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Chapter 3   How To Use Your IMP+ Level Monitoring System 
Operating the Controls 
Display 
Whilst in the Run Mode, the 4 digit LCD, by default, will display the current 
level reading in  metres,  the display  will also  alternate  between the reading 
and “LOE” when a fault condition (Loss Of Echo) is detected.  When in the 
Program Mode the display is used to read information on the Menu Options 
and the values entered.  
 
 
There  are  two  operating  modes  for  your  IMP+
IMP+IMP+
IMP+,  Run  Mode  and  Program 
Mode.  
Run Mode 
This mode is used once the IMP+
IMP+IMP+
IMP+ has been set up in program mode. It is also 
the default  mode that  the  unit  reverts  to  when  it  resumes  operation after  a 
power failure. 
When the  IMP+
IMP+IMP+
IMP+ is switched on for the first  time, it  will display, in metres, 
the distance from the transducer face to the target.  
After programming is  complete,  any relay outputs that  are  set  will  operate 
when the level reaches the relevant setpoint.