Siemens SITRANS LUT400 Operating Instructions Manual page 5

Vessel Shape and Dimensions ..............................................................................................73
Characterization chart .............................................................................................................73
Alarms ....................................................................................................................................................76
Level .............................................................................................................................................76
In-bounds/ Out-of-bounds Range .........................................................................................77
Temperature ...............................................................................................................................78
Switch (Discrete Input) Alarm ................................................................................................78
Fail-safe Fault Alarm ................................................................................................................79
Flowrate .......................................................................................................................................79
Pump Control .......................................................................................................................................79
Pump Control options ...............................................................................................................80
Pump Control algorithms............................................................................................... 80
Setting a pump down (wet well) group ...............................................................................80
Other Pump Control algorithms .............................................................................................82
Setting a pump up (reservoir) group ....................................................................................85
Pump Control Interlocks ..........................................................................................................87
Other Pump Controls ................................................................................................................87
Totalizing pumped volume ............................................................................................ 88
Setting a pump to run-on............................................................................................... 88
Setting the pump start delays ...................................................................................... 89
Reducing wall cling......................................................................................................... 90
Saving energy .................................................................................................................. 91
Tracking pump usage..................................................................................................... 92
Other controls ......................................................................................................................................92
Relays controlled by time .............................................................................................. 92
Flow ........................................................................................................................................................93
Flow calculation ........................................................................................................................93
Totalizing flow ............................................................................................................................93
External Totalizers and Flow Samplers .........................................................................................93
Relay contacts ...........................................................................................................................94
Totalizer .......................................................................................................................................95
Flow Sampler .............................................................................................................................96
Open Channel Monitoring (OCM) ...................................................................................................97
Method of Flow Calculation ...................................................................................................98
Common parameters ................................................................................................................98
Setting Zero Head .....................................................................................................................99
PMDs with Exponential Flow to Head function ...............................................................100
Applicable weir profiles.............................................................................................. 100
Parshall Flume............................................................................................................... 101
Leopold Lagco Flume................................................................................................... 102
Cut Throat Flume .......................................................................................................... 103
Khafagi Venturi ............................................................................................................. 104
Universal calculation support ................................................................................... 116
Typical flow characterization .................................................................................... 116
Example flumes............................................................................................................. 117
Example weirs............................................................................................................... 118
Trends ..................................................................................................................................................118
Data logging .......................................................................................................................................119
Viewing the Data Log .............................................................................................................119
Simulation ...........................................................................................................................................120
Pump relay behaviour during simulation................................................................ 121
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