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7.7.4
Setting a pump up (reservoir) group ................................................................................ 111
7.7.4.1
Set the common parameters ............................................................................................ 111
7.7.4.2
Set Relays to ALTERNATE DUTY ASSIST (ADA) ................................................................... 112
7.7.4.3
Set the ON Setpoints ........................................................................................................ 112
7.7.4.4
Set the OFF Setpoints ...................................................................................................... 112
7.7.5
Pump Control Interlocks ................................................................................................... 113
7.7.6
Other Pump Controls ....................................................................................................... 114
7.7.6.1
Totalizing pumped volume ............................................................................................... 114
7.7.6.2
Setting a pump to run-on ................................................................................................. 115
7.7.6.3
Setting the pump start delays........................................................................................... 115
7.7.6.4
Reducing wall cling .......................................................................................................... 115
7.7.6.5
Saving energy .................................................................................................................. 116
7.7.6.6
Tracking pump usage ....................................................................................................... 117
7.8
Other controls ................................................................................................................. 118
7.8.1
Relays controlled by time ................................................................................................. 118
7.9
Flow ................................................................................................................................ 119
7.9.1
Flow calculation .............................................................................................................. 119
7.9.2
Totalizing flow ................................................................................................................. 119
7.10
External Totalizers and Flow Samplers .............................................................................. 120
7.10.1
Relay contacts.................................................................................................................. 120
7.10.2
Totalizer .......................................................................................................................... 121
7.10.3
Flow Sampler ................................................................................................................... 122
7.11
Open Channel Monitoring (OCM) ..................................................................................... 123
7.11.1
Method of Flow Calculation ............................................................................................. 124
7.11.2
Common parameters ....................................................................................................... 124
7.11.3
Setting Zero Head ............................................................................................................ 125
7.11.4
PMDs with Exponential Flow to Head function ................................................................. 126
7.11.4.1
Standard Weirs ................................................................................................................ 126
7.11.4.2
Applicable weir profiles .................................................................................................... 126
7.11.4.3
Parshall Flume ................................................................................................................. 128
7.11.4.4
Leopold Lagco Flume ....................................................................................................... 129
7.11.4.5
Cut Throat Flume ............................................................................................................. 130
7.11.4.6
Khafagi Venturi ................................................................................................................ 131
7.11.4.7
Universal calculation support ........................................................................................... 149
7.11.4.8
Typical flow characterization ............................................................................................ 150
7.11.4.9
Example flumes ............................................................................................................... 151
7.11.4.10
Example weirs ................................................................................................................. 152
7.12
Trends ............................................................................................................................. 153
7.13
Data logging .................................................................................................................... 154
7.13.1
Viewing the Data Log ....................................................................................................... 154
7.14
Simulation ....................................................................................................................... 155
7.14.1
Pump relay behaviour during simulation .......................................................................... 156
7.14.2
Fail-safe and Simulation ................................................................................................... 157
7.14.3
HART status ..................................................................................................................... 157
7.14.4
Simulation process .......................................................................................................... 157
7.14.4.1
Simulating a fixed level .................................................................................................... 158
7.14.4.2
Simulating a changing level ............................................................................................. 158
7.14.4.3
Simulating Discrete Inputs ............................................................................................... 158
7.14.4.4
Simulation timeout .......................................................................................................... 159
6
Operating Instructions, 04/2021, A5E33329501-AG
SITRANS LUT400
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Troubleshooting
