In-Situ Light Tower Alarm Kit for the Con TROLL PRO System - Manual (Page 7)

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Programming Sequence (Relay 1)
On the Con TROLL PRO, select Menu, Settings, Outputs, Relays, Relay 1.
l
Enable the relay.
l
Mode = Low Alarm
l
Parameter = A-Concentration
l
Setpoint = 4 mg/L
l
Deadband = 0.2 mg/L (This value is recommended to prevent relay chatter.)
Adjust the Setpoint and Deadband for Relay 1 to optimize aerator
performance and minimize aerator cycling.
Programming Sequence (Relay 2)
On the Con TROLL PRO, select Menu, Settings, Outputs, Relays, Relay 2.
l
Enable the relay.
l
Mode = Low Alarm
l
Parameter = A-Concentration
l
Setpoint = 3 mg/L
l
Deadband = 0.2 mg/L (This value is recommended to prevent relay chatter.)
Configuring a Dual-Parameter Light Alarm
In this scenario, the Con TROLL PRO monitors two independent tanks, each with an
RDO PRO Probe or RDO PRO-X Probe.
Probe A is placed in Tank A. The Con TROLL PRO turns on aerator A and the yellow
light when the DO falls below 4 mg/L.
Probe B is placed in Tank B. The Con TROLL PRO turns on aerator B and the red light
when the DO falls below 5 mg/L.
Relay 1 is used to implement the Tank A control function, Relay 2 is used to implement
the Tank B control function.