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P*219, P*229, P*239, P*249, P*259, P*269 - Relay Max.Rate 
This parameter will allow a pump to be switched at a pre-determined Rate 
of change of Level, irrespective of the “ON” level setpoint P*213, 223, 233, 
243, 253, 263. Once a General Control relay has been switched “ON” by the 
pre-determined  Rate  of  Change,  it  will  remain  energised  until  the  level 
reaches the “OFF” level setpoint P*214, 224, 234, 244, 254, 264.  
Max. Rate is entered in Measurement Units (P*104) per minute and can be 
entered  as  either positive  (increasing  level)  or negative  (decreasing level) 
values. 
Control  
P1 and P2 
When P*210, 220, 230, 240, 250, 260 = 3 (Control) 
When a relay is being set up as a control relay, the second parameter that 
will be displayed in the menu determines its function.  
P*211, P*221, P*231, P*241, P*251, P*261 Relay Function, 
This function allows the relay to be assigned to specific control functions 
(other than pumps and alarms) several of these functions work in relation to 
time.  
This  can  be  used  to  activate  devices  based  on  elapsed  time  or  running 
cycles, such as a timed rake control to keep a ram lubricated if idle for long 
periods, or flush valve operation. 
Relay will energise “ON” after the Cycle 
time that is set in Relay Setpoint 2 (P*214, 
224, 234, 244, 254, 264). And turns “OFF”, 
de-energises, after the On Time Period that 
is set in Relay Setpoint 1 (P*213, 223, 233, 
243, 253, 263)