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P1-804, P2-804 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 (P*104) to feet, and set 
P1-804, P2-804 to 3. 
P1-805, P2-805 Display Source 
This parameter determines which point(s) of measurement the display will 
relate to.  
Displays Point 1 calculated values in chosen 
Measurement Units. 
Displays Point 2 calculated values in chosen 
Measurement Units. 
Displays calculated average values of Point 1 & 2 
in chosen Measurement Units. 
Displays calculated sum values of Point 1 + 2 in 
chosen Measurement Units. 
Displays calculated differential values of        Point 
1 - 2 in chosen Measurement Units. 
Important Information 
When the display is to be used to show the value of the average, differential or 
sum of two points of measurement, then both points must be set to the same 
units of measurement. In the case of flow (P1-100 and P2-100 are set for 4 
(OCM Head) or 5 (OCM Flow), then P1-706, P2-706 (Volume Units) & P1-
707, P2-707 (Time Units) must be the same.  In case the of Volume then      
P1-100 and P2-100 are set for 6 (Volume) then P1- 605, P2-605 (Volume 
Units) must be the same.