Siemens SITRANS LUT400 - Page 143

General Operation
7.11 Open Channel Monitoring (OCM)
SITRANS LUT400
Operating Instructions, 07/2019, A5E33329501-AC
141
BS- 3680 Thin Plate V-Notch Weir
①
Approach width (B)
②
Transducer
③
4 to 5 x h
max
④
Flow
⑤
Zero head
⑥
Notch angle (a)
⑦
Crest width (b)
⑧
Height (h)
* The transducer must be above the maximum head by at least the blanking value (see Near
Range (2.2.4.) (Page 172)).
Parameter
Value
Primary Measuring Device (PMD) (2.15.1.) (Page 230)
BS-3680 Thin Plate V-Notch Weir
PMD Dimensions (2.15.4.) (Page 234)
Notch angle (a)
Maximum Head (2.15.3.3.) (Page 232)
Far Range (2.2.5.) (Page 172)