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Calibration
After you have run the system checkout procedure(s), you should calibrate each PCI4 Potentiostat installed in
your system. A calibration script is provided with the Gamry Framework. The Installation Manual for every
major application package contains instructions for calibration using this script.
CAUTION: PCI4 calibration calls for an external resistive dummy cell. PCI4s are provided with a
Universal Dummy Cell 4 which includes a 2 kΩ Ω Ω Ω , 0.05% accurate resistor in the position marked
"Calibration". After calibration, please place this dummy cell in a safe place where you can find it
if your unit requires recalibration.
If you do need to recalibrate and you cannot find the resistor shipped to you, you can substitute
another 2 kΩ Ω Ω Ω resistor. Its wattage is unimportant. Some performance checks in the calibration
process may fail if the resistors inaccuracy exceeds 0.1% (2 Ohms).
Potentiostat calibration is only required infrequently. You should recalibrate under the following circumstances:
You are installing a PCI4 Potentiostat into a new computer or moving a PCI4 into a different
•
computer. The PCI4 should be calibrated in the new machine.
It has been about one year since your last calibration.
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Your potentiostat has been serviced.
•
You notice breaks or discontinuities in the data curves recorded with your system.
•
You have lost or replaced your "GAMRY5.INI" file.
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Chapter 2 -- Installation -- Calibration
Figure 2-8
UDC4 With Leads Attached for Calibration
2-11
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