Reference Manual
00809-0100-4024, Rev BA
September 2005
Rosemount 5600 Series
2-38
Setting the Tank
Connection Length (TCL)
To set the Tank Connection Length, use one of the following procedures for
Standard and Non-Standard Extended Cone Antenna.
Standard Extended Cone Antenna
For the 20 in. (500 mm) extended cone the following TCL
ext
values can be
used:
Non-Standard Extended Cone Antenna
To adjust the TCL value do the following:
1. Start the Radar Master configuration software.
2. From the Antenna Type drop down list choose User Defined.
3. Enter the new TCL value.
Use the following formula to calculate the appropriate Tank Connection
Length (TCL):
TCL
ext
= TCL
cone
+ K*(L
ext
- L
antenna
)
where:
•
TCL
ext
= the TCL adjusted to the extended cone antenna
(See Table 2-7).
•
TCL
cone
= the default TCL for a standard cone antenna without
extension. Note that there are different TCL values for tank sealing
PTFE and Quartz, see Table 2-8.
•
L
ext
= the measured length of the extended cone antenna.
•
L
antenna
= the length of the standard cone antenna without extension.
•
K = a constant related to the antenna inner diameter.
Table 2-7. Standard Extended Cone Antenna
Antenna Type
3 inch
diameter = 68mm
4 inch
diameter = 90mm
6 inch
diameter = 138mm
TCL
ext
/PTFE
0.019 (0.489)
1.90 (0.482)
1.88 (0.477)
TCL
ext
/Quartz
2.08 (0.529)
2.06 (0.522)
2.04 (0.517)
Table 2-8. Non-Standard Extended Cone Antenna
Antenna Type
3 inch
diameter = 68mm
4 inch
diameter = 90mm
6 inch
diameter = 138mm
K
0.035
0.020
0.008
L
antenna
0.094
0.148
0.261
TCL
cone
/PTFE
0.475
0.475
0.475
TCL
cone
/Quartz
0.515
0.515
0.515
Summary of Contents for 5600 Series
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Page 208: ...Reference Manual 00809 0100 4024 Rev BA March 2004 Rosemount 5600 Series Index 4 ...
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