Table of Contents
Advertisement
5. Put the probe in
the first pH buffer
solution. Make sure
that the sensor and
reference junction
are fully in the
solution. Do not put
the probe on the
bottom or sides of
the beaker.
9. Save the
calibration.
Section 6 Sample measurement
The procedure that follows is applicable to meters that can connect to Intellical pH probes. Refer to
the applicable meter documentation for meter operation and probe-specific settings.
6.1 Sample requirements
Make sure that the sample type is compatible with the probe, or probe damage can occur.
• Samples must be aqueous. The probe can also make measurements in samples that are not fully
aqueous and in some solvents that dissolve in water. Read the results with caution because the
pH scale changes when the solvent system changes.
• Do not use the probe to measure samples that contain components that react with silver (e.g.,
TRIS, proteins and sulfides). To measure in such samples, use a double junction probe, a probe
+
with an Ag
(silver ion) barrier or a Red Rod probe.
• Proteins can collect on the sensing element. Make sure that the probe stays clean if proteins are in
the sample.
• Do not measure samples that are hotter or colder than the specified operating temperature of the
probe. Refer to
Specifications
8 English
6. Shake the probe
from side to side to
refresh the reference
junction and remove
air bubbles.
Note: Be careful to not
hit the beaker and
damage the probe.
N O T I C E
on page 3.
7. Stir slowly, then
read the pH value of
the buffer solution.
The display shows
the temperature-
corrected pH value
when the reading is
stable.
8. Continue with
steps
4
through
7
for
the remaining
buffers or select
Done.
Advertisement
Table of Contents
