OCP
Open Circuit Potential
Measure the equilibrium potential of the working electrode with no external current applied.
Typical use. Monitor corrosion rates, confirm electrode stability, set starting conditions.
ECA-LP1ECA-5MECA-500kECA-Zero
Every technique, built in
Voltammetry, chronometry, impedance, and open-circuit modes ship on every ECA. What each technique does, and which instrument you need to run it.
Which instrument runs what.
| Technique | LP1 | 5M | 500k | Zero |
|---|---|---|---|---|
| OCPOpen Circuit Potential | ✓ | ✓ | ✓ | ✓ |
| CVCyclic Voltammetry | ✓ | ✓ | ✓ | ✓ |
| LSVLinear Sweep Voltammetry | ✓ | ✓ | ✓ | ✓ |
| CAChronoamperometry | ✓ | ✓ | ✓ | ✓ |
| CPChronopotentiometry | ✓ | — | — | — |
| EISElectrochemical Impedance Spectroscopy | ✓ | ✓ | ✓ | — |
| SWVSquare Wave Voltammetry | ✓ | ✓ | ✓ | ✓ |
| DPVDifferential Pulse Voltammetry | ✓ | ✓ | ✓ | ✓ |
CP and gEIS require galvanostat mode (LP1 only). EIS requires the impedance analyser front-end (LP1, 5M, 500k).
Potential
LSV
Linear Sweep Voltammetry
Sweep the potential in one direction while recording current.
Typical use. Kinetic studies, Tafel analysis, polarization curves.
ECA-LP1ECA-5MECA-500kECA-Zero
CA
Chronoamperometry
Hold potential at a fixed value, record current versus time.
Typical use. Measure diffusion coefficients, calibrate sensors, study fast kinetics.
ECA-LP1ECA-5MECA-500kECA-Zero
CP
Chronopotentiometry
Hold current at a fixed value, record potential versus time.
Typical use. Battery cycling, corrosion studies, galvanostatic plating experiments.
ECA-LP1
EIS
Electrochemical Impedance Spectroscopy
Apply a small AC perturbation across a range of frequencies, measure impedance.
Typical use. Characterise interfaces, coatings, double layers, and fuel-cell / battery stacks.
ECA-LP1ECA-5MECA-500k
SWV
Square Wave Voltammetry
Superimpose a square wave on a staircase ramp, sample current at pulse peaks.
Typical use. Analytical electrochemistry with very low detection limits.
ECA-LP1ECA-5MECA-500kECA-Zero
DPV
Differential Pulse Voltammetry
Short potential pulses on a linear ramp; current sampled before and after each pulse.
Typical use. Trace-level detection of electroactive species in biology and sensing.
ECA-LP1ECA-5MECA-500kECA-Zero
Full in-depth tutorials are rolling out technique by technique. CV is live; the rest follow.
Missing a technique?
Most additions are firmware updates over USB. Tell us what you need to measure and we can check what the hardware supports.