Siemens SITRANS LUT400 - Page 127

General Operation
7.11 Open Channel Monitoring (OCM)
SITRANS LUT400
Operating Instructions, 07/2019, A5E33329501-AC
125
Parameter
Value
Primary Measuring Device (PMD) (2.15.1.)
(Page 230)
Exponential Devices
Flow Exponent (2.15.3.2.) (Page 231)
Weir Type
Value
1
V-notch
2.50
Suppressed rectangular
1.50
Cipolletti or trapezoidal
1.50
Sutro or proportional
1.00
Maximum Head (2.15.3.3.) (Page 232)
Maximum Flow at 20 mA (2.15.3.4.)
(Page 232)
Flowrate Units (2.15.3.7.) (Page 233)
Far Range (2.2.5.) (Page 172)
K Factor (2.15.4.1.) (Page 235)
2
1)
Values are samples only. Consult weir manufacturer’s documentation for correct flow
exponent.
2)
Required for exponential device absolute calculation only.