Pmds With Exponential Flow To Head Function - Siemens HydroRanger 200 HMI Operating Instructions Manual

Flume size
(Diameter in feet)
0.5
0.75
1.0
1.5
2.0
2.5
3.0
4.5
● 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.
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
Point of measurement
centimeters
5
7
9
14
18
23
28
41
7.12 Open Channel Monitoring (OCM)
inches
1 3/4
2 3/4
3 3/4
5 1/2
7 1/4
9
10 3/4
16 1/4
Operating
145