60
• No Slope:
- Check the electrode for cracks in glass stem or bulb
(replace the electrode if cracks are found).
- Make sure cable and connections are not damaged
nor lying in a pool of water or solution.
• Slow Response/Excessive Drift: Soak the tip in
Hanna Instruments solution
HI7061
for 30 minutes, rinse
thoroughly in distilled water and then follow the Cleaning
Procedure above.
• For ORP Electrodes: polish the metal tip with a lightly
abrasive paper (paying attention not to scratch the sur-
face) and wash thoroughly with water.
Note
With industrial applications, it is always recommended to
keep at least one spare electrode handy. When anomalies
are not resolved with a simple maintenance, change the
electrode (and recalibrate the controller) to see if the prob-
lem is alleviated.
