EmStat4X

The EmStat4X delivers high performance in a small footprint. The EmStat4X is a small battery and USB-powered Potentiostat, Galvanostat, and optional Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS). The EmStat4X Low Range (LR) version is great for applications that require a low current range down to picoamps, like (bio)sensor research. The High Range (HR) version is very suitable for applications that need a maximum current of up to 200 mA. The EmStat4X is controlled with PSTrace for Windows, or you can write your own MethodSCRIPT and control it from any platform or operating system.

 

 

The EmStat4X LR and HR features include: 

  • Fast EIS support: For running fixed-frequency EIS measurements at a very low interval of around 1 ms. 
  • Auxiliary Port: For connecting to a MUX8-R2 multiplexer, temperature sensor, pH sensor, stirrer control, triggering and more. 
  • iR compensation: To compensate for the iR drop between the Reference electrode and the outside of the double layer of the electrochemical cell. 
  • Bluetooth: For a wireless connection to a PC, smartphone or tablet 
  • 11.1 Wh battery: For more than 8 hours of continuous measurements (typical with the LR). 
  • Small borderless display: Showing the state of the battery and connectivity. 

Two versions 

The EmStat4X comes in two different versions as below. Both versions can be configured with optional EIS/FRA up to 200 kHz. See specifications for a detailed comparison between the LR and HR. 

Low Range: For lower currents and potentials (±30 mA / ±3 V applied / ±5 V compliance) 

High Range: For higher currents and potentials (±200 mA / ±6 V applied / ±8 V compliance) 

Techniques available with PSTrace Software (Included with instrument) 

  • Voltammetric Techniques 
    • Linear Sweep Voltammetry (LSV) 
    • Cyclic Voltammetry (CV) 
    • Fast Cyclic Voltammetry (FCV) 
    • AC Voltammetry (ACV) 
  • Pulsed Techniques 
    • Differential Pulse Voltammetry (DPV) 
    • Square Wave Voltammetry (SWV) 
    • Normal Pulse Voltammetry (NPV) 
  • Amperometric 
    • Chronoamperometry (CA) 
    • Zero Resistance Amperometry (ZRA) 
    • Chronocoulometry (CC) 
    • Pulsed Amperometric Detection (PAD) 
    • MultiStep amperometry (MA) 
    • Fast Amperometry (FAM) 
  • Galvanostatic Techniques 
    • Linear Sweep Potentiometry (LSP) 
    • Chronopotentiometry (CP) 
    • MultiStep Potentiometry (MP) 
    • Open Circuit Potentiometry (OCP) 
  • Other 
    • Mixed Mode (MM) 
    • Potentiostatic Impedance Spectroscropy (EIS/GEIS) 
      • Potential Scan or Current Scan 
      • Fixed Potential or Fixed Current 
      • Time Scan 

Stripping Modes: The voltametric and pulsed techniques can all be used in their stripping modes which are applied for (ultra-) trace analysis. 

 

EmStat4X 

 Part Number  Description
PALM-ES4X-LR.F0  EmStat4X Low Range No EIS with IR - Comp 
PALM-ES4X-LR.F1  EmStat4X Low Range 200 kHz EIS with IR - Comp 
PALM-ES4X-HR.F0  EmStat4X High Range No EIS with IR - Comp 
PALM-ES4X-HR.F1  EmStat4X High Range 200 kHz EIS with IR - Comp 

EmStat4x Accessories

 Part Number  Description
CBL-AUX-AVAN  Aux Cable PalmSens4 / EmStat 4X to an Avantes  
PALM-CBL-MUX08R2-Y-5LV2  Y-Cable MUX8-R2 cable for use with EmStat4X 

 

EmStat4x

General

EmStat4X – General Parameters 

Low Range 

High Range 

 DC 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

 Potentiostat – Parameters 

 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 Current Accuracy 

 ≤ 0.2% at Full Scale Range 

 ≤ 0.2% at Full Scale Range 

Galvanostat

 GALVANOSTAT - Parameters 

 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) 

 Applied DC Current Resolution  

 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 Potential Resolution 

  

  

 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

 FRA/EIS - Parameters 

 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

 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: 11.4 x 8.0 x 4.5 cm
Weight: ~500 g
Communication: USB-C or Bluetooth (4.0 – Dual-Mode)
Internal Storage Space: 500 MB, equivalent to >15,000,000 data points
Battery: 11.1 Wh capacity 80% charge in 2.5 hours, full charge in 3 hours 
Power source: USB-C or internal LiPo battery 

Always a backup feature: 

The EmStat4X is equipped with 500 MB internal storage memory for storing your measurements as a backup. All internally stored measurements can be browsed and transferred back to the PC easily using the PSTrace software for Windows. Your data is always with your instrument wherever you take it. 

A standard EmStat4X includes a rugged carrying case with: 

  • EmStat4X LR or HR 
  • USB-C cable 
  • Cell cable: high quality, double-shielded cable with 2 mm banana connectors for Working, Counter, Reference electrode and Ground, 1 meter long 
  • 4 or 5 crocodile clips 
  • Dummy Cell 

Also included: 

  • PSTrace software for Windows (on USB drive) 
  • Manual (hardcopy) 
  • Quick Start (hardcopy) 
  • Calibration report