![Rosemount 5401 Reference Manual Download Page 21](http://html1.mh-extra.com/html/rosemount/5401/5401_reference-manual_1487397021.webp)
Reference Manual
00809-0100-4026, Rev FA
July 2009
2-7
Rosemount 5400 Series
ANTENNA SELECTION
GUIDE/MEASURING
RANGE
The measuring range depends on the microwave frequency, antenna size,
the dielectric constant (
r
) of the liquid, and process conditions. A higher
dielectric constant value produces a stronger reflection. The figures in the
tables below are guidelines for optimum performance. Larger measuring
ranges may be possible. For more information, contact your local Emerson
Process Management representative.
A. Oil, gasoline or other hydrocarbons, and petrochemicals (
r
= 1.9-4.0).
In pipes or with ideal surface conditions, for some liquefied
gases (
r
= 1.4-4.0)
B. Alcohols, concentrated acids, organic solvents, oil/water mixtures, and
acetone (
r
= 4.0-10.0).
C. Conductive liquids, e.g. water based solutions, dilute acids, and alkalis
(
r
> 10.0).
Table 2-1. Maximum
recommended measuring range
for the Rosemount 5402 model.
Table 2-2. Maximum
recommended measuring range
for the Rosemount 5401 model.
High
Frequency
Antennas
Units: ft (m)
Dielectric Constant
A
B
C
A
B
C
A
B
C
2-in. Cone /
Process Seal
33 (10)
49 (15)
66 (20)
82 (25)
115 (35) 115 (35) 9.8 (3)
20 (6)
33 (10)
3-in. Cone /
Process Seal
49 (15)
66 (20)
98 (30)
82 (25)
115 (35) 115 (35) 13 (4)
30 (9)
39 (12)
4-in. Cone /
Process Seal
66 (20)
82 (25)
115 (35) 82 (25)
115 (35) 115 (35) 23 (7)
39 (12)
49 (15)
Low
Frequency
Device
Units: ft (m)
Dielectric Constant
A
B
C
A
B
C
A
B
C
3-in. Cone
(1)
NA
NA
NA
82 (25)
115 (35) 115 (35) NA
NA
NA
4-in. Cone /
Rod
(2)
23 (7)
39 (12)
49 (15)
82 (25)
115 (35) 115 (35) 13 (4)
26 (8)
39 (12)
6-in. Cone
43 (13)
66 (20)
82 (25)
82 (25)
115 (35) 115 (35) 20 (6)
33 (10)
46 (14)
8-in. Cone
66 (20)
82 (25)
115 (35) 82 (25)
115 (35) 115 (35) 26 (8)
39 (12)
52 (16)
(1) Pipe installations only. NA = not applicable.
(2) Pipe installations are not allowed with rod antennas.
Summary of Contents for 5401
Page 2: ......
Page 4: ......
Page 10: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series TOC 6 ...
Page 24: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series 2 10 ...
Page 80: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series 5 26 ...
Page 90: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series 6 10 ...
Page 160: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series B 16 ...
Page 174: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series C 14 ...
Page 177: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Index 3 Rosemount 5400 Series ...
Page 178: ...Reference Manual 00809 0100 4026 Rev FA July 2009 Rosemount 5400 Series Index 4 ...
Page 179: ......