Hanna Instruments GROLINE HI981421, Инструкция по эксплуатации

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EC Cell cleaning and inspection
1. As preventative maintenance measure, rinse the probe with tap water on a weekly basis.
Monthly, a more thorough cleaning is advised. Clean the EC sensor (slot in bottom of probe)
with a non‑abrasive detergent, or, alternatively, refer to cleaning step 4 below.
2. Inspect the slot at the bottom of the probe . It should be free of foreign material.
3. If any solids are detected in the slot, use a soft material such as cardboard, to dislodge the
material. Pass the material through the slot repeatedly.
4. Salt or mineral coating can be removed by rinsing it under a stream of running tap water and
jetting the stream 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 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