Three electrode potentiostat galvanostat model CS350M supports 2, 3, or 4 electrode system. It contains a fast digital function generator, high-speed data acquisition circuitry, a potentiostat and a galvanostat. With high performance in stability and accuracy with advanced hardware and well-functioned software, it is a comprehensive research platform for corrosion, batteries, electrochemical analysis, sensor, life science and environmental chemistry etc.It will service your experiment with excellent performance. CS350M includes 40+ techniques such as EIS, CV, OCP, Tafel, LPR, GCD, CP, CA, I-t, E-t, etc.
Applications
-Energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors, etc);
-Reactive mechanisms of electrosynthesis, electrodeposition (electroplating), anodic oxidation, electrolysis;
-Metallic corrosion; corrosion inhibitor, coating and cathodic protection efficiency;
-Electrocatalysis (HER, OER, ORR, CO2RR, NRR).
Specifications
Specifications |
Support 2-, 3- or 4-electrode system |
Potential and current range: Automatic |
Potential control range: ±10V |
Current control range: ±2A |
Potential control accuracy: 0.1%×full range±1mV |
Current control accuracy: 0.1%×full range |
Potential resolution: 10μV (>100Hz),3μV (<10Hz) |
Current sensitivity:1pA |
Rise time: <1μs (<10mA), <10μs (<2A) |
Reference electrode input impedance:1012Ω||20pF |
Current range: 2nA~2A, 10 ranges |
Compliance voltage: ±21V |
Maximum current output: 2A |
CV and LSV scan rate: 0.001mV~10,000V/s |
CA and CC pulse width: 0.0001~65,000s |
Current increment during scan: 1mA@1A/ms |
Potential increment during scan: 0.076mV@1V/ms |
SWV frequency: 0.001~100 kHz |
DPV and NPV pulse width: 0.0001~1000s |
AD data acquisition:16bit@1 MHz,20bit@1 kHz |
DA Resolution:16bit, setup time:1μs |
Minimum potential increment in CV: 0.075mV |
IMP frequency: 10μHz~1MHz |
Low-pass filters: covering 8-decade |
Operating System: Windows 10/11 |
Interface: USB 2.0 |
Weight / Measurements: 6.5kg, 36.5 x 30.5 x16 cm |
EIS (Electrochemical Impedance Spectroscopy) |
Signal generator |
Frequency range:10μHz~1MHz |
AC amplitude:1mV~2500mV |
DC Bias: -10~+10V |
Output impedance: 50Ω |
Waveform: sine wave, triangular wave and square wave |
Wave distortion: <1% |
Scanning mode: logarithmic/linear, increase/decrease |
Signal analyzer |
Integral time: minimum:10ms or the longest time of a cycle |
Maximum:106 cycles or 105s |
Measurement delay: 0~105s |
DC offset compensation |
Potential automatic compensation range: -10V~+10V |
Current compensation range: -1A~+1A |
Bandwidth: 8-decade frequency range, automatic and manual setting
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Techniques - CS350M
Stable polarization
- Open Circuit Potential (OCP)
- Potentiostatic (I-T curve)
- Galvanostatic
- Potentiodynamic (Tafel plot)
- Galvanodynamic (DGP)
Transient Polarization
- Multi Potential Steps
- Multi Current Steps
- Potential Stair-Step (VSTEP)
- Galvanic Stair-Step (ISTEP)
Chrono Method
- Chronopotentiometry (CP)
- Chronoamperametry (CA)
- Chronocaulometry (CC)
Voltammetry
- Linear Sweep Voltammetry (LSV)
- Cylic Voltammetry (CV)
- Staircase Voltammetry (SCV) #
- Square Wave Voltammetry (SWV) #
- Differential Pulse Voltammetry (DPV) #
- Normal Pulse Voltammetry (NPV) #
- Differential Normal Pulse Voltammetry (DNPV) #
- AC Voltammetry (ACV)
- 2nd harmonic AC Voltammetry (SHACV)
- Fourier Transform AC Voltammetry (FTACV)
Electrochemical Impedance Spectroscopy (EIS)
- Potentiostatic EIS (Nyquist, Bode)
- Galvanostatic EIS
- Potentiostatic EIS (Optional freq.)
- Galvanostatic EIS(Optional freq.)
- Mott-Schottky
- Potentiostatic EIS vs. Time (Single freq.)
- Galvanostatic EIS vs. Time (Single freq.)
