Saab TankRadar L/2
41
US Version. Seventh edition, June 1995
Installation Manual
10.4.4 System with Reference Pin and Reflector Plug
At the top of the pipe there is a reference pin and at the bottom
there is a reference plug made from epoxy resin.
Note:
If the products that will be stored in the tank are not compatible
with epoxy resin, the system with two or three Reference Pins should be
used instead, see chapter 10.4.5.
See installation drawings for information on where to place the
references in the still pipe. Enclosed with reference pin and bottom
plug are instructions on how to install these.
10.4.5 System with Reference Pins Only
Saab Tank Control delivers three Reference Pins to each Radar
Tank Gauge and they have to be mounted in the still pipe before it
is lowered into the tank. For more information please refer to the
installation drawings, see List of Drawings in chapter 8.
Position the holes for the Reference Pins so that the top pin is
located at approximately 95% of the total tank height but at least
0.8 m below the flange of the still pipe. Place the second pin at
approximately 50% level.
Place the lowest pin at approximately 20 % of the tank height but
at least 0.8 m above the lower end of the pipe.
On tanks with tank heights of less than 7 m, only the top and
bottom reference pins are used.
10.4.6 Extension Pipe for Minimum Distance
The Radar Tank Gauge should be placed so that there is always
800 mm or more between the Closing and the maximum product
level. If the tank is filled completely, an extension pipe can be
mounted to raise the Radar Tank Gauge so that it measures cor-
rectly all the way up to the maximum level. See figure 10.9.
W11
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Min 800
mm to
product
surface
Figure 10.9 shows an extension pipe.
