Filter
Top Products
Section
8-1
8 Specifications
SPECIFICATIONS
Functional Specifications Service
Liquid, gas, and steam applications. Fluids must be homogeneous and
single-phase.
Line Sizes Wafer, Flanged, and Dual-Sensor Style
1
/2, 1, 1
1
/2, 2, 3, 4, 6, and 8 in.
(DN 15, 25, 40, 50, 80, 100, 150, and 200).
Pipe Schedules
Process piping schedules 10, 40, and 80.
NOTE
The appropriate bore diameter of the process piping must be entered
using any F
OUNDATION fieldbus-compliant host, such as the DeltaV
system with AMS inside from Fisher-Rosemount. Meters will be
shipped from the factory at the Schedule 40 default value unless
otherwise specified.
Measurable Flow Rates The Model 8800C flowmeter is capable of processing signals from flow
applications that meet the appropriate flowmeter sizing requirements.
To determine the appropriate flowmeter size for an application, process
conditions must be within the Reynolds number and velocity
limitations for the desired line size provided in Tables 1 through 3.
NOTE
Consult your local sales representative to obtain a computer-sizing
program that describes in greater detail how to specify the correct
flowmeter size for an application.
The Reynolds number equation shown below combines the effects of
density (ρ), viscosity (µ
cp
), inside pipe diameter (D), and flow rate (V).
.
TABLE 8-1. Minimum Measurable Reynolds Numbers.
Line Sizes (in./mm) Reynolds Number Limitations
½–4 (15–100) 10,000 minimum
6–8 (150 –200) 20,000 minimum
TABLE 8-2. Minimum Measurable Velocities
(Use the Larger of the Two Values).
Feet Per Second Meters Per Second
Liquids
or 0.7 or 0.22
Gases
or 6.5 or 2.0
R
D
VD
c
------------=
36/ρ
54/ρ
36/ρ 54/ρ