Section 6: Chronoamperometry
Models 2450-EC, 2460-EC, and 2461-EC Potentiostats And Galvanostats User's Manual
6-2
077110402/November 2016
Test application parameters
You must enter test parameters that are consistent with the following values. Otherwise, you may
receive unsettled and inaccurate measurements.
The Chronoamperometry test application parameters are listed below:
Model 2450-EC
•
Step potential: -
20 V ≤ Estep ≤ +20 V
•
Current measure ranges: 10 nA, 100 nA, 1 μA, 10 μA, 100 μA, 1 mA, 10 mA, 100 mA, 1 A
•
Source limit (compliance): 100 % of selected current range
•
Number of steps: 1 to 10
•
Step duration: 10 ms ≤ step duration ≤ 99,999 s
•
Sample interval: 10 ms ≤ sample interval ≤ 100 s
•
Sample time:
•
Minimum is 166.667 µs
•
Maximum is lesser of 166.667 ms and (sample interval - 5 ms) and (step duration - 5 ms)
•
Maximum number of samples: 100,000 total for all steps
Models 2460-EC and 2461-EC
•
Step potential: -
20 V ≤ Estep ≤ +20 V
•
Current measure ranges: 1 μA, 10 μA, 100 μA, 1 mA, 10 mA, 100 mA, 1 A, 4 A, 5 A, 7 A
•
Source limit (compliance): 100 % of selected current range
•
Number of steps: 1 to 10
•
S
tep duration: 10 ms ≤ step duration ≤ 99,999 s
•
Sample interval: 10 ms ≤ sample interval ≤ 100 s
•
Sample time:
•
Minimum is 166.667 µs
•
Maximum is lesser of 166.667 ms and (sample interval - 5 ms) and (step duration - 5 ms)
•
Maximum number of samples: 100,000 total for all steps
Run the Chronoamperometry test application
To run the test application:
1. Press the
HOME
key.
2. Select the active script indicator at the top of your home screen. If there is no script activity, the
indicator displays "No Script."
Figure 105: Active script indicator
