Corrosion Test

Corrosion Test

Supply list
Instrument host*1
CS studio software (Testing & data analysis) *1
Power cable*1
USB cable *1
Electrode cable *2
Dummy cell *1
Delivery: 4 weeks after payment is received.
Payment: 100% T/T payment in advance.
Service
1. Warranty period: 3 years
2. Provide installation guidance and manual, software installation video. Provide online support
through TeamViewer during use, etc
3. Provide repair service for free
4. Lifetime free software upgrading and technical service

(potentiostat / galvanostat) 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.

Applications
– Reaction mechanism of Electro synthesis, electrodeposition, anodic oxidation, etc.
– Electrochemical analysis and sensor;
– New energy materials (Li-ion battery, solar cell, fuel cell, super capacitors), advanced functional materials, photo electronic materials;
– Corrosion study of metals in water, concrete and soil, etc;
– Fast evaluation of corrosion inhibitor, water stabilizer, coating and cathodic protection efficiency.

Specifications
Support 2-, 3- or 4-electrode system
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)
Current range: 2nA~2A, 10 ranges
Reference electrode input impedance:1012Ω||20pF
Maximum current output: 2A
Compliance voltage: ±21V
Current increment during scan: 1mA@1A/ms
CV and LSV scan rate: 0.001mV~10,000V/s
Potential increment during scan: 0.076mV@1V/ms
CA and CC pulse width: 0.0001~65,000s
DPV and NPV pulse width: 0.0001~1000s
SWV frequency: 0.001~100 kHz
Minimum potential increment in CV: 0.075mV
AD data acquisition:16bit@1 MHz,20bit@1 kHz
Potential and current range: Automatic
DA Resolution:16bit, setup time:1μs
Low-pass filters: Covering 8-decade
Communication interface: USB 2.0
Operating System requirements: Windows 7/win8/win10
Weight: 6.5kg
Instrument size: 36.5 x 30.5 x16cm

Electrochemical Impedance Spectroscopy (EIS)
Signal generator
Frequency range:10μHz~1MHz
AC amplitude:1mV~2500mV
Output impedance:50Ω
DC Bias: -10~+10V
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
Software Features
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.

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.

CS Studio software can achieve real time saving of the measuring data. The data can be automatically saved even in case of sudden power off.
CS studio kit has a built-in versatile timing policy for combined measurements, which can facilitate the automation of experiments and save time.
Battery analysis: charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy etc.

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. It can also be used to obtain Mott-Schottky curve and differential capacitance curve.
2. Polarization curve
Polarization curve / Tafel plot can be obtained. 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.

3. Voltammetry
It can do the following experiments: 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 integrates calculation of peak area, peak current and standard curve analysis.

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.
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.)