YSI YSI 556 MPS, Set-Up, Operation & Calibration

Page: 63 / 68

Conductivity / Temperature
•
The single most important requirement for accurate and reproducible results in
conductivity measurement is a clean cell. A dirty cell will change the conductivity of a
solution by contaminating it. The small cleaning brush included in the YSI 5511
Maintenance Kit is ideal for this purpose.
To clean the conductivity cell:
•
Dip the brush in clean water and insert it into each hole 15-20 times.
•
Rinse the cell thoroughly in deionized or clean tap water.
•
NOTE: In the event that deposits have formed on the electrodes, perform the
following additional procedure:
•
Use a mild detergent solution in combination with the brush. Dip the brush in the
solution and insert it into each hole 15-20 times.
•
Rinse the cell thoroughly in deionized or clean tap water.
•
NOTE: After cleaning, check the response and accuracy of the conductivity cell with
a calibration standard.
•
The temperature portion of the sensor requires no maintenance.