Section 5: Current Pulse and Square Wave
Models 2450-, 2460-, & 2461-EC Potentiostats And Galvanostats User's Manual
5-2
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 Current Pulse and Square Wave test application parameters are listed below:
Model 2450-EC
•
Peak current: -
1.05 A ≤ Ipeak ≤ +1.05 A
•
Base current: -
1.05 A ≤ Ibase ≤ +1.05 A
•
Potential measure ranges: 20 mV, 200 mV, 2 V, 20 V
•
Source limit (compliance): 105 % of selected potential range
•
Pulse period and width:
•
| Ipeak | and | Ibase | ≤ 1.05 μA
•
200 ms ≤ period ≤ 3600 s
•
100 ms ≤ pulse width ≤ (0.99 × period)
•
| Ipeak | or | Ibase | > 1.05 μA
•
4 ms ≤ period ≤ 3600 s
•
2 ms ≤ pulse width ≤ (0.99 × period)
•
Sample time:
•
Minimum is 166.667 µs
•
Maximum is lesser of 166.667 ms and (pulse width - 1 ms)
•
Number of cycles: 1 to 100,000
•
Program time: (1 × period) ≤ program time ≤ (100,000 × period)
Models 2460-EC and 2461-EC
•
Peak current: -
7.35 A ≤ Ipeak ≤ +7.35 A
•
Base current: -
7.35 A ≤ Ibase ≤ +7.35 A
•
Potential measure ranges: 200 mV, 2 V, 7 V, 10 V, 20 V
•
Source limit (compliance): 105 % of selected potential range
•
Pulse period and width:
•
| Ipeak | and | Ibase | ≤ 105 μA
•
80 ms ≤ period ≤ 3600 s
•
40 ms ≤ pulse width ≤ (0.99 × period)
•
| Ipeak | or | Ibase | > 105 μA
•
10 ms ≤ period ≤ 3600 s
•
5 ms ≤ pulse width ≤ (0.99 × period)
•
Sample time:
•
Minimum is 166.667 µs
•
Maximum is lesser of 166.667 ms and (pulse width - 1 ms)
•
Number of cycles: 1 to 100,000
•
Program t
ime: (1 × period) ≤ program time ≤ (100,000 × period)
