Parshall Flume - Siemens HydroRanger 200 HMI Operating Instructions Manual

Operating
7.12 Open Channel Monitoring (OCM)
7.12.4.6

Parshall Flume

①
②
③
Application information
● Sized by throat width
● Set on solid foundation
● For rated flows under free flow conditions, the head is measured at 2/3 the length of the
converging section from the beginning of the throat section
Parameter
Primary Measuring Device (2.13.2.)
(Page 240)
Flow Exponent (2.13.4.1.)
(Page 241)
Maximum Head (2.13.4.2.)
(Page 243)
Maximum Flow (2.13.4.3.)
(Page 243)
Flow Time Units (2.13.4.4.)
(Page 244)
148
C = converging dimension
2/3 C
Q
④
Flow
⑤
Transducer
⑥
Empty (2.2.4.) (Page 170)
Index Mode
Global Parshall Flume
Global 1.22–1.607 (consult your flume documenta-
tion)
Global Maximum Head
Global Maximum Flow (Q)
Global Time Units
Operating Instructions, 06/2018, A5E36281317-AC
1)
HydroRanger 200 HMI