Pmds With Exponential Flow To Head Function; Applicable Weir Profiles - Siemens HydroRanger 200 HMI Operating Instructions Manual

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.
Standard weirs
Weir profile

Applicable weir profiles

V-Notch or
triangular
Parameter
2. 1 3.2. Primary Measuring Device
2. 1 3.4.1. Flow Exponent
2. 1 3.4.2. Maximum Head
2. 1 3.4.3. Maximum Flow
2. 1 3.4.4. Flow Time Units
2.2.7. Range Extension
1.
Values are samples only. Consult weir manufacturer's documentation for
correct flow exponent.
A5E36281317
Transducer
3 to 4
h
max
Suppressed
rectangular
HydroRanger 200 HMI – OPERATING INSTRUCTIONS
h
Cipolleti or
trapezoidal
Index Mode
Global Exponential devices
Global
Weir type
V-Notch Weir
Suppressed Rectangular
Weir
Cipolletti Weir or trapezoidal
Sutro or proportional
Global Maximum Head
Global Maximum Flow
Global Time Units
Global Range Extension
Sutro or
proportional
1
Value
2.50
1.50
1.50
1.00
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