12
Reference Manual
00809-0100-4026, Rev KC
Introduction
October 2018
Introduction
Table 2-3. Rosemount 5401, Maximum Recommended Measuring Range, ft (m)
Low
Frequency
Antennas
Dielectric Constant
(1)
1. 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)
A B C A B C A B C
3-in. Cone
(2)
2. Pipe installations only. NA = Not Applicable.
N/A N/A N/A 82
(25)
115
(35)
115
(35)
N/A N/A N/A
4-in.
Cone/Rod
(3)
3. Pipe installations are not allowed with rod antennas.
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)