Rosemount 8800D Series User Manual

Reference Manual
00809-0100-4004, Rev BA
August 2010
C-7
Rosemount 8800D
Example 2 (English units)
Therefore, an input frequency of 400 Hz represents a flow rate
of 19433.6 lb/hr in this application.
For a given input frequency, you may also determine the current output. Use
the Example 2 on page C-7 with an input frequency of 300 Hz:
URV= 40000 lb/hr LRV= 0 lb/hr F
in
(Hz) = 300.00
= 9.83 mA
Therefore, an input frequency of 300.00 Hz represents a current
output of 9.83 mA.
Fluid
= Saturated Steam URV
= 40000 lb/hr
Line size
= 3 in. LRV = 0 lb/hr
Line pressure
= 500 psia C
17
= C
13
/ (Table C-1 on
page C-5)
Operating
Temperature
= 467 °F Density () = 1.078 lb/cu-ft
Viscosity
= 0.017 cp Vortex
Frequency
= 400 Hz
K-factor
(compensated)
= 10.678 (via Field
Communicator or AMS)
M
= F(Hz) /(K x C
17
)
= 400/ {10.678 x (C
13
/)}
= 400/{10.678 x (0.00207792/1.078)}
= 400/(10.678 x 0.0019276)
= 19433.6 lb/hr
I
FHzK C
17
LRV–
URV LRV–
------------------------------------------------------
16


4+=
I
300 10.678 0.00192760–
40000 0–
--------------------------------------------------------------------------------------
16



4+=

Rosemount 8800D Series Specifications

General

Type	Vortex Flow Meter
Measurement Principle	Vortex Shedding
Operating Temperature	-40 to 185°F (-40 to 85°C)
Storage Temperature	-40 to 185°F (-40 to 85°C)
Communication Protocols	FOUNDATION Fieldbus
Material	316 stainless steel
Fluid Type	Liquid, Gas, Steam
Line Size	1/2 to 8 inches (15 to 200 mm)
Approvals	ATEX, IECEx, CSA, FM
Output Signal	4-20 mA
Process Connection	Flanged, Wafer, Threaded
Electrical Connection	M20
Protection Rating	IP66
Mounting Style	Wafer, Flanged