VersaSTAT 4 Potentiostat Galvanostat

315 VersaSTAT 4
The VersaSTAT 4 builds upon the already impressive design of the VersaSTAT 3 giving you even more improved speed and low-current measurement required for a range of electrochemical applications.


The improved low current performance with fA resolution and pA accuracy addresses current sensitive applications such as sensors, corrosion, inhibitors, and combined with the optional FRA, coating technologies. The additional analog filtering makes the VersaSTAT 4 an even better choice for low-current applications while the additional bandwidth filtering adds extra stability for capacitive cells. The VersaSTAT 4, with its additional capabilities, makes an exciting addition to our VersaSTAT family making them even more of an exceptional value for all of your application needs.

  • Improved low current performance with fA resolution and pA accuracy
  • Maximum current of 2A, as of August 1st, 2018, and additional booster options ranging to 20A
  • 2µs time base for faster data acquisition and faster scan rates
  • Additional analog filter selections on current and voltage channels for superior signal/noise measurements (NONE, 200 kHz, 1 kHz, 100 Hz, 10 Hz, 1 Hz)
  • An internal frequency response analyzer option that provides impedance analysis over the frequency range 10µHz to 1MHz
  • Easy-to-use VersaStudio software included

VersaStudio software is included with all VersaSTAT 4 systems and users can select from the different groups of techniques that are available:

Energy providing charge-discharge curves (including CC-CV) for Capacity-vs-Cycle Number or Coulombic Efficiency as well as dedicated techniques such as Constant Power, Constant Resistance and Potentiostatic / Galvanostatic Intermittent Titration Technique (PITT, GITT)

Voltammetry providing fundamental electrochemical techniques such as Cyclic Voltammetry, Chrono-techniques.  The Advanced Voltammetry techniques also include Pulse Voltammetry methods.

Corrosion providing multiple corrosion analysis techniques, including the most common ASTM standards such as Linear Polarization Resistance (LPR, ASTM G59), Tafel (ASTM G5), Cyclic Polarization (ASTM G61), etc.

Impedance may be added to any system to provide Electrochemical Impedance Spectroscopy techniques

  Click here for more information about our accessories.


     Click here to download the latest version of our VersaStudio software.

  • Documents +

  • Specifications +


    Data Acquisition
    Data Acquisition 3 x 16 bit 500k samples per second ADCs synchronized voltage/current/auxiliary
    Time Base Resolution (min) 2µs (500k samples/second)
    Automatic Noise Filters Enabled/disabled
    Power Amplifier
    Voltage Compliance ±12V
    Current Compliance ±2A (standard as of August 1st, 2018)
    ±1A (prior to this date; 2A option available for these models)
    Potentiostat Bandwidth 1 MHz
    Stability Settings six settings; high stability, 1MHz-100Hz
    Slew Rate >8V per µs typical (no load)
    Rise Time (-1.0V to +1.0V) <350 ns (no load)
    Voltage Control (potentiostat mode)
    Applied Voltage Range ±10V
    Applied Voltage Resolution for ±10mV signal = 300nV
    for ±100mV signal = 3µV
    for ±1V signal = 30µV
    for ±10V signal = 300µV
    Applied Voltage Accuracy ±0.2% of value ±2mV
    Maximum Scan Rate 5000 Vs-1(10 mV step)
    Maximum Scan Range ±10V / 300µV
    Current Control (galvanostat mode)
    Applied Current Range ±full scale(depends on range selected)
    ±2A
    Applied Current Resolution ±1/32,000 x full scale
    Applied Current Accuracy ±0.2% of reading, ±0.2% of range
    ±200pA
    Max. Current Range/Resolution ±2A / 60µA
    Min. Current Range/Resolution ±4nA / 120 fA
    Electrometer
    Max. Input Range ±10V
    Bandwidth ≥10MHz (3dB)
    Input Impedance ≥1012Ω in parallel with ≤5pF (typical)
    Leakage Current ≤5pA at less than 25°C
    CMRR 60 dB at 100kHz (typical)
    Voltage Measurement
    Voltage Range ±10V
    Minimum Resolution 6µV
    Voltage Accuracy ±0.2% of reading, ±2mV
    Current Measurement
    Current Ranges Auto-ranging (10 ranges)
    2A to 4nA (8 ranges)
    Current Resolution 120 fA (4nA range)
    Current Accuracy (DC) 20nA to 2A:±0.2% of reading, ±0.2% of range
    4nA: <0.5% ±20pA
    Bandwidth 1MHz (signal≥2mA range typical)
    Bandwidth limit filter Yes, five total
    Impedance (EIS) Option
    Mode Potentiostat/Galvanostatic
    Frequency Ranges 10µHz to 1MHz
    Minimum AC Voltage Amplitude 0.1mV RMS
    Sweep Linear or Logarithmic
    iR Compensation
    Positive Feedback Yes
    Dynamic iR Yes
    Interfaces (included as Standard)
    Digital inputs/outputs 5 TTL logic outputs, 2 TTL logic inputs
    Auxiliary Voltage Input Measurement synchronized to V and I
    ±10V range, input impedance 10kΩ
    Filter: off, 1kHz, 200kHz
    BNC connector
    DAC Voltage Output (Standard) ±10V range, output impedance 1kΩ
    BNC connector (for stirrers, rotating disk electrode etc.)
    PC / Software
    Communications Interface Universal Serial Bus (USB)
    Operating System Windows 10 (64-bit & 32-bit)
    Windows 8 (64-bit & 32-bit)
    Windows 7 (64-bit & 32-bit)
    Windows XP
    PC Specification (minimum) Pentium 4 (1GHz) / 1GB memory
    High Data rates may require additional memory
    Software VersaStudio
    General
    Power 250VA Max. Voltage range 90Vac to 250Vac, 50-60Hz
    Dimensions 16¼” x 15¼” x 3½” 421 x 387 x 89mm
    Weight 10lbs, 4.5kgs
    Operating Temperature Range 10°C to 50°C
    Humidity Maximum 80% non-condensing
    Temperature (specified) 25°C
    Dummy Cell Internal (DC only)
    CE Approved Yes
  • Options +


    2A High Current Option Model Number
    ±2A internal High Current option for Battery, Fuel Cell, or Electroplating applications 2A/VersaSTAT4
    FRA Option
    An optional internal Frequency Response Analyzer that provides impedance analysis over the frequency range 10µHz to 1MHz FRA/VersaSTAT4
  • Optional Software +

    • ZSimpWin

      • High performing electrochemical impedance spectroscopy (EIS) data analysis software that easily interfaces with the VersaStudio software platform.
      • Minimal user input without the need for the starting values and simple, single-click fitting procedures.
      • Various options from pre-loaded circuit models to user created and saved models.  Output results using a range of plot formats and easily view estimated parameters and historical records of computation process.

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    • ZView Software

      • ZView is the companion EIS data analysis software for ZPlot
      • Multiple display formats (impedance, admittance, capacitance, permittivity and electrical modulus)
      • Comprehensive data analysis capabilities include an extensive library of equivalent circuit data fit models – R, C, L, Warburg, Distributed Elements

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