Potentiostat Specifications

We specify our Potentiostats very conservatively, so you can be sure that your Gamry Potentiostat will meet these specifications in any Windows-compatible computer anywhere in the world.

PCI4/750

PCI4/300

FAS2 Femtostat

Potentiostat

Yes

Galvanostat

Yes

Zero Resistance Ammeter

Yes

Compliance Voltage	±12 V	±20 V	± 12 V
Max. Output Current	±750mA	±300mA	±30 mA
Max. Applied Potential	±8 V	±11 V	±11 V
Current Ranges	9 Ranges: 7.5 nA – 750 mA	9 Ranges: 3 nA – 300 mA	10 Ranges: 30 pA – 30 mA
Rise Time	2 µsec	2 µsec	2 µsec
Noise and Ripple	<20 µV rms	<20 µV rms	<20 µV rms
EIS Measurement	Yes	Yes	Yes

Frequency Range

10 µHz–300 kHz

10 µHz – 300 kHz

Impedance Error

See Accuracy Contour Plot

Applied AC Amplitude

2800 mV rms

System Performance

Applied Potential Accuracy

±0.3 % of setting ± 1 mV

±0.2 % of setting ± 1 mV

Drift

<30 µV/°/C

Measured Resolution (16 bits)

1mV,100μV, 10μV, 1μV

1mV,100μv, 10μv, 1μV

1mV,100μV, 10μV, 1μV

DC Bias

±12V w 1.5mV resolution

Scan Ranges

±0.4V, ±1.6V, ±6.4V

Applied Current Accuracy

±0.3% full-scale

± 0.3% full-scale

Post Gain

0.1, 1, 10, 100

Measured Resolution (16 Bits)

250 fA – 25 µA/Bit (Gain=1)

100 fA – 10 µA/Bit (Gain=1)

1 fA – 1 µA/Bit (Gain=1)

Offset Range

±4X full-scale

DC Accuracy

±0.3% range ±50 pA

High Speed: ±0.3% range ±1 nA Low Speed: ±0.3% range ±1 pA

Bandwidth (-3dB)

(Note: Bandwidth is dependent on current range)

>500kHz (750μA-750mA)

>100kHz(75μA),
>10Hz(7.5nA)

>500kHz (300μA-300mA)

>100kHz (30μA),>10Hz(3nA)

High Speed: 1 MHz (30µA-30mA), 25kHz (3µA), 100kHz (300pA)

Low Speed: 250KHz (30µA-30mA), 25kHz (3µA), 10Hz (30pA)

Electrometer

Input Impedance

>10¹² ohms

Fast: >10¹⁰ ohms
Slow: >10¹³ ohms

Input Current

<10 pA

Fast: <10 pA
Slow: <100 fA

Bandwidth(-3dB)

>4 MHz

>5 MHz

Current Interrupt iR Compensation

Cell Switching time

<1 µsec (1 kohm)

Minimum interrupt time

15 µsec

Maximum interrupt time

64 msec