Measuring Range; A.2.2 Measuring Range - Emerson Rosemount 5400 Series Reference Manual

Appendix A: Reference data
November 2014
Ambient temperature effect
0.05%/10 K in temperature range -40 °F to 176 °F (-40 °C to 80 °C)
Update interval
1 second
A.2.2

Measuring range

Measuring range and minimum dielectric constant
Maximum measuring range from flange: 115 ft (35 m)
The measuring range depends on:
„
„
„
„
See
measuring range depending on the application and factors described below, the values are a
guideline for clean liquids. For more information, ask your local Emerson Process Management
representative.
Table A-4. Rosemount 5402, Maximum Recommended Measuring Range, ft (m)
High frequency
antennas
2-in. Cone / Process Seal
3-in. Cone / Process Seal
4-in. Cone / Process Seal
(1) A. Oil, gasoline or other hydrocarbons, and petrochemicals (
In pipes or with ideal surface conditions, for some liquefied gases (
B. Alcohols, concentrated acids, organic solvents, oil/water mixtures, and acetone (
C. Conductive liquids, e.g. water based solutions, dilute acids, and alkalis (
190
Microwave frequency
Antenna size
The dielectric constant (H
Process conditions
Table A-4 and Table A-5
A B
33 (10) 49 (15)
49 (15) 66 (20)
66 (20) 82 (25)
H
=1.9-4.0)
r
) of the liquid (min. H
r
for measuring range and minimum dielectric constant. Due to the
Dielectric constant
C A
66 (20) 82 (25) 115 (35) 115 (35)
98 (30) 82 (25) 115 (35) 115 (35)
115 (35) 82 (25) 115 (35) 115 (35)
H
=1.4-4.0)
r
H
=4.0-10.0)
r
H
>10.0)
r
=1.4)
r
(1)
B C A
9.8 (3)
13 (4)
23 (7)
Reference Manual
00809-0100-4026, Rev HA
B C
20 (6) 33 (10)
30 (9) 39 (12)
39 (12) 49 (15)
Reference Data