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GAMRY POTENTIOSTAT - FAS2
The FAS2 potentiostat is designed for applications requiring very high sensitivity, such as microelectrode experiments, characterization of paints and coatings, and measurement of corrosion-resistant metals.

It is an ideal system for general physical electrochemistry such as cyclic voltammetry, pulse voltammetry, and EIS (impedance) measurements on , for example, organic/biological coatings. 

All measurement parameters are software controlled and straight forward hardware connections allow users to configure the system to their needs

Current available software suites (more suites can be added if needed)
EIS300 - Electrochemical Impedance Spectroscopy Software
PHE200 - Physical Electrochemistry Software
VFP600 - Virtual Front Panel Software

For more information on the FAS2 potentiostat and software see the GAMRY webpage

This system could be configured to work with the Pico+ AFM to perform localized impedence measurements using a conductive AFM tip

Tool manager: Brian Bowman

Technical data
Control Amplifier Current Measurement – All
Compliance Voltage ± 12 volts @ 30 mA Full Scale Ranges ± 30pA to ± 30mA in decades
Output Current ± 30 mA Post Gain 0.1, 1,10,100
Unity Gain Bandwidths 1 MHz, 200 kHz, 20 kHz Resolution (16 Bits) 1 fA to 10µA/Bit (Gain=1)
Slew Rate 8 V/µsec Offset Range ± 4X full scale (only 2X full scale useful)
Electrometer (Fast Mode) Current Measurement - High Speed
Input Impedance >10 GΩin parallel with 20 pF DC Accuracy ± 0.3% range ± 1 nA
Input Current < 10 pA Bandwidth (-3dB) 1MHz (30 µA - 30 mA), 100 kHz (3 µA), 100 Hz (300 pA)
Bandwidth(-3dB) > 5 MHz Current Measurement - Low Speed
Electrometer (Slow Mode) DC Accuracy ± 0.3% range ± 1 pA
Input Impedance > 10 TΩ in parallel with 8 pF Bandwidth (-3dB) 250 kHz (30 µA - 30 mA), 25 kHz (3 µA), 10 Hz (30 pA)
Input Current < 100 fA Current Interrup
Bandwidth(-3dB) >250 kHz Cell Switching time < 1 µsec (1 kohm cell )
Voltage Measurement Minimum interrupt time 15 µsec
Full Scale Ranges ± 30V (± 12 V usable), ± 3V, ± 300mv, ± 30mv Maximum interrupt time 64 msec
Resolution (16 Bits) 1 mV, 100 µV, 10 µV, 1 µV A/D Converter
DC Accuracy ± 0.2% Range ±1mv Resolution 16 bits
Offset Range ± 12V with 1.5 mV resolution Accuracy 0.1% of full scale
Potentiostat Mode - All Timing 50 µsec to 600 sec
Applied E Range ± 11 volts EIS Measurement
Accuracy ± 2 mV ± 0.3% of setting Frequency Range 0 µHz to 300 kHz
DC Bias ± 8V Impedance Error See EIS Accuracy Contour Map
Scan Ranges ± 0.4V, ± 1.6V, and ± 6.4V Power <20W (1.4 A @ 12V, 300mA @+5V, 80 mA @ -5V)
Resolution 12.5 µV/bit, 50 µV/bit, 200 µV/bit ZRA Mode
Drift < 30 µV/°C Effective Resistance < 4 Ω
Noise and Ripple < 20 µV rms(1Hz - 10 kHz)
Galvanostat Mode
Applied i range ± full scale i
DC accuracy ± 0.3% full scale

This material is based upon work supported in part by the STC Program of the National Science Foundation under Agreement No. ECS-9876771. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
Any opininons, findings, conclusions or recommendations expressed are those of the author(s) and do not necessarily reflect the views of the New York State Office of Science, Technology and Academic Research.


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