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Data Log Parameters 
The data log parameters contains the following information. 
Totaliser Audits 
P1 or P2 
When P1-100, P2-100 = 4 (OCM Head) or 5 (OCM Flow) 
P1-460 to 479, P2-460 to 479 Total Audits 
The  Ultra  Twin  can  give  independent  Totaliser  Audits  for  each  point  of 
measurement when the Mode, (P1-100 or P2-100), selected is OCM Head 
or Flow. Parameters P1-460, P2-460 to P1-479, P2-479 show the date and 
daily flow total for the last ten days, the first on the list are the most recent 
and last ones are the oldest. When all ten total audits are full the oldest is 
pushed out and all totals increment through to allow the new days total to be 
registered in the first days total audit parameter allocation.  
Important Information 
In order to ensure the accuracy of Flow during a 24 hour period, ensure that 
the Time P*932 is set correctly. And if required, enable Daylight Saving 
for the appropriate time difference P*970 – P*979.  
 
 
P1-480, P2-480 Clear Logs 
This parameter enables  all of the Total Audits (P1-460 to 479, P2-460 to 
479) to be cleared to factory default values. 
Temperature 
P1 or P2 
The following parameters give information on temperature conditions, for 
each point of measurement, as seen by the Temperature source (P1-852, 
P2-852) in ºC. All of these parameters are read only and cannot be changed, 
though if P1-852, P2-852 are changed they will be reset. 
P1-580, P2-580 Minimum Temperature 
This parameter displays the minimum temperature recorded. 
P1-581, P2-581 Minimum Temperature Date 
This  parameter  displays  the  date  when  the  minimum  temperature  was 
recorded.