Web: www.tinker-rasor.com E-mail: Info@tinker-rasor.com
QMF-570 101-120
– 2 –
P. O. BOX 1667 SAN BERNARDINO, CA 92402 TEL: (909) 890-0700 FAX: (909) 890-0736
2. OPERATION
1. Remove the vinyl protective cap from the ceramic porous plug.
2. Place ceramic plug in contact with moist soil or water and connect copper rod
assembly terminal of the electrode to appropriate voltmeter.
3. Make connection from the voltmeter to structure under test.
4. Observe polarity and voltage that is usually below two-volt range.
5. Always replace the vinyl cover on the electrode after each usage to prevent
moisture loss in the ceramic plug.
3. SERVICE
Service to your reference electrode is recommended based upon use. If the
reference electrode is used frequently, more than once per week, the instrument
should be serviced on a bi-monthly basis. With less frequent use, service to the
half cell on a bi-annual basis might be more appropriate. If the cell is used only
once or twice per year, it is recommended that the cell be stored dry, with no
water.
1. Removed the porous tip by unscrewing the tip assembly, and set aside.
2. Drain the water from the cell. It is not recommended to save the crystals
during service, unless the cell is being emptied only for storage.
NOTE: Disposal of cupric sulfate crystals varies by locale. Contact your
local sanitation district for disposal information.
3. Unscrew rod holder end, and remove copper rod assembly.
4. Using a common non-metallic abrasive cleaning pad (for use on dishes),
softly buff the copper rod to remove any contaminants and oxidation
residue.
5. Soak all parts in clean, distilled water for 24 hours.
6. Re-assemble, using new crystals and fresh, distilled water.
7. Let reference electrode stand tip down (or lie horizontally) for at least 15
minutes prior to use to saturate porous tip.