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P213 (Relay 1), P223 (Relay 2) - Relay “ON” Setpoint  
This  parameter determines  the “ON” point for the alarm  and should be set as 
follows, in Measurement Units P104  
High Alarm
P214/P224 “OFF” Setpoint 
 
P214 (Relay 1), P224 (Relay 2) - Relay “OFF” Setpoint  
This parameter determines the “OFF” point for the alarm and should be set as 
follows, in Measurement Units P104   
High Alarm
P213/P223 “ON” Setpoint 
 
LOE (Loss Of Echo)) 
No setpoints are required when relays are used as LOE (Loss Of Echo) 
 
Control 
P210 (Relay 1), P220 (Relay 2) =2 (Control) 
P211 (Relay 1), P221 (Relay 2) - Relay Function, 
This  parameter  defines  whether  the  general  control  relay  function  is 
currently “ON” or “OFF”. 
General Control  Description 
0= Off (Default) 
Relay is always de-energised. 
1= On 
Control  is  based  on  the  level  in  the  vessel.  All 
general controls are used to assist each other (run at 
the same time) and each general control has its own 
“ON” and “OFF” setpoints.