user manual

Input Calibration
148 UDA2182 Universal Dual Analyzer Product Manual January 2009
8.5.4 Sample Method of Calibrating pH Electrodes
Recommended where pH is stable, or for high-purity water applications
This method is recommended only where the pH is stable and changes very slowly. It is
also recommended for high-purity water measurement applications. Special instructions
for high-purity water applications are provided below.
Materials
To use the sample method, follow the instructions in Table 8-4.
Materials required are:
• A clean beaker for collecting the sample.
• A calibrated portable instrument for measuring pH of the sample.
• Distilled or de-ionized water to rinse the electrode.
Procedure
Make sure you have selected “PV Type –pH Glass, pH Durafet, or pH HPW” in the Inputs
configuration - Table 6-5.
Refer to Section 6.4.1 –
General Rules for Editing.
Table 8-4 Procedure for Sample Method of Calibrating pH Electrodes
Step Action Screen
1
Prepare the Calibration meter.
2
Press
Calibrate
CALIBRATION
Input Temp Cal
Output Cal
Cal History
Input PV Cal
CALIBRATION
Input Temp Cal
Output Cal
Cal History
Input PV Cal
Use
to select
Input PV Cal
3
Press
Enter
PV INPUT CAL
In 1 pH/ORP Cal
In 2 Conduc Cal
PV INPUT CAL
In 1 pH/ORP Cal
In 2 Conduc Cal
Use
to select
Input 1 or 2 pH/ORP Cal