Cleaning Recommendations - Extech Instruments ExStik EC505 User Manual

Cleaning Recommendations

When cleaning the probe, take care not to scratch or damage the sensing surface or the platinized
electrode surfaces.
Contaminant
Water soluble substances
Grease & Oil
Heavy grease & Oil
Lime and hydroxide coatings
Please Note: Since the EC500 does not have a refillable pH reference electrolyte chamber, it is
important not to soak the electrode in the above solutions for more than the recommended times. To
do so may cause a reference potential shift, which will cause degradation in performance or failure.
Cleaning Solution
Deionized water
Warm water and household
detergent
Alcohol
10% acetic acid
12
Instructions
Soak or scrub with a soft brush.
Recondition in 4 or 7 buffer for
1 hour.
Soak or scrub with a soft brush,
maximum of 10 minutes. Rinse
thoroughly with DI water,
recondition in 4 or 7 buffer for 1
hour.
Maximum of 5 minute soak,
scrub with a soft brush. Rinse
thoroughly with DI water,
recondition in 4 or 7 buffer for 1
hour.
Soak until coating dissolved,
maximum of 5 minutes. . Rinse
thoroughly with DI water,
recondition in 4 or 7 buffer for 1
hour.
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