Corrosion Measurements
- Cyclic polarization curve (CPP)
- Linear polarization curve (LPR)
- Electrochemical Potentiokinetic Reactivation (EPR)
- Electrochemical Noise (EN)
- Zero resistance Ammeter (ZRA)
Battery test
- Battery Charge and Discharge
- Galvanostatic Charge and Discharge (GCD)
- Potentiostatic Charging and Discharging(PCD)
- Potentiostatic Intermittent Titration Technique (PITT)
- Galvanostatic Intermittent Titration Technique (GITT)
Amperometric
- Differential Pulse Amperometry (DPA)
- Double Differential Pulse Amperometry (DDPA)
- Triple Pulse Amperometry (TPA)
- Integrated Pulse Amperometric Detection (IPAD)
Extensions
- Electrochemical Stripping/ Deposition
- Bulk Eletrolysis with Coulometry (BE)
- Rs Measurement
# There is the corresponding stripping method
SOFTWARE FEATURES
1. CS studio software provides users a versatile smoothing/differential/ integration kit, which can complete the calculation of peak height, peak area and peak potential of CV curves. In CV technique and constant current charge and discharge, after measurement, during the data analysis, there is function of selecting the exact cycle(s) to show
2. CS studio also provides powerful non-linear fitting on Butler-Volmer equation of polarization curve. It can calculate Tafel slope, corrosion current density, limitation current, polarization resistance, corrosion rate. It can also calculate the power spectrum density, noise resistance and noise spectrum resistance based on the electrochemical noise measurements.
3. CS Studio software can achieve real time storage of the measuring data. The data can be automatically saved even in case of sudden power failure.
4. CS studio kit has a built-in versatile timing policy for combination tests, which can facilitate the automation of experiments and save time.
5. CS studio software can achieve timing measurements. After setting the experiment and time, click start, then the experiment will be conducted automatically when it is the time.
6. Battery analysis: charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy etc.

7. EIS analysis: Bode, Nyquist, Mott-Schottky plot
8. Data open in notepad( txt format) and Origin
TECHNICAL ADVANTAGES
Switchable floating and earthing mode
All CS potentiostats/galvanostats can switch between the floating and earthing modes, and this strategy is beneficial for studying electrochemical systems in which the working electrodes are intrinsically ground, such as autoclaves, in-site concrete structures and multi-working electrodes requiring isolation, etc.
High-bandwidth EIS
With the help of built-in digital FRA and arbitrary signal generator, as well as the high input impedance (1013 W), the CS potentiostat is particularly suitable for EIS measurements of high-impedance systems (such as coating, membrane, concrete, etc.)
Based on the DC bias compensation technique, CS potentiostats can conduct EIS tests under different charge/discharge states of batteries, making them suitable for ultra-low resistance systems, such as power batteries, fuel cells, water-splitting equipment, etc.
Multiple electrode configurations
CS potentiostats support 2-, 3-, or 4-electrode configurations and can measure the galvanic current via built-in zero resistance ammeter circuits.
User-defined sequence test
CS Studio 6.0 for Windows software supports user-defined sequence tests ("combination test"), which can facilitate automatic testing according to user-defined experiment sequences.
Power booster
Through CS2020B/CS2040B/CS2100B booster, the CS potentiostats can extend their output current up to ±20A/40A/100A, meeting the growing requirements in fuel cells, power batteries, electroplating and
The compliance voltage of single-channel potentiostat can be customized(±30V),suitable for carbon/nitrogen electrochemical reduction.
With a multiplexer, the CS single-channel potentiostats can be extended to 16~32 channels for high throughput testing.
CS potentiostats can work with a CST520 arrayed electrode mapper to study the non-uniform corrosion of metal samples under deposits, coatings and anti-rust oils.
Software development kit (SDK)
All CS potentiostats run under the control of CS Studio 6.0 for Windows (CSS 6.0). The CSS6.0 supports third-party languages, such as LabVIEW, C, C++, C#, VC, Python and others. Some API general interfaces and development examples can be supplied with the CS potentiostats. Through the SDK, customers can implement user-defined test methods.
Real-time data saving
CSS 6.0 saves experimental data timely, even if the experiment is accidentally interrupted by a power failure or computer shutdown. CSS 6.0 supports several data formats compatible with Originpro and Microsoft Excel.

Versatile data analysis functions
CSS 6.0 provides robust functions, including various electrochemical measurements and data analysis. It can complete Tafel plot fitting, CV derivation, integration and peak height analysis, EIS equivalent circuit fitting, etc.
3, 4 parameter polarization curve fitting.
EIS fitting
Electrochemical noise spectrum analysis
Pseudo-capacitance calculation
GCD-specific capacitance, efficiency calculation
Mott-Schottky analysis
CV curve analysis
Activation/re-passivation curve analysis
Three- electrode system connection
Greed WE & white SENSE connect together to working electrode
Red CE connects to the counter electrode
Yellow RE connects to the reference electrode
Black (GND) connects to galvanic electrode WE2 in electrochemical noise experiment. If use a Faraday cage, black GND and Shield connect the cage together.
Two- electrodes system connection
The green WE& white SENSE connect together to WE / anode;
Red CE & yellow RE connect together to cathode.