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News: 

TNA0916 

       Date: 

March 

18, 

2009 

10.) Once the reading has stabilized, the main 
display will lock onto the reading and store it in 
memory. Press the diamond next to Calibration 

complete

 

 

 

 

 
 
 

11.) To have the analyzer finish and accept 
calibration data press the diamond next to 
Accept Data 
 
 

 
 
 
 

 
 
12.) The analyzer will automatically return you to 

the original Calibration screen. To return to main 
operating mode press the house icon to return 
to the main screen.  
 
 

 
 
 
 

 
 
 
 
 

 
 
 
 

 
 

Summary of Contents for PH450

Page 1: ...traceable buffers are used and the default values in the preprogrammed Buffer Tables have not been changed an error of 14 pH 7 00 6 86 14 will occur To eliminate this situation either pure NBS buffers should be used or the Buffer Tables in the instrument should be reprogrammed to match the values of the buffers being used For further information regarding NBS vs NBS Traceable buffers refer to the ...

Page 2: ...ration Wash select it 3 Next selected the diamond next to Automatic zer slope 4 On the following screen in the box at the bottom use the scroll key to select the 6 9 buffer 5 The main display will start flashing and continues to flash until the reading has stabilized for 5 seconds and does not change by more than 02 pH units ...

Page 3: ...7 00 buffer and rinse it thoroughly in deionized water then blot the electrodes to remove any excess water Immerse the electrode assembly in a sample cup of 4 buffer solution 8 On the following screen in the box at the bottom use the scroll key to select the 4 0 buffer 9 The main display will start flashing and continues to flash until the reading has stabilized for 5 seconds and does not change b...

Page 4: ...ore it in memory Press the diamond next to Calibration complete 11 To have the analyzer finish and accept calibration data press the diamond next to Accept Data 12 The analyzer will automatically return you to the original Calibration screen To return to main operating mode press the house icon to return to the main screen ...

Page 5: ... the Main screen press the I icon in the circle The following screen will pop up press the diamond next to NEXT Then the data screen will appear The zero is the AS the slope is the SL and the impedance 2 is the impedance of the reference junction The sensor mV reading is a continuous reading of what the sensor is seeing in normal measureing mode To return to normal measureing mode press the house ...

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