Overview
The VersaSTAT 4 builds upon the already impressive new design of the VersaSTAT 3 giving you even more improved speed, versatility, and precision required for a range of electrochemical applications.
The increased maximum current of 1A standard as well as optional current boosters up to 20A, positions the VersaSTAT 4 to take you from the early stages of battery and fuel cell development to the charge/discharge experiments on the final product and the challenges that lie ahead for the next generation of batteries.
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 corrosion 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 up to 1A with additional bosster options ranging from 2A-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
- An internal frequency response analyzer option that provides impedance analysis over the frequency range 10µHz to MHz
- Easy-to-use VersaStudio software included
Specifications
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Data Acquisition |
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Data Acquisition |
3 x 16 bit 500k samples per second ADCs synchronized voltage/current/auxiliary |
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Time Base Resolution (min) |
2µs (500k samples/second) |
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Automatic Noise Filters |
Enabled/disabled
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Power Amplifier |
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Voltage Compliance |
±12V |
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Current Compliance |
±1A (standard) ±2A (with 2A option) |
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Potentiostat Bandwidth |
1 MHz |
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Stability Settings |
six settings; high stability, 1Mhz-100Hz |
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Slew Rate |
>8V per µs typical (no load) |
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Rise Time (-1.0V to +1.0V) |
<350 ns (no load)
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Voltage Control (potentiostat mode) |
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Applied Voltage Range |
±10V |
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Applied Voltage Resolution |
for ±10mV signal = 300nV for ±100mV signal = 3µV for ±1V signal = 30µV for ±10V signal = 300µV |
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Applied Voltage Accuracy |
±0.2% of value ±2mV |
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Maximum Scan Rate |
5000 Vs-1 (10 mV step) |
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Maximum Scan Range |
±10V / 300µV
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Current Control (galvanostat mode) |
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Applied Current Range |
±full scale (depends on range selected) ±1A (standard), ±2A (with option) |
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Applied Current Resolution |
±1/32,000 x full scale |
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Applied Current Accuracy |
±0.2% of reading, ±0.2% of range ±200pA |
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Max. Current Range/Resolution |
±1A / 60µA |
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Min. Current Range/Resolution |
±4nA / 120 fA
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Electrometer |
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Max. Input Range |
±10V |
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Bandwidth |
≥10MHz (3dB) |
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Input Impedance |
≥1012 Ω in parallel with ≤5pF (typical) |
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Leakage Current |
≤5pA at less than 25°C |
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CMRR |
60 dB at 100kHz (typical)
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Voltage Measurement |
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Voltage Range |
±10V |
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Minimum Resolution |
6µV |
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Voltage Accuracy |
±0.2% of reading, ±2mV
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Current Measurement |
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Current Ranges |
Auto-ranging (10 ranges) 1A to 4nA (8 ranges) 2A to 4nA (with option) |
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Current Resolution |
120 fA (4nA range) |
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Current Accuracy (DC) |
20nA to 2A: ±0.2% of reading, ±0.2% of range 4nA: <0.5% ±20pA |
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Bandwidth |
1MHz (signal ≥2mA range typical) |
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Bandwidth limit filter |
Yes, five total
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Impedance (EIS) Option |
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Mode |
Potentiostat/Galvanostatic |
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Frequency Ranges |
10µHz to 1MHz |
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Minimum AC Voltage Amplitude |
0.1mV RMS |
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Sweep |
Linear or Logarithmic
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iR Compensation |
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Positive Feedback |
Yes |
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Dynamic iR |
Yes
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Interfaces (included as Standard) |
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Digital inputs/outputs |
5 TTL logic outputs, 2 TTL logic inputs |
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Auxiliary Voltage Input |
Measurement synchronized to V and I ±10V range, input impedance 10kΩ Filter: off, 1kHz, 200kHz BNC connector |
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DAC Voltage Output (Standard) |
±10V range, output impedance 1kΩ BNC connector (for stirrers, rotating disk electrode etc.)
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PC / Software |
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Communications Interface |
Universal Serial Bus (USB) |
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Operating System |
Windows 7 (64-bit & 32-bit) Windows XP / Vista |
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PC Specification (minimum) |
Pentium 4 (1GHz) / 1GB memory High Data rates may require additional memory |
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Software |
VersaStudio
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General |
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Power |
250VA Max. Voltage range 90Vac to 250Vac, 50-60Hz |
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Dimensions |
16¼” x 15¼” x 3½” 421 x 387 x 89mm |
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Weight |
10lbs, 4.5kgs |
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Operating Temperature Range |
10°C to 50°C |
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Humidity |
Maximum 80% non-condensing |
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Temperature (specified) |
25°C |
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Dummy Cell |
Internal (DC only) |
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CE Approved |
Yes |
