Technical data
Proline Prowirl F 200 PROFIBUS PA
190
Hauser
Flow measuring ranges in US units
DN
Liquids
Gas/steam
[in]
[ft³/min]
[ft³/min]
½
0.045 to 2.9
0.23 to 15
1
0.14 to 8.8
0.7 to 74
1½
0.34 to 22
1.7 to 180
2
0.56 to 36
2.9 to 480
3
1.3 to 81
6.4 to 1
100
4
2.2 to 140
11 to 1
900
6
5 to 320
25 to 4
300
8
8.7 to 560
44 to 7
500
10
14 to 880
70 to 12
000
12
19 to 1
300
99 to 17
000
Flow velocity
D
i
v,Q
A0033468
D
i
Internal diameter of measuring tube (corresponds to dimension K)
v
Velocity in measuring tube
Q
Flow
The internal diameter of measuring tube D
i
is denoted in the dimensions as
dimension K.
For detailed information, see the Technical Information.→ 217
Calculation of flow velocity:
v [m/s] =
4 · Q [m /h]
³
π
· D [m]
i
²
·
1
3600 [s/h]
v [
!
/s] =
4 · Q [
/min]
ft³
π
· D [ft]
i
²
·
1
60 [s/min]
A0034301
Lower range value
A restriction applies to the lower range value due to the turbulent flow profile, which
increases only in the case of Reynolds 5
000numbers. The Reynolds number is
dimensionless and indicates the ratio of the inertia force of a fluid to its viscous force when
flowing and is used as a characteristic variable for pipe flows. In the case of pipe flows with
Reynolds numbers less than 5
000, periodic vortices are no longer generated and flow rate
measurement is no longer possible.
The Reynolds number is calculated as follows:
Summary of Contents for Proline Prowirl F 200
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