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Second working electrode that can be used with respect to the RE or WE1

Available on IviumStat instruments, and selected CompactStat, Vertex and sModules

Code upgrade capability for IviumStat and CompactStat instruments

Ex-factory option for selected Vertex and sModules instruments

Applied offset potential range ±2.0 V

Maximum current ±30 mA

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Product description

The bipotentiostat (BiStat) is an internal hardware option that enables a second working electrode (WE2) with programmable potential offset with respect to the RE or WE1. It is used for various applications, including rotating ring disc electrode (RRDE) measurements. The bipotentiostat is fully integrated in the potentiostatic Sweep and Transient methods. Its data is recorded simultaneously with the primary channel and can be represented in the same plot using a secondary axis, or in a separate plot. The maximum scanrate or minimum interval times are the same as for the primary channel.

Specific parameters bipotentiostat :

  • 2 configurations
    • “standard”: WE2 at a fixed potential w.r.t. RE
    • “scanning”: WE2 at a fixed offset potential w.r.t. the primary WE
  • Applied offset potential range ±2.0 V
  • Applied potential resolution 0.0625 mV
  • Compliance voltage ±2.0 V w.r.t. primary WE
  • Maximum current ±30 mA
  • Current ranges 1 pA to 10 mA in 11 ranges (lower 4 ranges use gain amplifier)
  • Measured current resolution 0.076 % of current range, and 0.0000023% using gain amplifier
  • Minimum current resolution 0.15 fA
  • Data acquisition simultaneously with primary WE1, 100 kHz max.
  • Programmable response filter 1 MHz, 100 kHz, 10 kHz, 1 kHz, 10 Hz
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