Ametek PARSTAT 4000 - Voltage Measurement Specifications; Current Measurement Specifications; iR Compensation Details; Potential;Current Control DACs

PARSTAT 4000 Hardware Manual
PARSTAT 4000 Hardware Manual 26
4.1.6. Voltage Measurement
Voltage Range + 10 V
Minimum Voltage Resolution 1.5 µV (2.5 V range, X50 gain applied)
Voltage Accuracy + 0.2% reading, + 2 mV
4.1.7. Current Measurement
Current Ranges 13 decades, 20A to 40pA
200 mA to 80 fA (with low current option)
Current Measurement Accuracy (dc)
 2 nA to 20A + 0.2% reading, + 0.2% range
 40 pA and 200pA ranges + 0.5% range, + 4pA
4.1.8. iR Compensation
Positive Feedback Range: 50 MΩ to 5 Ω depending on current range
Dynamic iR : 2s/pt rate limit (Corrosion techniques)
4.1.9. Potential/Current Control
Digital/Analog Converters (DACs)
Bias DAC
 Resolution 18 bits
 Range (potentiostat) + 10V
 Range (galvanostat) + 100% of full-scale current
Modulation DAC
 Resolution 18 bits
 Range (potentiostat) + 10V
 Range (galvanostat) + 100% of full-scale current
4.1.10. Impedance Specifications
Frequency Range 10 μHz – 5 MHz
Maximum AC Voltage Amplitude 1000mV RMS
Minimum AC Voltage Amplitude 0.1mV RMS