Siemens HydroRanger 200 HMI - Pmds with Exponential Flow to Head Function

Operating
7.12 Open Channel Monitoring (OCM)
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
145
Flume size
(Diameter in feet)
Point of measurement
centimeters
inches
0.5
5
1 3/4
0.75
7
2 3/4
1.0 9 3 3/4
1.5
14
5 1/2
2.0
18
7 1/4
2.5
23
9
3.0
28
10 3/4
4.5
41
16 1/4
● H-Flumes come with a flat or sloping floor. The same flow table can be used because
error is less than 1%.
7.12.4.5
PMDs with exponential flow to Head Function
For Primary Measuring Devices (PMDs) that measure flow by an exponential equation, use
these parameters. Ensure that you use the correct exponent for your PMD; the values below
are samples only.