16
EC Cell cleaning and Inspection
1. On a weekly basics, rinse the probe with tap water as preventative maintenance. Monthly,
a more thorough cleaning is advised. Clean the EC sensor (slot in bottom of probe) with a
non‑abrasive detergent, or see #4 below.
2. Inspect the slot in the bottom of the
HI1285‑8
. It should be free of foreign material.
3. If any solids are detected in the slot, use a soft material such us cardboard, to dislodge the
material. Pass the material through the slot repeatedly.
4. A salt or mineral coating can be removed by rinsing it with a steam of running tap water
and jetting the steam through the opening. During pH cleaning, the EC probe will also be
exposed to pH cleaning solutions. This solution will also help dissolve coating on the EC
sensors. Rinse the slot thoroughly with water after this procedure, as it is extremely
conductive.
5. Shake excess water from the probe.
6. Recalibrate: Place the probe tip into the EC calibration standard. Wait for the reading
to stabilize as the probe equilibrates to the temperature of the solution. Press GLP and note
the Cell coefficient.
GENERAL OPERA
TIONS