EmStat4

The EmStat4S is a portable USB-powered Potentiostat, Galvanostat, and optional Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS) and delivers desktop performance in the palm of your hand. The EmStat4S Low Range version is great for applications that require a low current range down to 1 nA, whereas the High Range version is very suitable for applications that need a maximum current of up to 200 mA. The EmStat4S is controlled with PSTrace for Windows, or you can write your own MethodSCRIPT and control it from any platform or operating system.

 

 

Techniques available with PStrace Software (included with the instrument)

  • Voltammetric Techniques
    • Linear Sweep Voltammetry
    • Cyclic Voltammetry
    • AC Voltammetry
  • Pulsed Techniques
    • Differential Pulse Voltammetry
    • Square Wave Voltammetry
    • Normal Pulse Voltammetry
    • Stripping Voltammetry
  • Amperometric
    • Chronoamperometry
    • Zero Resistance Amperometry
    • Chronocoulometry
    • Pulsed Amperometric Detection
    • MultiStep amperometry
  • Galvanostatic Techniques
    • Linear Sweep Potentiometry
    • Chronopotentiometry
    • MultiStep Potentiometry
    • Open Circuit Potentiometry
  • Other
    • Mixed Mode
    • Potentiostatic Impedance Spectroscropy
      • Potential Scan
      • Fixed Potential
      • Time Scan


EmStat4 Potentiostats 

 Part Number  Description
PALM-ES4S-LR.F0 Emstat4S Low Range No EIS
PALM-ES4S-LR.F1 Emstat4S Low Range 200 kHz EIS
PALM-ES4S-HR.F0 Emstat4S High Range No EIS
PALM-ES4S-HR.F1 Emstat4S High Range 200 kHz EIS

 

EmStat4

General

   Low Range  High Range
 Potential Range  ±3 V  ±6 V
 Maximum Compliance Voltage  ±5 V  ±8 V
 Current Ranges  1 nA to 10 mA (8 ranges)  100 nA to 100 mA (7 ranges)
 Maximum Current  ±30 mA  ±200 mA
 Maximum Data Acquisition Rate  1,000,000 samples per second  1,000,000 samples per second

Potentiostat

   Low Range  High Range
 Applied Potential Resolution   100 µV  183 µV
 Applied Potential Accuracy   ≤ 0.2% ±1 mV offset  ≤ 0.2% ±1 mV offset
 Current Ranges  1 nA to 10 mA (8 ranges)  100 nA to 100 mA (7 ranges)
 Measured Current Resolution   0.009% of CR (92 fA on 1 nA range)  0.009% of CR (92 fA on 1 nA range)
 Measured Currenty Accuracy  ≤ 0.2% at Full Scale Range  ≤ 0.2% at Full Scale Range

Galvanostat

   Low Range  High Range
 Current Ranges  10 nA, 1 µA, 100 µA, 10 mA (4 ranges)  1 µA, 100 µA, 10 mA, 100 mA (4 ranges)
 Applied DC Current  ±3x CR (current range)  ±3x CR (current range)
 Appied DC Current Resoloution   0.01% of CR  0.0183% of CR
 Measured DC Current Accuracy  <0.4% (gain) + 0.002x CR (offset)  <0.4% (gain) + 0.002x CR (offset)

 Measured DC Potetnial Resoloution

 

 

 96 µV (gain 1)
 48 µV (gain 2)
 19.2 µV (gain 5)
 9.6 µV (gain 10)
 4.8 µV (gain 20)

193 µV (gain 1)
96.5 µV (gain 2)
38.5 µV (gain 5)
19.3 µV (gain 10)
9.65 µV (gain 20)

FRA/EIS

   Low Range  High Range
 Frequency Range  10 µHz to 200 kHz  10 µHz to 200 kHz
 AC Amplitude Range  1 mV to 900 mV rms, or 2.5 V p-p  1 mV to 900 mV rms, or 2.5 V p-p
 Measured Current Accuracy  ≤ 0.2% at Full Scale Range  ≤ 0.2% at Full Scale Range

Electrometer

   Low Range  High Range
 Electrometer Amplifier   Input  > 1 TΩ // 10 pF  > 1 TΩ // 10 pF
 Bandwidth  10 kHz default or 500 kHz for EIS and   fast CA/CP  10 kHz default or 500 kHz for EIS and   fast CA/CP

Other

Housing: Aluminum body: 7.2 x 5.5 x 2.6 cm3
Weight: ± 130 g
Power and Communication: USB-C port
Internal Storage Space: 500 MB, equivalent to >15,000,000 datapoints

Product Specifications (PDF)