General Electrode Care; Cleaning The Electrode - Pentair ChemCheck Installation And Service Manual

8

General Electrode Care

• Keep electrode tip wet at all times. Always store the
electrode in the provided protective bottle.
• Do not drop or subject electrode to unnecessary
vibration.
• Electrode maximum operating pressure is 25 psi
(1.7 bar). Extreme pressure variances may distort
readings and can damage the electrode.
• Never operate the ChemCheck during freezing
conditions. Refer to Winterizing, page 9 for
winterization and storage instructions.
• Every two weeks: Inspect electrode for scratches,
cracks and chemical or mineral buildup. To remove
chemical or mineral buildups, refer to Cleaning the
Electrode.

Cleaning the Electrode

The electrode tip must be clean and free of oils,
chemical/mineral deposits and other contamination
in order to function properly. A dirty or contaminated
electrode tip will result in slow response and inaccurate
readings.
Monthly cleaning is recommended. However, more
frequent cleanings may be required due to high bather
loads or other variables.
The glass electrode tip is very fragile and must be
handled with care. Follow the instructions below to
properly clean the electrode.
TO CLEAN THE ELECTRODE:
1. Ensure all power to the filtration pump is turned
OFF at the circuit breaker. This will prevent
unexpected start-ups during servicing.
2. Ensure both ChemCheck flow valves are closed.
3. Remove the top cover from ChemCheck.
4. Disconnect the Electrode Connector (1).
5. Carefully unscrew Electrode (2) counter-clockwise
and gently remove it from cell reservoir.
6. Using a soft-bristled toothbrush and a solution of
liquid detergent and water, gently scrub electrode
tip.
Do NOT touch the exposed electrode tip. Oils
or other contaminants from your hands may
damage the sensing element and/or lead to incorrect readings.
Do NOT use excessive force or abrasive
materials when cleaning the electrode. This
will damage the electrobe.
7. Thoroughly rinse away the detergent and any
loose contaminants.
CHEMCHECK™ Water Quality Monitor Install and Service Guide
8. If contaminants are still visible, soak the electrode
tip in a 1% solution of muriatic acid & water for 30
minutes.
Muriatic acid is corrosive and can lead to
inflammation or burns to body tissue. ALWAYS
follow manufacturer instructions when handling
acid.
9. Thoroughly rinse away the acid solution and any
loose contaminants.
10. Carefully reinsert the electrode into the cell
reservoir and hand tighten.
Note: The electrode is sealed by an o-ring. Ensure
this o-ring is in place.
HAND TIGHTEN ONLY! Over tightening the
electrode may damage the electrode.
The electrode tip MUST be kept wet.
Allowing it to dry for a prolonged period of time
will damage the electrode tip. Reinstall the electrode immediately
after cleaning or, if necessary, store the electrode in the provided
protective bottle until it can be reinstalled.
11. Reconnect the Electrode Connector to electrode
terminal and hand tighten.
12. Reinstall the top cover.
13. Open both ChemCheck flow valves.
14. Allow the electrode to re-adjust for a minimum of
four hours.
1
2
Valve CLOSED
Figure 9
Valve CLOSED