Description
This EIS Plus Corrosion Package includes everything you need to get started with corrosion measurements.
The included instrument is the PalmSens4 which is a USB and battery-powered Potentiostat, Galvanostat, and Electrochemical Impedance Spectroscopy (EIS) analyzer. The PalmSens4 has a large potential range (-10V to 10V) and current range (100 pA to 10 mA) with a high resolution and low noise. This instrument is a complete laboratory instrument but its compact and rugged design makes it also ideal for fieldwork.
EIS Plus Corrosion Package
Create polarization curves, Tafel plots, EIS and more
- Supports all common corrosion techniques
- Includes cell, cables, and handbook
- Includes PalmSens4 potentiostat with EIS up to 1 MHz
PalmSens4 allows for a wide range of corrosion analysis methods; polarization curves to extract the Tafel slopes, corrosion rates, corrosion current, apply a current to the surface for electroplating, deposit films, or force corrosion to happen. Additionally, you can perform EIS (Electrochemical Impedance Spectroscopy) from 0.1 µHz to 1 MHz, which will allow you to extract the coating resistance, the polarization resistance, the pore resistance, the coating capacitance, water uptake of a coating and to estimate the time to failure (TTF). The instrument comes with PSTrace5 software which allows for different corrosion analytical techniques for automatic or manual analysis.
Together with our Corrosion Handbook and the Corrosion Cell Kit, it makes a good combination to get going with electrochemical corrosion studies.
EIS enables the observation of surface property changes, pitting corrosion, water uptake in coatings, estimation of delamination areas, and prediction of time to failure.
Standard included with an EIS Plus Corrosion Package
- Corrosion Cell
- Corrosion Handbook
- PalmSens4
- Rugged carrying case
- High quality, double shielded cell cable with 2 mm banana connectors for Working, Counter, Reference electrode, Sense and Ground
- Crocodile clips
- USB cable
- Manual and Quick Start document
- PSTrace software for Windows
Techniques
Corrosion techniques
- Potentiostatic Polarization
- Galvanostatic Polarization
- Linear Polarization
- Cyclic Polarization
- Corrosion Potential
- Electrochemical Impedance Spectroscopy (EIS)
Voltammetric techniques
- Linear Polarization
- Cyclic Polarization
- Differential Pulse Voltammetry (DPV)
- Square Wave Voltammetry (SWV)
- Normal Pulse Voltammetry (NPV)
- AC Voltammetry (ACV)
- Stripping chronopotentiometry (PSA or SCP)
The voltametric and pulsed techniques can all be used in their stripping modes, which are applied for (ultra-) trace analysis.
Technique as a function of time
- Corrosion Potential Measurement
- Chronoamperometry (CA)
- Pulsed Amperometric Detection (PAD)
- Multiple Pulse Amperometry (MPAD)
- Fast amperometry (FAM)
- Chronopotentiometry (CP)
- Multistep Amperometry (MA)
- Multistep Potentiometry (MP)
- Mixed Mode (MM)
Impedance spectroscopy / EIS
- Potential scan
- Time scan
- Fixed potential
Scans can be made at a fixed frequency or with a frequency scan.
Specifications
| dc-potential range | ±10 V (or ±5 V) * |
| compliance voltage | ±10 V |
| maximum current | ±30 mA (typical) |
| max. acquisition rate | 150,000 data points/s |
* depending on PalmSens4 hardware configuration
| applied dc-potential resolution | 76.3 µV (18-bit ) |
| applied potential accuracy | ≤ 0.1% ±1 mV offset |
| current ranges | 100 pA to 10 mA (9 ranges) |
| current accuracy | ≤ 0.1 % (at Full Scale Range) |
| measured current resolution |
0.005 % of current range (18-bit , 5 fA on 100 pA range) 0.0025% of 10 mA range |
| current ranges | 1 nA to 10 mA (8 ranges) |
| applied dc-current range | ±6 times applied current range |
| applied dc-current resolution |
0.0076% of applied current range (<10 mA) 0.0038% of 10 mA range |
| measured dc-potential resolution |
78.13 μV at ±10 V (gain 1, 18-bit ) 7.813 μV at ±1 V (gain 10) 0.7813 μV at ±0.1 V (gain 100) |
| measured dc-potential accuracy |
≤ 0.05% or ±1 mV (for |E| < ±9 V) ≤ 0.2% (for |E| ≥ ±9 V) |
| frequency range | 10 μHz to 1 MHz (or 10 μHz to 100 kHz) * |
| ac-amplitude range | 1 mV to 0.25 V rms, or 0.7 V p-p |
* depending on PalmSens4 hardware configuration
| frequency range | 10 μHz to 100 kHz (or 10 μHz to 100 kHz) |
| ac-amplitude range |
0.001 × CR to 0.4 × CR (<10 mA) 0.001 × CR to 0.2 × CR (10 mA) (CR = current range) |
| electrometer amplifier input | > 1 TΩ // 10 pF |
| bandwidth | 1 MHz |
| housing | aluminium with rubber sleeve: 15.7 x 9.7 x 3.5 cm³ |
| weight | +/- 500 g |
| temperature range | 0 ºC to + 50 ºC |
| power supply | USB or internal LiPo battery |
| communication | USB and Wirelessly (Dual Mode) |
| battery time |
> 16 hours idle time > 4 hours with cell on at max. current extendable by means of power bank |
| internal storage space |
8 GB or +/- 800000 measurements incl. method info (assuming 200 data points per measurement) |
| analog input | ±10 V, 18-bit  |
| analog output | 0-10 V, 12 bit (1 kΩ output impedance) |
| 4 digital outputs | 0-5 V |
| 1 digital input | 0-5 V |
| i-out and E-out |
raw output of current and potential E-out ±10 V (1 kΩ output impedance) i-out ±6 V (1 kΩ output impedance) |
| power | 5 V output (max. 150 mA) |
Software
PSTrace corrosion mode
- Tafel analysis
- Determine Corrosion Potential and Current
- Circuit fitting
- Determine Corrosion Rate
Tafel plot analysis
Circuit fitting
PSTrace supports Equivalent Circuit Fitting. Drawing your circuit and fitting your data has never been easier. The interface allows you to quickly draw or change the circuit design. The circuit and fitted data are automatically saved with your .pssession data file.
The circuit editor can be used in different modes;
- Edit mode; draw the circuit or type CDC circuit
- Fit mode; fit the EIS data on the circuit
- Simulation mode; run simulations on circuits
Downloads
PSTrace software is shipped as standard with all single channel and multiplexed instruments. The software provides support for all techniques and device functionalities.
Type: Software
Last updated: 08-07-24
Theory and practical advice for corrosion measurements. This handbook explains some basic knowledge of corrosion research with a focus on Linear Polarization Curves and Electrochemical Impedance Spectroscopy (EIS). Furthermore, it should afterward be possible to have a general idea of what can be read from the Tafel plot and the EIS spectrum. Typical shapes of curves and spectra will be shown, to develop some feeling for possible phenomena and indicators.
Type: Documentation
Last updated: 05-06-24
Download PDF
Spectroelectrochemistry
Get more insight into electrochemistry by adding a spectrometer to your potentiostat. This application note describes how to perform spectroelectrochemistry with a PalmSens4 and an Avantes potentiostat.
