The epsilon is a family of potentiostat/galvanostats that has been designed to allow the user great flexibility in choosing their particular instrument. The most basic epsilon instrument can be used for standard techniques listed above, as well as chronopotentiometry, making it ideal for the teaching lab or for materials characterization (e.g., characterization of transition metal complexes by cyclic voltammetry and controlled potential electrolysis, or of biosensors by cyclic voltammetry and constant potential amperometry). Pulse, square wave, and stripping techniques can be added by a software upgrade, and a second channel can be added by a hardware upgrade.

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  • Potentiostat, galvanostat, and potentiometer
  • Bi-potentiostat option
  • Multiple document Windows interface
  • USB connection
  • Optically isolated circuitry for noise reduction
  • Analog filtering
  • Moving average digital smoothing
  • Positive feedback iR compensation with circuit stability testing
  • Internal dummy cells for hardware test
  • Remote control of BASi cell stands (CGME, C-3 Cell Stand, RDE-2)
  • Connects to BASi PWR-3 Power Module
  • Multiple experimental runs
  • File subtraction
  • Multiple text data file formats, including DigiSim
  • Peak finding routines (auto and manual)
  • File overlay
  • Anson plot (Q vs. t1/2) for chronocoulometry
  • Cottrell plot (i vs. t-1/2) for chronamperometry
  • Initiate potentiostat at open circuit potential
  • 50/60 Hz selection for noise minimization
  • IUPAC or polarographic axis convention
  • Wide current range – microelectrode to small-scale electrosynthesis


Potentiostat Channel 1 applied potential: Dynamic DAC: 16 bit, ±3.275 V @ 0.1 mV resolutionOffset DAC: 8 bit, ±2.55 V @ 10 mV resolutionChannel 2 applied potential: Dynamic DAC: 8 bit, ±2.55 V @ 10 mV resolutionCompliance voltage: ±12 V

Maximum current: 100 mA

Bandwidth: > 100 kHz

Bias current: < 1pA

Electrometer input impedance: > 1012 W
(values for parameters other than applied potential are for both channels)

Current-to-voltage converter Full scale sensitivity: 1 nA*, 10 nA*, 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA,100 mA, (*secondary gain used)Secondary gain: x1, x10, and x100
ADC resolution: 16 bit
Sampling rate: 50 kHz (20 µs/conversion)
Data length: up to 64k points – fast

Galvanostat Applied current: 50 pA – 50 mA
Range: ±10 V, ± 1 V
Measured potential resolution: 0.02 mV
Max leakage current: 30 pA

I/O Eout (applied potential)
Iout (current to voltage output)
Ein (input connection for external applied wave form)
Cell Stand port (control of C-3 Cell Stand and CGME)
Accessories Port (control of RDE-2)
PC (USB) port
Trigger out (TTL)

Minimum PC requirements: Windows 2000, XP, Vista, or Win 7
Pentium III
512 MB RAM
10 MB hard drive space available
USB port

Power requirements: 120 or 240 VAC, 50/60 Hz, 60 VA

Dimensions & weight 16.75″ (43 cm) x 5.25″ (13 cm) x 12.75″ (32.5 cm)
20.2 lb (9.2 kg) (1 channel)


 EC epsilon

Oprogramowanie DigiSim