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Description

CS350 POTENTIOSTAT/GALVANOSTAT
Potentiostats and galvanostats are electrochemical instruments used in electrochemistry, battery and fuel cell testing, corrosion control, voltammetry, biomedical research, surface imaging, and related applications.
CS350 Potentiostat/ Galvanostat is a general potentiostat/ galvanostat/ FRA designed for general purpose electrochemical measurements.The instrument is capable of a wide variety of electrochemical techniques, and is available with integrated simulation and fitting software functions for both impedance and cyclic voltammetry. CS350 is the most comprehensive model among.
CS350 potentiostat/galvanostat with built-in EIS is the most advanced and comprehensive model among single channel models. It contains a fast digital function generator, high-speed data acquisition circuitry, a potentiostat and a galvanostat. It has more than 40 electrochemical methods including built-in EIS (frequency range 10μHz~1MHz). Max. current is ±2A, potential range is ±10V. It can be used for high current systems such as corrosion, the hot CO2 reduction, and low current measurements as well. It supports 2, 3, 4 electrode system, and can run under floating or grounded mode.
Applications:    
1. Reaction mechanism of Electrosynthesis, electrodeposition (electroplating), anodic oxidation, etc.
2. Electrochemical analysis and sensor;
3. New energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors), advanced functional materials, photoelectronic materials;
4. Corrosion study of metals in water, concrete and soil etc;
5. Fast evaluation of corrosion inhibitor, water stabilizer, coating and cathodic protection efficien
 
HARDWARE FEATURES
Dual-channel high-speed 16bit/ high-accuracy 24bit AD converter;
Built-in frequency response analyzer (FRA), frequency range: 10μHz~1MHz;
High-bandwidth high input impedance amplifier unit
Built-in FPGA DDS digital signals synthesizer
High-power Potentiostat/ Galvanostat/ ZRA;
Potential control range: ±10V; Compliance voltage: ±21V;
Current control range: ±2A;
Potential resolution: 10μV; current resolution 1pA.
TECHNICAL ADVANTAGES:
1. Impedance (EIS)
CS potentiostat applies correlation integral algorithm and dual-channel over-sampling technique, and has strong anti-interference ability. It is suitable for EIS measurements of high- impedance system (>109Ω, such as coating, concrete etc.). It can also be used to obtain Mott-Schottky curve and differential capacitance curve. During test, the software can display real-time open circuit potential (OCP) without entering.

EIS plot of Li-battery, frequency range: 10mHz~1MHz
2. Polarization curve
It can complete linear polarization curve and Tafel plot measurements. The user can set the anodic reversal current (passivation film breakdown current) of the cyclic polarization curve to determine material’s pitting potential and protection potential and evaluate the its susceptibility to intergranular corrosion. The software employs non-linear fitting to analyze polarization curve, and can make fast evaluation of material’s anti-corrosion ability and inhibitors.
Polarization curve of Ti-based amorphous alloy&stainless steel in 3%NaCl solution
3. Voltammetry
It can do the following electroanalysis methods: Linear Sweep Voltammetry (LSV), Cyclic Voltammetry (CV), Staircase Cyclic Voltammetry (SCV), Square wave voltammetry (SWV), Differential Pulse Voltammetry(DPV), Normal Pulse Voltammetry (NPV), AC voltammetry (ACV), Stripping voltammetry etc. It can complete calculation of the integrated peak area, peak current and standard curve analysis.
                    
  LSV curve: mesoporous carbon material in 0.1M KOH solution
  CV curves in three-electrode cell of PPy in 0.5 mol/L H2SO4 (50 mV/s)
4. Electrochemical Noise
With high-resistance follower and zero-resistance ammeter, it measures the natural potential/current fluctuations in corrosion system. It can be used to study pitting corrosion, galvanic corrosion, crevice corrosion, and stress corrosion cracking etc. Through noise spectrum, we can evaluate the inducement, growth and death of metastable pitting and crack. Based on calculation of noise resistance and pitting index, it can complete localized corrosion monitoring.
Electrochemical noise of low-carbon steel in 0.05mol/L Cl+0.1mol/L NaHCO3
5. Full floating measurement
CS workstation uses full-floating working electrode. It can be used for autoclave electrochemical measurements, on-line corrosion monitoring of metallic components under the ground (rebar in concrete, etc.)
6. User-defined methods
CS workstation supports user-defined combination measurements. The user can set cyclic  timing measurements of an electrochemical method or several methods.
We are able to provide API functions and development examples, which facilitates some users’ requirements for secondary development and self-defined measurements.
FEATURES OF THE CS STUDIO SOFTWARE
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. You can choose to see a cycle or some cycles as you want. You can also export data or vector graph of an exact cycle or several cycles.
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 electrochemical noise measurements.

Battery 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.
Real time saving of data: The data can be automatically saved even in case of sudden power off.
Combination test: it can facilitate the automation of experiments and save time. With the unique function of combination test, you can choose several techniques, and set the wait time, the start time, and the cycles. Choose the experiments you want to run. Then you can make auto measurement of the set experiments as you want without having to wait in the lab. This function is especially useful if you have multi experiments to run and save your time greatly.
Data open: You can open the data files by txt format in notepad. Data can also be opened in Origin
SPECIFICATIONS
Channel: Single Channel
Zero resistance ammeter
Electrode system: Support 2, 3 or 4 electrode system
Potential control range: ±10V
Current control range: ±2A (can be up to 5A by a current booster)
Potential control accuracy: 0.1%×full range±1mV
Current control accuracy: 0.1%×full range
Potential resolution: 10μV (>100Hz), 3μV (<10Hz)
Current sensitivity: 10pA
Rise time: <1μs (<10mA), <10μs (<2A)
Reference electrode input impedance: 1012Ω||20pF
Current range: 2nA~2A, 10 ranges
Compliance voltage: ±21V

Potential and current range: Automatic
Maximum current output: 2.0A
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
Low-pass filters: covering 8-decade
Electrochemical impedance (EIS)
Signal generator
Frequency range:10μHz~1MHz
Frequency accuracy: 0.005%
AC amplitude:1mV~2500mV
Signal resolution: 0.1 mV RMS
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
PC and O/S requirement
Communications Interface: Isolated Universal Serial Bus (USB 2.0)
Operating System: XP/ Win7/ Win8/ Win10
Weight / Measurements
Net weight: 6.5kg
Instrument size: 365 x 305 x 160mm

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