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MultiRanger 200
All of these algorithms can be used to start multiple pumps (assist) or one pump at a time
(backup).
The MultiRanger 100 and MultiRanger 200 have three main methods of pump
control:
Fixed
Starts pumps based on individual setpoints and always starts the same pumps in the
same sequence.
Alternate
Starts pumps based on the duty schedule and always leads with a new pump.
Service Ratio
Starts pumps based on user-defined ratio of running time.
Fixed Duty Assist (P111 = 50)
Ties the indexed pump relay directly to the indexed setpoint.
Relay Operation (for P118 = 2)
The relay contact closes at the ON setpoint and opens at the OFF setpoint. Multiple relay
contacts in the pump group can be closed at the same time.
Relay Table
The following table shows relay status when each setpoint is reached.
Index
On 3
On 2
On 1
Off 0
Fixed Duty Backup (P111 = 51) [MR 200]
Ties the indexed pump relay directly to the indexed setpoint.
Please note that this feature applies to the MultiRanger 200 only.
Relay Operation (for P118 = 2)
The relay contact closes at the ON setpoint and opens at the OFF setpoint. When a new
relay trips the previously closed relay contact opens to shut down the running pump.
Only one relay contact in the pump group can be closed at any one time.
Page 240
MultiRanger 100/200 – INSTRUCTION MANUAL
Relays
1
2
3
On
On
On
On
On
Off
On
Off
Off
Off
Off
Off
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