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PARSTAT 4000A Potentiostat Galvanostat

PARSTAT4000A - Front Panel

The PARSTAT 4000A stands alone in its ability to deliver high compliance voltage and wide dynamic current range, as standard, to cover a range of applications.  The PARSTAT 4000A builds on PAR's history as the world-leader in DC electrochemical measurements and takes advantage of a common R/D team with Solartron Analytical, the world-leader in Frequency Response Analyzer (FRA) technology, to provide a best-in-class complete system.

Specifically, the PARSTAT 4000A has industry-leading DC Voltage Accuracy, both Applied and Measured.  This is advantageous for all electrochemical experiments, whether operating as a potentiostat, galvanostat, or zero resistance ammeter (ZRA).  The most common research areas and techniques that benefit from this improved accuracy are:

  • Energy: Batteries (Li-ion, Li-Air, Zn-Air), capacitors, and fuel cells -- Charge-Discharge, CC-CV, Constant Current and EI
  • Corrosion: Bare-metal corrosion, galvanic couples and coatings -- Tafel, Linear Polarization Resistance (LPR), Electrochemical Noise, and EIS
  • Voltammetry: Physical electrochemistry and electrochemical sensors -- Cyclic Voltammetry, Chronoamperometry, Chronopotentiometry, and EIS
The new hardware-based, user-selectable Stability Modes further expands the compatibility of the PARSTAT4000A with a range of electrochemical cells and samples. 

The PARSTAT4000A now provides a vastly improved Electrochemical Impedance Spectroscopy (EIS) technique.  This is made possible by:

  • Advanced calibration routines for overall improved accuracy across the entire range of frequency and impedance
  • Faster experiment duration, without sacrificing data quality typically associated with Multi-Sine EIS techniques
  • New algorithms that provide increased accuracy of signal amplitude at high frequency
  • Increased bandwidth for measurement up to 10 MHz
  • Direct connection to energy-storage devices through the MACCOR battery holders eliminate impact from cell cable impedance

The PARSTAT 4000A can measure up to 4-Amps and includes a 40 pA range (1.2 fA resolution).  Additionally, options are available to boost the high current measurement to 20-Amps and extend measurements down to 80 fA (2.5 aA resolution).

  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 18 bit 1 M samples per second ADCs synchronized voltage/current/auxiliary
    Time Base Resolution (min) 1µs (1 M samples/second)
    Automatic Noise Filters Enabled/disabled
    Power Amplifier
    Compliance Voltage ±48 V
    Compliance Current ±4 A (standard)±20 A (with 20 A option)
    Potentiostat Bandwidth 3.75MHz (typical), 2 mA range, 1 kΩ load
    Stability Settings High speed, high stability
    Slew Rate >25 V per µs (typical)
    Rise Time (-1.0V to +1.0V) <100 ns (typical)
    Voltage Control (potentiostat mode)
    Applied Voltage Range ±10 V
    Applied Voltage Resolution for ±10 mV signal = 305 nV
    for ±100 mV signal = 3 µV
    for ±1 V signal = 30 µV
    for ±10 V signal = 300 µV
    Applied Voltage Accuracy ± 0.025% of setting ±1 mV 
    Maximum Scan Rate 25 kVs-1 (25 mV step)
    Current Control (galvanostat mode)
    Applied Current Range 0 to ±4 A (standard)
    Applied Current Accuracy ±0.2% of reading, ±0.2% of range ±2 pA
    Minimum Current Resolution 61 fA
    Maximum Input Range ±10 V
    Bandwidth ≥10 MHz (-3 dB)
    Input Impedance ≥1014 Ω in parallel with ≤2 pF (typical)
    Leakage Current ≤ 2 pA at less than 25°C (typical)
    CMRR 60 dB at 100 kHz (typical)
    Voltage Measurement
    Voltage Range ±10 V
    Voltage Resolution 1.5 µV (2.5 V range, X50 gain applied)
    Voltage Accuracy ± 0.025% of reading ±1 mV
    Current Measurement
    Current Ranges Auto-ranging (13 ranges)
    20 A to 40 pA (13 ranges)
    200 mA to 80 fA (with low current option)
    Current Resolution 1.2 fA (40 pA range)
    2.5 aA (with low current option)
    Current Accuracy (DC) 2 nA to 20 A,  ±0.2% of reading, ±0.2% of range
    40 pA to 200 pA ±0.5% range, ±4 pA
    Bandwidth 10 MHz (typical)
    Bandwidth limit filter Yes
    Impedance (EIS)
    Mode Potentiostat/Galvanostatic
    Frequency Ranges 10 MHz to 10 µHz 
    Minimum AC Voltage Amplitude 0.1 mV RMS
    Sweep Linear or Logarithmic
    iR Compensation
    Positive Feedback Yes
    Dynamic iR Yes
    Interfaces (included as Standard)
    Signal Monitors E and I
    Digital inputs/outputs 5 TTL logic outputs, 2 TTL logic inputs
    Auxiliary Voltage Input
    Measurement synchronized to V and I
    ±10 V range, input impedance 10 kΩ
    BNC connector
    DAC Voltage Output (Standard) ±10 V range, output impedance 1 kΩ
    BNC connector (for stirrers, rotating disk electrode etc.)
    PC / Software
    Communications Interface Universal Serial Bus (USB)
    Operating System Windows 10/8/7 (64-bit & 32-bit), Windows XP
    PC Specification (minimum) Intel Core i5 or equivalent / 4 GB memory 
    High Data rates may require additional memory
    Software VersaStudio; VersaStudio Developers Kit (VDK)
    Power 750 VA Max.
    Voltage range 90 Vac to 250 Vac, 50-60 Hz
    Dimensions 51.5 x 49 x 19.5 cm
    Weight 23 kgs
    Operating Temperature Range 10°C to 50°C
    Humidity Maximum 80% non-condensing
    Temperature (specified) 25°C
    Dummy Cell Internal and external
    CE Approved Yes
  • Options +

    External Power Booster
    The external power booster for the PARSTAT4000 Family improves the high current capability to 20A                20A/PARSTAT4000
     VersaSTAT LC
     With the VersaSTAT LC, the PARSTAT4000 Family extends low current measurement to an industry-leading 80 fA range 
    (2.5 aA resolution)
  • Optional Software +

    • ZSimpWin - Electrochemical Impedance Spectroscopy (EIS) Data Analysis Software

      • 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 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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