (L) and diameter:
Figure 3-9. Mounting of the 5400
Series transmitter.
(N)
Max. 0.2 in.
(5 mm)
L
Minimum Diameter
>0.4 in.
(10 mm)
Minimum Diameter
L
L
Minimum Diameter
Minimum Diameter
L
Process Seal Antenna Rod Antenna Cone Antenna Extended Cone Antenna
>0.4 in.
(10 mm)