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Rosemount Model 8800C Vortex Flowmeter with FOUNDATION
TM
Fieldbus
8-2
NOTE
The ρ in Tables 2 and 3 is the process fluid density at flowing conditions
in lb/ft
3
for ft/s and kg/m
3
for m/s.
Process Temperature Limits Standard
–40 to 450 °F (–40 to 232 °C).
Extended
–330 to 800 °F (–200 to 427 °C).
Ambient Temperature Limits Operating
–58 to 185 °F (–50 to 85 °C).
–4 to 185 °F (–20 to 85 °C) for flowmeters with local indicator.
Storage
–58 to 250 °F (–50 to 121 °C).
–50 to 185 °F (–46 to 85 °C) for flowmeters with local indicator.
Output Signals
Manchester-encoded digital signal that conforms to IEC 1158-2 and
ISA 50.02.
TABLE 8-3. Maximum Measurable Velocities
(Use the Smaller of the Two Values).
Feet Per Second Meters Per Second
Liquids
or 25 or 7.6
Gases
or 250 or 76
90,000/ρ 134,000/ρ
90,000/ρ 134,000/ρ
TABLE 8-4. Water Flow Rate Limits in Schedule 40 Pipe.
Line Size
(inches/DN)
Minimum and Maximum
Measurable Water Flow Rates *
Gallons/Minute Cubic Meters/Hour
½/15 1.82 to 23.7 0.41 to 5.38
1/25 3.08 to 67.3 0.70 to 15.3
1½/40 4.83 to 158 1.10 to 35.9
2/50 7.96 to 261 1.81 to 59.4
3/80 17.5 to 576 4.00 to 130
4/100 30.2 to 992 6.86 to 225
6/150 68.6 to 2,251 15.6 to 511
8/200 119 to 3,898 27.0 to 885
* Conditions: 77 °F (25 °C) and 14.7 psia (1.01 bar absolute)