8
b. Every time after measuring the strong acidic solution
(pH<2) or strong alkaline solution (pH>12);
c. Every time after measuring a fluoride solution or strong
organic solution;
d. The temperature of the solution varies greatly from the
temperature of the calibration solution.
B. Because accurate pH levels in the buffer solutions are critical to
accurate pH measurement, to ensure correct pH meter calibration
replace each buffer solution after several uses.
C. The electrode should be cleaned with distilled water and allowed to air
dry before and after each use and before storing.
Note: Do not use facial tissue to dry the electrode as the
electrode electric potential can be destabilized and the electrode
will function slowly or improperly. If necessary, a chemical
solvent can be used after taking a pH measurement and before
cleaning with distilled water.
D. Regular cleaning and maintenance is important to maintaining the
accuracy and prolonging the lifespan of your Rapid RH
®
Portable pH
Meter. For daily maintenance, gently wash the electrode with diluted
water and allow to air dry before each use and before storing. For
specific cleaning situations of the electrode and glass ball, see section
9B for further cleaning options. The electrode shell is made of
Makrolon® and should be washed often. DO NOT use carbon
tetrachloride, trichloroethylene, tetrahydrofuran, or acetone to clean
the electrode shell as these chemicals will dissolve the Makrolon®
shell.
E. Although the pH electrode’s standard life is one year, this lifespan may
be shortened by inappropriate use or storage. After one year,
replacing the pH electrode is strongly recommended to maintain
accuracy during pH measurements.
To Next Page
Loading...
Need help?
General
