Siemens HydroRanger 200 HMI - H-Flume

Operating
7.12 Open Channel Monitoring (OCM)
HydroRanger 200 HMI
144 Operating Instructions, 06/2018, A5E36281317-AC
7.12.4.4
H-flume
①
Transducer
1)
④
Empty (2.2.4.) (Page 170)
②
Flow
⑤
Span (2.2.2.) (Page 169)
③
Point of measurement
⑥
D=flume height
Parameter
Mode
Primary Measuring Device (2.13.2.)
(Page 240)
H-Flume
PMD Dimensions (2.13.5.) (Page 246)
OCM Dimension 1 (2.13.5.1.)
(Page 246)
Flume height (D)
Maximum Head (2.13.4.2.) (Page 243)
Maximum Head
Maximum Flow (2.13.4.3.) (Page 243)
Maximum Flow
Flow Time Units (2.13.4.4.) (Page 244)
Time Units
● Sized by maximum depth of flume
● Approach is preferably rectangular, matching width and depth for distance, 3 to 5 times
the depth of the flume.
● May be installed in channels under partial submergence (ratio of downstream level to
head). Typical errors are:
– 1% @ 30% submergence
– 3% @ 50% submergence
● For rated flows under free flow conditions, the head is measured at a point downstream
from the flume entrance.