EIS Corrosion Package

This EIS corrosion package includes everything you need to get started with corrosion measurements.

The included instrument is the EmStat4S HR, which is a small research-grade potentiostat. The EmStat4S HR supports all common electrochemical techniques used for corrosion analysis. These techniques include Electrochemical Impedance Spectroscopy (EIS), Potentiostatic Polarization, Linear Polarization, Cyclic Polarization, Corrosion potential measurements as well as applying a constant potential and measuring the open circuit potential (EOC). It has a wide range of current ranges and supports a maximum currrent up to 200 mA for determining corrosion rates. 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.

Electrochemical Impedance Spectroscopy (EIS)

EIS allows observing: changes on surface properties, pitting corrosion, water uptake of a coating, estimation of delamination area and estimation of time to failure

Standard included with an EIS Corrosion Package

• Corrosion Cell

• Corrosion Handbook

• EmStat4S HR

• 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

• PSTrace software for Windows

The included EmStat4S supports :

Corrosion techniques

• Potentiostatic Polarization

• Galvanostatic Polarization

• Linear Polarization

• Cyclic Polarization

• Corrosion Potential

• Electrochemical Impedance Spectroscopy (EIS)

• Zero Resistance Ammeter (ZRA)

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)*

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)

Impedance spectroscopy (EIS/GEIS*) :

• Potential scan

• Time scan

• Fixed potential

Scans can be made at a fixed frequency or with a frequency scan. Stripping modes The voltametric and pulsed techniques can all be used in their stripping modes which are applied for (ultra-) trace analysis.

Software update Techniques marked with an asterisk* will become available with the next software update.

Specifications of the included potentiostat EmStat4S HR

Potential range : ±6 V

Max. compliance voltage : ±8 V

Current ranges : 100 nA to 100 mA (7 ranges)

Max. current : ±200 mA

Electrode connections : WE, RE, CE, S, and ground,

2 mm banana plugs General

dc-potential range : ±6 V

compliance voltage : ±8 V

maximum current : ±200 mA

max. data acquisition rate : 1,000,000 samples /s Potentiostat

applied potential resolution : 183 µV

applied potential accuracy : ≤ 0.2% ±1 mV offset

current ranges : 100 nA to 100 mA (7 ranges)

measured current resolution : 0.009% of CR (92 fA on 1 nA range)

measured current accuracy : ≤ 0.2% at Full Scale Range

Galvanostat

current ranges : 1 uA, 100 uA, 10 mA, 100 mA (4 ranges)

applied dc-current : ±3 * CR (current range)

applied dc-current resolution : 0.0183% of CR

applied dc-current accuracy : <0.4% (gain) + 0.002 * CR (offset)

measured dc-potential resolution :

193 µV (gain 1)

96.5 µV (gain 2)

38.5 µV (gain 5)

9.3 µV (gain 10)

9.65 µV (gain 20)

measured dc-potential accuracy : ≤ 0.2% ±1 mV offset Electrometer

electrometer amplifier input : > 1 TΩ // 10 pF

bandwidth : 10 kHz default or 500 kHz for EIS and fast CA/CP

Other

electrode connections : WE, RE, CE, S and ground, with 2 mm banana plugs housing

aluminum body : 7.2 x 5.5 x 2.6 cm3

weight ± 130 g

power + communication : USB-C port

internal storage space : 500 MB, equivalent to > 15M datapoints