#### ### 
 ##   #  
 ##   #  
  ## #   
  ###    
   ##    
         

 _     
| |    
| |    
| |    
| |____
\_____/
       
       

 ______  
(  ___ \ 
| (   ) )
| (__/ / 
|  __ (  
| (  \ \ 
| )___) )
|/ \___/ 
         

 ##      
 ##      
 #####   
 ##  ##  
 ##  ##  
 ##  ##  
 ##  ##  
         

         
         
 #####   
 ##  ##  
 ##  ##  
 #####   
 ##      
 ##      

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
I'm building my own data acquisition system and I want to include Wbo2 logging. I am collecting info on how to control the LSU sensor. I have found a little error in the Wbo2 section. In the Vs amplifier part, the code is Wbo2.nernst_target=0x8d. The first stage gain is, based on the schematic, Uout= 5 - ((5-Vs) x 4.6). For our application, we have 5-((5-4.45) x 4.6) = 2.47V => 0x7E and not 0x8D like in the code ?!?!?!?!?!? An other thing I can't understand: How do you calculate the real Ip in the sensor only, whithout knowing the sensor's resistance. A part of the current generated by the OPA is flowing also in the 10k resistor. With my sensor, I measure 4.7V at pump+ => 0.7/10000 = 70uA. Compared to Ipumptotal = 3.64mA : 0.07/3.64 = 1.9% error ?!?!?!?!?!?!? May be I am wrong ???? Where can I find the table lambda=f(Ip) ????
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.