Measurement Specialties 9116 User Manual

Pressure Systems, Inc.                                                                                        Model 9116 User’s Manual 
 
 

 

Page 36 

 

www.PressureSystems.com 

 
This sub-command has no additional parameters.  

“

C 02” 

 
‘C’  is the command letter. 
‘ 02’ is the sub-command index (ii) for Calculate & Apply 
 
NOTE: all parameters are separated by a space. 

“A” 
 
‘A’ is the acknowledge letter — returned if the required number of 
calibration data points had their data successfully collected previously, and 
the resulting calculated data is reasonable.  Else, an error (‘N’) response is 
returned. 

 
 
Description:  This sub-command finishes the Multi-Point Calibration function, previously  
 

 

  started by the Configure & Start (‘00’) sub-command.  It calculates new  

 

 

  correction coefficients using the pressure data collected by all required  

  

 

executions 

of 

the 

Collect Data (‘01’) sub-command.  

 

  All the averaged data points collected previously are checked for  
  reasonableness, and then a new set of zero and gain correction coefficients are  
  calculated by the least-squares method for each channel (transducer) affected by  
  the calibration.  These are stored in the module’s volatile memory for use by all  
  subsequent EU data conversion of these channels until the module is reset or  
  powered off.  These coefficients may be stored in the non-volatile memory of the  
  module’s transducers with the ‘w’ command (see indexes 08 and 09 for that  
  command). The latest calculated zero and gain coefficients may be inspected  
 with 

the 

‘u’ command at any time for any channel. 

 
 

Finally, this sub-command restores the original “A/D samples for averaging”  

 

count used by the module’s data acquisition process to the value that was in use  

 before 

the 

Multi-Point Calibration function was originally started.