6.5 PH60F Flat probe testers are mostly for flat surface sample test.
• For skin test: skin should be without sweat or dirt, nor be overly cleaned (do not use
facewash products before testing) to avoid affecting measurement results, dampen skin
with some distilled water, slightly force flat probe onto the skin, get readings after value
stabilized.
• For paper, fabric, leather and other surface test: add 1~2 drops of distilled water on
surface, then perform measurements.
6.6 Special Notes
a) The pH probe must be rinsed thoroughly after each use. Warm soap water can be used to
clean off grease or other contaminants.
b) The PH60 series testers are not designed for testing low ion-concentration liquid such
as distilled or deionized water. To get a good measurement of these liquid, users need
to use a specialized meter such as PH850-PW (AI5541). Contact us at info@aperainst.com
for more details.
c) When testing drinking water or RO water, it might take longer for the readings to get fully
stabilized (typically 2-5 minutes).
d) Do NOT store probe in distilled or deionized water because those low ion-concentration
liquids could damage the pH electrode. They are only recommended for rinsing the probe.
7 Parameter Setting
7.1 Setup Menu
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