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Technical Specification of the Instrument
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Potentiostat
Galvanostat (Model 440C)
2, 3, or 4-electrode configuration
Potential range: -10 to 10V
Applied potential accuracy: ±1 mV, ±0.02% of scale
Potentiostat rise time: < 2 μs
Compliance voltage: ±12 V
Maximum current: ±250 mA continuous, ±350 mA peak
Reference electrode input impedance: 1×1012 ohm
Sensitivity scale: 1×10-12 - 0.1 A/V in 12 ranges
Input bias current: < 50 pA
Current resolution: 0.0015% of current range, minimum 0.3 fA
Minimum potential increment in CV: 100 μV
Fast waveform update: 10 MHz @ 16-bit
Data acquisition: 16 bit @ 1 MHz
External signal recording channel
QCM Frequency resolution: < 0.1 Hz
QCM maximum sampling rate: 1 kHz
Automatic and manual iR compensation
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