Manual


B. 
To minimize your calibration effort, keep records. If adjustments you
are making are minimal for your application, you can check less often.
Changes in conductivity calibration should be recorded in percent.

Calibration is purposely limited in the Ultrameter II to
±
10% for the
conductivity cell, as any change beyond that indicates damage, not
drift. Likewise, calibration changes are limited to
±

any change beyond that indicates the end of the sensor’s lifetime and
replacement is recommended.
C. 
 
with foaming cleaner or mild acid. Do not scrub inside the cell.
 Calibrate with solutions close to the measurements you make.
 
of solution. If you choose to measure tap water with a KCl
 
different solution selections and the resulting compensation,
 
 
 
temperature changes more than the instrument’s accuracy.
 
Allowing slow dissolving crystals to form in the cell
contaminates future samples.
4. For maximum accuracy, keep the pH sensor cap on tight so
 
D. 
1. Keep the sensor wet with Myron L Storage Solution.
 
     
±
   
              
precision electronics for detection, the Ultrameter II delivers better
accuracy without calibration than a simpler instrument could using
calibration solutions.