Page 160 
P802 Display Offset 
The value of this parameter is added to the reading before it is displayed, in 
Measurement Units (P104). 
It does not affect the relay setpoints or the mA output, only the reading on 
the display. 
You  could  use  this  feature  if  for  example  you  wanted  to  reference  the 
reading to sea level, where you would enter the distance  between  Empty 
Level (P105) and sea level. If the empty level point is below sea level, then 
enter a negative value. 
P804 Display Conversion 
The  reading  is  multiplied  by  the  value  of  this  parameter  before  being 
displayed. The default is 1.0, but if for example you wanted to display the 
reading in yards, then set the Measurement Units (P104) to feet, and set 
P804 to 3. 
 
Failsafe 
P808 Fail-safe Mode 
By default, if a fail-safe condition occurs, then the display, relays and the 
mA  output  are  held  at  their  last  known  values  until  a  valid  reading  is 
obtained. 
If required, then you can change this so that the unit goes to high (100% of 
span), or low (empty) as follows: 
Important Information 
In the event of a fail-safe condition occurring, the display, relays and mA 
Output can be configured to fail to a condition which is independent of each 
other. To set independent Relay Failsafe see P218 (RL1), P228 (RL2), 
P238 (RL3). And for independent mA Output Failsafe see P840.