Omega DP6000 User Manual page 63

DP6000 Process Meter
Application #2: Pump Alternation Using Relays 3 & 4
1. Relays 1 and 2 are set up for low and high alarm indication.
2. Relays 3 and 4 are set up for pump alternation.
Set and Reset Point Programming
Relay Set Point
1
2 7500
3 7000
4 6000
The following graphics provide a visual representation of a typical pump
alternation application with high and low alarm monitoring:
1. Relay #4 turns the main pump on at 6000 gallons and turns it off at
1000 gallons.
2. With the Pump Alternation feature activated, the next time the level
reaches 6000 gallons, relay #3 transfers and starts the backup
pump.
Reset Point
495
6900
1000
Function
750 Controls low alarm
Controls high alarm
900 Controls backup pump
Controls main pump
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Instruction Manual