User Guide

106
- 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 Solu-
tion HI 7061 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 abra-
sive paper (paying attention not to scratch the surface)
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 elec-
trode (and recalibrate the controller) to see if the problem is
alleviated.