7ML19981FB05 MultiRanger 100/200 – INSTRUCTION MANUAL Page 65
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Pump Control
Setting a Pump to Run On [MR 200]
When you need to pump below the normal OFF setpoint, use P130 (Pump Run-On Interval)
and P131 (Pump Run-On Duration) to control this event.
Example:
The pump connected to Relay Three is set to pump for an extra 60 seconds every five
times it is triggered.
Setting the Pump Start Delays [MR 200]
The pump start delay ensures that all of the pumps do not start at once to avoid power
surges. There are two parameters used here: P132–Pump Start Delay and P133–Pump
Power Resumption Delay. The default is 10 seconds but you can increase this if your
pumps take longer to spin up.
Example:
The delay between pumps is set to 20 seconds and the delay of the first pump is set to 30
seconds.
Reducing Wall Cling [MR 200]
Use the Wall Cling parameter to randomly alter the ON and OFF setpoints over a range.
This eliminates the ridge of material that builds up at the setpoint that can give false
echoes.
This setting may increase the number of days between trips to clean the wet well.
Wall cling reduction is set by P136. The relay setpoints ON and OFF are randomly varied
inside a range so the material level does not stop at the same point.
Parameter Index Value Description
P130 3 5 Wait for Relay Three to pump five times and
then run-on.
P131 3 60 Run-on for 60 seconds.
Note: P130 counts when the indexed relay is tripped, not the number of pump
cycles. If the indexed relay only trips once every four pump cycles then the actual
interval of the run-on will be 20 pump cycles, or five cycles of Relay Three.
Parameter Index Value Description
P132 G 20 Wait at least 20 seconds between pump
starts.
P133 G 30 Wait for 30 seconds when power is restored.
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