Rosemount Tank Radar AB 5900 用户手册

300520EN, Rev AA
November 2009

3-11

Rosemount 5900 Series

Section 3. Installation

The Rosemount 5900 Still-pipe Array antenna fits flanges of size 5", 6", 8", 
10" and 12". The gauge has a flange for sealing the tank. The flange must be 
horizontal within ±2°. 

Figure 3-8. The flange must be 

horizontal within ±2°

When constructing new tanks, an 8" still pipe or larger is recommended. This 
is especially relevant in tanks with sticky, viscous products. Before 
manufacturing a new still pipe, we recommend that you contact Emerson 
Process Management / Rosemount Tank Gauging for advice. 

For highest performance, the total area of the slots or holes in the still pipe 
must not exceed the values shown in Table 3-4 below. The listed values refer 
to the total area of the holes over the entire length of the pipe, regardless of its 
length. In some cases it is possible to allow a larger total area than stated in 
Table 3-4. When the limits are exceeded, please contact Emerson Process 
Management / Rosemount Tank Gauging for advice. 

Table 3-4.  Maximum area of the 

slots or holes

5

6

8

10

12

0.1

0.1

0.4

0.80

1.2