TB82PH ATEX Product Instruction Manual  ABB 
16  TB82PH-ATEX-EN-A 
CALIBRATE MODE 
 
Before an instrument can properly measure pH the sensor must be calibrated to the instrument.  Periodic update 
calibrations must be performed during the time the sensor is in service.  The frequency of re-calibration is application 
dependent.  This mode also defines calibration of the temperature input and fine tuning the 4-20 mA output for non-
fieldbus versions. 
 
MEASURE         
 CALIBRATE        
   pH Cal     
       1 Point Calibration   
         Stable? 
         Enter New Value 
       2 Point Calibration   
         Change Temp 
O
C 
         Low Value Buffer 
         Stable? 
         High Value Buffer 
         Stable? 
         PV Slope % 
         PV Offset mV 
   Temperature Cal     
       Enter Temp   
   Edit Calibration     
       Enter Slope   
       Enter Offset   
   Reset Cal     
   Output Cal     
       Adjust 4 mA   
       Adjust 20 mA   
   Back to pH Cal     
 
 
 
 
 
 
 
 
 
 
OUTPUT/HOLD MODE 
 
MEASURE         
 
CALIBRATE        
 
OUT/HOLD       
   
Hold Output     
       Release Hold 
       Hold to XXX% 
   Rerange Output     
       4 mA Point 
       20 mA Point 
   Damping     
       XX.X Seconds 
   Back to Hold Output     
 
Output/Hold screen flow only valid for non-fieldbus versions. 
 
Caution. 
The Reset Calibrate State will reset all 
calibration values; therefore, the process sensor 
and temperature sensor will require calibration 
after performing the Reset Calibrate procedure.