7: Chronopotentiometry Models 2450-EC, 2460-EC, and 2461-EC Potentiostats And Galvanostats
7-6 077110402/November 2016
To select the Potential Range:
1. From the Measure Settings window, select Potential Range.
2. Choose a range greater than the highest voltage you expect to measure.
The available potential ranges for the 2450-EC and 2460-EC / 2461-EC are shown in the next figure.
Figure 132: Selecting the Voltage Range
Your instrument will integrate and average the measurement over the Sample Time duration. Longer
sample times will reduce the effect of noise on the measurement.
The Potential measure Range constrains the potential that can develop across the device under test
(DUT). Make sure to choose a range higher than your expected maximum potential. Setting the
Potential Range also sets a potential limit, which can be used to stop the test or otherwise protect
your DUT. Your galvanostat will limit the potential to 105 percent of the selected range.
Now, you will specify the timing of consecutive measurements. This value is the time from the start of
one measurement to the beginning of the next measurement during a particular current step. The
sample interval and sample time settings are related. The sample time can be no more than the
sample interval minus 5 ms (SI - 5 ms). Adjusting the sample interval may also change the sample
time setting automatically.
To set the Sample Interval:
1. From the Measure Settings window, select Sample Interval.
2. Enter a value, then select OK.
Figure 133: Entering the Sample Interval
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