Myron-l PS6FCE User Manual download pdf (Page 37)

than 4 hours (longer can deplete the reference solution

and damage the glass bulb). Retest.

If neither method is successful, the sensor must be replaced.

“Drifting” can be caused by a lm on the pH sensor bulb and/or

reference. Use isopropyl alcohol (IPA) or spray a liquid cleaner such

as Windex™ or Fantastic™ into the sensor well to clean it. The sensor

bulb is very thin and delicate. Do not scrub or wipe the pH/ORP sensor.

Leaving high pH (alkaline) solutions in contact with the pH sensor for

long periods of time is harmful and will cause damage. Rinse such

liquids from the pH/ORP sensor well and rell it with Myron L Storage

Solution to extend the useful life of the sensor. If unavailable, you can

use a saturated KCl solution, pH 4 buffer, or a saturated solution of table

salt and tap water, but this should be replaced with storage solution as

soon as possible.

Samples containing chlorine, sulfur, or ammonia can “poison” any pH

electrode. If it is necessary to measure the pH of any such sample,

thoroughly rinse the sensor well with clean water immediately after

taking the measurement. Any sample element that reduces (adds an

electron to) silver, such as cyanide, will attack the reference electrode.

Replacement sensors are available only from the Myron L Company or

its authorized distributors.

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Myron-l PS6FCE User Manual Page 37