Single-Channel Potentiostat Galvanstat Electrochemical Workstation CS350m/CS310m/CS300m

• After-sales Service: Free
• Warranty: 3 Years
• Manufacturer: Wuhan Corrtest Instruments
• Model NO.: CS350M/CS310M/CS300M
• Current Range: ±2A
• Potential Range: +/- 10V
• Eis Frequency: 10μHz~1MHz
• Eis Function: Included
• Cyclic Voltammetry: Included
• Galvanostatic Charge and Discharge: Included
• Polarization Curve/Tafel: Included
• Lsv Technique: Included
• Potential Control Range: ±10V
• Packing Weight: 10 Kg
• Transport Package: Standard Carton
• Specification: 36*30*16 cm
• Trademark: Corrtest
• Origin: China
• HS Code: 9027899090
• Production Capacity: 1000 Sets/Year

Product Description

Corrtest Single-channel potentiostat /galvanostat / electrochemical workstation consists of DDS arbitrary function generator, high power potentiostat/galvanostat, dual-channel correlation analyzer, dual-channel high-speed 16bit/high-precision 24bit AD converter and extension interfaces. Max. current is ±2A, potential range is ±10V. EIS frequency range is 10uHz~1MHz. It can be used for various electrochemical fields such as corrosion, energy, material and electroanalysis. The current can be boosted up to 20A/40A/100A with a current booster CS2020B/ CS2040B/CS2100B.

Application
-Energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors, electrocatalysis; 
-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

Techniques - single-channel potentiostat

Hardware specs and appearance are the same for various models, difference is in software part.
Model CS350M (with built-in EIS) is the most comprehensive model, includes all methods incl. EIS. It's suitable for various applications, and also for teaching
Model CS310M (with built-in EIS) also includes EIS module. But it has less voltammetry methods compared with CS350. CS310 is a cost-effective model if you need EIS. It's an ideal model for corrosion, battery studies etc.
Model CS300M (without EIS) includes all the voltammetry methods but EIS, usually used in heavy metal ions detecting etc.
 

Techniques		CS300M	CS310M	CS350M
		W/O EIS	With EIS	With EIS
Stable polarization	Open Circuit Potential (OCP)	√	√	√
	Potentiostatic (I-T curve)	√	√	√
	Galvanostatic	√	√	√
	Potentiodynamic(Tafel plot)	√	√	√
	Galvanodynamic	√	√	√
Transient polarization	Multi-Potential Steps	√	√	√
	Multi-Current Steps	√	√	√
	Potential Stair-Step (VSTEP)	√	√	√
	Galvanic Stair-Step (ISTEP)	√	√	√
Chrono methods	Chronopotentiometry (CP)	√	√	√
	Chronoamperometry (CA)	√	√	√
	Chronocoulometry (CC)	√	√	√
Voltammetry	Cyclic Voltammetry (CV)	√	√	√
	Linear Sweep Voltammetry (LSV)(I-V)	√	√	√
	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 A.C.Voltammetry (SHACV)	√		√
Amperometry	Differential Pulse Amperometry (DPA)			√
	Double Differential Pulse Amperometry (DDPA)			√
	Triple Pulse Amperometry (TPA)			√
	Integrated Pulse Amperometric Detection (IPAD)			√
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  test	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)	√	√	√

Applications
Corrosion Electrochemistry 
CS single-channel potentiostats/galvanostats support a variety of electrochemical techniques for corrosion, such as OCP recorder, potentiodynamic, EIS, cyclic polarization (CPP), LPR, hydrogen diffusion test, zero resistance ammeter (ZRA), electrochemical noise (ECN), etc.
Due to their high input impedance(10¹³Ω), they are especially suitable for EIS measurement of high-impedance systems like coating, concrete, and pure water.

High-impedance coating ageing test in salt spray tests

Polarization curves of Ti-alloy& stainless steel in 3%NaCl solution

ECN of low-carbon steel in 0.05mol/L Cl+0.1mol/L NaHCO₃

Energy & Battery Testing
With versatile functions like linear sweep voltammetry (LSV), cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), EIS (including potentiostatic and galvanostatic modes) with precise IR compensation, CS potentiostats are widely used in supercapacitor, Li-ion batteries, Li-S batteries, fuel cell, solar cell, solid-state batteries, flow batteries, and metal-air batteries, etc.

CV of PPy supercapacitor in 0.5 mol/L H₂SO₄ solution

Electrocatalysis
Based on CV and LSV techniques, CS potentiostats can carry out long-term tests for ORR, OER, HER, and CO₂ reduction, which is crucial for evaluating catalyst stability. In addition, the CS2350M bi-potentiostat and multichannel potentiostat specialize in Faradaic efficiency synchronous measurement.
CS potentiostats can measure the half-wave potential (ORR) and overpotential (HER, OER) of catalysts and calculate the power density and energy density of Redox peaks.

LSV curves of various catalysts in alkaline solution

Analytical Electrochemistry
CS potentiostats include comprehensive voltammetric methods such as NPV, DPV, DNPV, SWV, and ACV, which make them ideal for quantitative analysis of trace elements via the intrinsic Voltammetry stripping techniques.

Electrochemical Sensor
Thanks to the high current sensitivity(100fA) and voltage resolution(1 mV), the CS potentiostat can be used for the R&D of biosensors and electrochemical sensors.


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.

Sequence Test: corrosion tests

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.
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

Software Features
Cyclic voltammetry: 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, during the data analysis, there is function of selecting exact cycle(s) to show.

Tafel plot and corrosion rate: 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 ECN measurements.

Battery Test and analysis:
Charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy.

EIS analysis: Bode, Nyquist, Mott-Schottky plot
During EIS data analysis, there is built-in fitting function to draw the custom equivalent circuit.