Totalizing Pumped Volume; Setting A Pump To Run-On - Siemens SITRANS LUT400 Series Operating Instructions Manual

Totalizing pumped volume

Available only on LUT430 (Pump and Flow model), and LUT440 (OCM model).
Prerequisite: The volume of the vessel must be known.
Parameter
2.6.1. Vessel Shape
2.6.3. Maximum Volume
2.7.1.4. Pump Control Mode
or
2.7.1.5. Pump Control Mode
2.7.1.6. ON Setpoint Pump 1
2.7.1.8. ON Setpoint Pump 2
2.7.1.7. OFF Setpoint Pump 1
2.7.1.9. OFF Setpoint Pump 2
2.7.3.2. Totalizer Decimal
Position
2.7.3.3. Totalizer Multiplier
2.7.3.4. Inflow/Discharge
Adjust
1. Display vessel volume on the LCD (set parameter
2. Toggle to SV on LCD to display current level (set parameter
Secondary
to LEVEL).
2.7.3. 1 . Running Totalizer
3. See

Setting a pump to run-on

This functionality is used to reduce sludge and sediment from building up at the bottom of
a wet well, thereby reducing maintenance. This is achieved by running the pumps below
the normal OFF setpoint and requires you to set a run-on duration and interval to control
this event.
Page 88 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
Sample
Description
Value
LINEAR Vessel shape is linear (flat bottom)
17.6
Max volume is 17.6m
ADA Sets the control algorithm used to trip the
pump relay to ALTERNATE DUTY ASSIST.
1.0 m Sets the level at which pump 1 turns on. The
first cycle will use this setpoint. Subsequent
cycles rotate the setpoint among the
pumps.
1.2 m Sets the level at which pump 2 turns on.
0.2 m Sets the level at which pump 1 turns off. The
first cycle will use this setpoint. Subsequent
cycles rotate the setpoint among the
pumps.
0.3 m Sets the level at which pump 2 turns off.
2 DIGITS Sets the totalizer display to 2 digits.
1000 Actual volume is divided by 1000, prior to
display on LCD.
RATE The inflow rate measured just prior to the
ESTIMATE start of the pump cycle is used to estimate
the inflow for the duration of the cycle.
to view pumped volume.
3
or 17,600 liters.
2. 1 .2. Sensor Mode
to VOLUME).
2.1.4. Sensor Mode
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