Siemens SITRANS LUT400 - Page 139

General Operation
7.11 Open Channel Monitoring (OCM)
SITRANS LUT400
Operating Instructions, 07/2019, A5E33329501-AC
137
BS- 3680 Finite Crest Weir
①
Crest Width (b)
②
Transducer
③
3 to 4 x h
max
④
Crest Length (L)
⑤
Flow
⑥
Zero Head
⑦
Height (h)
⑧
Crest Height (p)
* The transducer must be above the maximum head by at least the blanking value (see Near
Range (2.2.4.) (Page 172)).