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  11. EmStat4X

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 measuring low currents 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.

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EmStat4X

Features
Specifications
Techniques
Document
Industries
Spares and accessories
Related products

Features

  • Potential range ±3 V or ±6 V
  • Max. current ±30 mA or ±200 mA
  • Wireless control
  • Extendable with multiplexer
  • iR compensation
  • Fast EIS support
  • Auxiliary Port
  • Bluetooth
  • 11.1 Wh battery
  • Small borderless display

Specifications

EmStat 4X×LR™

EmStat 4X×HR™
Main differences between the EmStat4X Low and High Range
Potential range

±3 V

±6 V
Max.  compliance voltage

±5 V

±8 V
Current ranges

1 nA to 10 mA (8 ranges)

100 nA to 100 mA (7 ranges)
Max. current

±30 mA

±200 mA
Electrode connections

WE, RE, CE and ground,
2 mm banana plugs

WE, RE, CE, Sense, and ground,
2 mm banana plugs
General
dc-potential range

±3 V

±6 V
compliance voltage

±5 V

±8 V
maximum current

±30 mA

±200 mA
max. data acquisition rate

1 000 000 samples /s
control loop bandwidth (stability setting)

320 Hz, 3.2 kHz, 30 kHz or 570 kHz
current follower bandwidth

 

23 Hz in 1 nA and 10 nA range
2.3 kHz in 100 nA and 1 uA range
230 kHz in 10 uA and 100 uA range
> 500 kHz in ranges 1 mA and higher
Potentiostat
applied potential resolution

100 µV

183 µV
applied potential accuracy

≤ 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)
measured current accuracy

< 0.2% of current

±20 pA  ±0.2% of range

< 0.2% of current

±0.2% of range
Galvanostat
current ranges

10 nA, 1 uA, 100 uA, 10 mA

4 ranges

1 uA, 100 uA, 10 mA, 100 mA

4 ranges
applied dc-current

±3 * CR (current range)
applied dc-current resolution

0.01% of CR

0.0183% of CR
applied dc-current accuracy

< 0.4% of current

±20 pA  ±0.2% of range

< 0.4% of current

±0.2% of range
potential ranges

50 mV, 100 mV, 200 mV, 500 mV, 1 V
measured dc-potential resolution

96 µV at ±3 V (1 V range)
48 µV at ±1.5 V (500 mV)
19.2 µV at ±0.6 V (200 mV)
9.6 µV at ±0.3 V (100 mV)
4.8 µV at ±0.150 V (50 mV)

193 µV at ±6 V (1 V range)
96.5 µV at ±3 V (500 mV)
38.5 µV at ±1.2 V (200 mV)
19.3 µV at ±0.6 V (100 mV)
9.65 µV at ±0.3 V (50 mV)
measured dc-potential accuracy

≤ 0.2% potential ±1 mV offset
FRA / EIS
frequency range

10 µHz to 200 kHz
ac-amplitude range

1 mV to 900 mV rms, or 2.5 V p-p
measured current accuracy

≤ 0.2% at Full Scale Range
GEIS
frequency range

10 µHz to 100 kHz
ac-amplitude range

0.9 * CR (Arms)
Electrometer
electrometer amplifier input

> 1 TΩ // 10 pF
bandwidth

500 kHz
iR compensation
method used for iR-drop compensation

Positive Feedback
resolution of MDAC used for correcting potential

12-bit
Max. compensated resistance

1 MOhm
Other
electrode connections

WE, RE, CE,
and ground,
with 2 mm banana plugs

WE, RE, CE, S
and ground,
with 2 mm banana plugs
power consumption

Typical: 1W (idle)
Max: 1.6W (cell on at 30 mA)

Typical: 1.5W (idle)
1.6W (cell on at 10 mA)
Max: 4.6W (cell on at 200 mA)
battery

11.1 Wh capacity
80% charge in 2.5 hours, full charge in 3 hours
power source

USB-C or internal LiPo battery
communications

USB-C or Bluetooth (4.0 – Dual-Mode)
housing

aluminum body:
11.4 x 8.0 x 4.5 cm
weight

~500 g
internal storage space

500 MB, equivalent to > 15M datapoints
Auxiliary port (D-Sub 15)

analog input

±10 V, 16-bit
analog output

0-6 V, 12 bit
4 digital outputs

0-3.3 V
1 digital input

0-3.3 V
i-out and E-out

raw output of current and potential
E-out ±5 V (LR) ±8 V (HR)
i-out ±3 V
power

5 V output (max. 300 mA)

Techniques

Voltammetric techniques
  • Linear Sweep Voltammetry (LSV)
  • Cyclic Voltammetry (CV)
  • Fast Cyclic Voltammetry (FCV)
  • AC Voltammetry (ACV)
Amperometric techniques
  • Chronoamperometry (CA)
  • Zero Resistance Amperometry (ZRA)
  • Chronocoulometry (CC)
  • MultiStep Amperometry (MA)
  • Fast Amperometry (FAM)
  • Pulsed Amperometric Detection (PAD)
  • Multiple-Pulse Amperometric Detection (MPAD)
Galvanostatic techniques
  • Linear Sweep Potentiometry (LSP)
  • Chronopotentiometry (CP)
  • MultiStep Potentiometry (MP)
  • Open Circuit Potentiometry (OCP)
  • Stripping Chronopotentiometry (SCP or PSA)
Pulsed techniques
  • Differential Pulse Voltammetry (DPV)
  • Square Wave Voltammetry (SWV)
  • Normal Pulse Voltammetry (NPV)
Other
  • Mixed Mode (MM)
  • Potentiostatic/Galvanostatic Impedance spectroscopy (EIS/GEIS)

1. Potential scan or current scan

2. Fixed potential or fixed current

3. Time scan

  • Fast EIS / GEIS

Manufacturers

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Document

EmStat4X Brochure

Industries

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