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Chapter 4 | Calibration
4.1.3 pH Calibration Example
The following is an example of a three point pH calibration
using auto-recognized pH 4.01, 7.00 and 10.01 pH
buffers. The pH buffers can be read in any order. For this
example, pH buffers are read lowest to highest.
Press the “Cal” key to start the pH calibration. The
active Calibration Buffer Set is shown.
Rinse the pH electrode and ATC probe and place
into the pH 4.01 buffer.
Wait for the pH value to stabilize.
a.
When the reading is unstable, the stopwatch
icon is shown and the reading flashes.
b.
When the reading is stable, the checkmark icon
is shown and the reading is solid.
Once the reading is stable, press the “Enter” key.
The meter will save the first calibration point and
proceed to the next calibration point.
Rinse the pH electrode and ATC probe and place
into the pH 7.00 buffer.
Wait for the pH value to stabilize.
a.
When the reading is unstable, the stopwatch
icon is shown and the reading flashes.
b.
When the reading is stable, the checkmark icon
is shown and the reading is solid.
Once the reading is stable, press the “Enter” key.
The meter will save the second calibration point and
proceed to the next calibration point.
Rinse the pH electrode and ATC probe and place
into the pH 10.01 buffer.
Wait for the pH value to stabilize.
a.
When the reading is unstable, the stopwatch
icon is shown and the reading flashes.
Содержание Orion Lab Star PH111
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