Emerson Rosemount 8600 Series - Units

Reference Manual
00809-0100-4860, Rev BF
Electronics Verification
May 2019
114
Rosemount 8600 Vortex Flow Meter
C.3.2 SI units
Example 1 (SI units)
Therefore, an input frequency of 80.00 Hz represents a flow rate of 1694.6 lpm in this
application.
For a given input frequency, you may also determine the current output. Use the above
example with an input frequency of 80.00 Hz:
URV= 2000 lpm LRV= 0 lpm F
in
(Hz) = 80.00
= 17.49 mA
Therefore, an input frequency of 80.00 Hz represents a current output of 17.49 mA.
Fluid = Water URV = 2000 lpm
Line size = 80 mm. LRV = 0 lpm
Line pressure = 700 kPas C
8
= 4.40287E-03 (from
Table C-1 on page110)
Operating
Temperature
= 60 °F
Input
Frequency
= 80 Hz
K-factor
(compensated)
= 10.772 (via Field Communicator or AMS)
M = F(Hz) /(K x C
8
)
= 80/(10.722 x 0.00440287)
= 1694.6 lpm
I
F Hz  K C
8
  LRV–
URV LRV–
-------------------------------------------------------------
16 






4+=
I
80 10.772 0.00440287  0– 
2000 0–
--------------------------------------------------------------------------------------
16 
 
 
 
4+=