Nova-Tech pH-CON 10 - Manual (Page 21)

Instruction Manual PC 10
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7 . P R O B E C A R E A N D M A I N T E N A N C E
Under typical operating conditions, the probe will need to be replaced every 6 to 12
months. In extreme applications, the probe may wear out sooner. Proper care and
maintenance will help you receive the maximum probe life and ensure more accurate
readings.
Keep the probe clean. Before use, rinse the probe twice. Be sure to remove the protective
cap of the pH probe before use and always immerse the probe beyond the electrode band.
For the best accuracy, soak your probe in electrode storage solution, pH 4.0 buffer, or tap
water for at least 5 to 10 minutes before calibration.
Gently stir the probe in the solution while you take readings. Tap the probe gently against the
bottom and sides of your container to remove any air bubbles, which may interfere with
accuracy.
Clean the probe thoroughly by immersing it in an agitated mild detergent bath. To clean the
conductivity cell, remove the plastic sleeve and use a cotton swab soaked in isopropyl alcohol
to clean the steel pins. Wipe the steel pins if needed with soft tissue paper. Replace the
sleeve which is necessary for calibration and measurement. DO NOT wipe the pH bulb as it
may cause static build-up. After cleaning the probe, rinse the probe well with clean water.
Recalibrate the meter after cleaning the probe.
Do not strike the probe against any hard surface. Do not immerse the probe in oily solutions.
Store the probe in its cap filled with electrode storage solution. To order a replacement probe
and other accessories, see “Accessories” section on page 21 .
http://www.novatech-usa.com/Products/Laboratory-Equipment-Supply-Products Tel: (281) 359-8538 Toll Free:(866) 433-6682