0
Refillable Ag/AgCl pH Electrode User Guide
Electrode Calibration
General Calibration Procedure
For detailed instructions on pH calibration, manual pH calibration
and temperature compensation, consult your meter user guide.
When using PerpHecT electrodes with a PerpHecT pH meter,
refer to the PerpHecT meter user guide for instructions on
temperature calibration and LogR temperature compensated
pH measurements.
One Buffer Calibration
1. Choose a buffer near expected sample pH.
2. The buffer should be at same temperature as the sample.
If the buffer and samples are at varying temperatures,
temperature compensation is recommended.
3. Prepare the meter according to the meter user guide.
4. Rinse the electrode first with distilled water and then with
the buffer being used for calibration.
5. Place the electrode into the buffer. When the reading is
stable, set the meter to the pH value of the buffer at the
measured temperature. Refer to the meter user guide for a
detailed procedure.
Table 1
provides pH values at
various temperatures.
6. Proceed to the
pH Measurement
section.
Table 1
pH Values of Buffers at Various Temperatures
Nominal
Buffer Value
at 25°C
Temperature
0 °
5 °
10 °
20 °
30 °
1.68
1.67
1.67
1.67
1.67
1.68
3.78
3.86
3.84
3.82
3.79
3.77
4.01
4.00
4.00
4.00
4.00
4.02
6.86
6.98
6.95
6.92
6.87
6.85
7.00
7.11
7.08
7.06
7.01
6.98
7.41
7.53
7.50
7.47
7.43
7.40
9.18
9.46
9.40
9.33
9.23
9.14
10.01
10.32
10.25
10.18
10.06
9.97
Summary of Contents for 9101BN
Page 1: ...User Guide Refillable Ag AgCl pH Electrodes...
Page 2: ......
