Potentiostat portable EMSTAT 4S

Description

Caractéristiques

• L’EmStat4S est un potentiostat, un galvanostat et un analyseur de réponse en fréquence (FRA) portable alimenté par USB pour la spectroscopie d’impédance électrochimique (SIE).
• La version Low Range de l’EmStat4S est idéale pour les applications qui nécessitent une gamme de courant faible jusqu’à 1 nA, tandis que la version High Range est très adaptée aux applications qui nécessitent un courant maximum jusqu’à 200 mA.

Spécifications techniques

CA

Interval time 0.4 ms 300 s

CP

Run time 1 ms > year

HR

0.01 mV/s (183 μV

PAD

Interval time 50 ms 300 s

SWV

Frequency 1 Hz 2500 Hz

plugs

plugs

weight

+/- 130 g

(unless

Deposition time 0 4000 s

PSTrace

Software for Windows........................................................................ 4

housing

aluminum body:

storage

RAM (64-bit)

4 ranges

4 ranges

8 ranges

7 ranges

N cycles

1 20,000

N levels

1 255

model LR

HR

Electrode

WE, RE, CE, WE, RE, CE, S,

Parameter

Min Max

bandwidth

10 kHz default or

Pulse time

1 ms 1 s

and ground,

and ground,

connections

and ground, and ground,

Max. current

± 30mA

100 uA, 10 mA

10 mA, 100 mA

N data points

1,000,000

All techniques

Conditioning time 0 4000 s

Current ranges

1 nA jusqu’à 10 Ma (8 ranges)

current ranges

10 nA, 1 uA, 1 uA, 100 uA,

▪ Mixed Mode

MM

48 μV (gain 2)

96.5 μV (gain 2)

Level switching

+/-1 ms

Max. compliance

±5 V ±8 V

Potential range

± 3V

frequency range

10 μHz to 200 kHz

maximum current

±30 mA ±200 mA

LSV Scan rate LR

0.01 mV/s (100 μV 500 V/s (200 mV step)

NPV Scan rate LR

0.1 mV/s (100 μV 1 V/s (5 mV step)

with 2 mm banana

with 2 mm banana

19.2 μV (gain 5)

38.5 μV (gain 5)

2 mm banana plugs

2 mm banana plugs

4.8 μV (gain 20)

9.65 μV (gain 20)

9.6 μV (gain 10)

19.3 μV (gain 10)

Step potential LR

0.100 mV 250 mV

Equilibration time

0 4000 s

Pulse potential LR

0.100 mV 250 mV

ac-amplitude range

0.9 * CR A rms

applied dc-current

±3 * CR (current range)

compliance voltage

±5 V ±8 V

dc-potential range

±3 V ±6 V

▪ AC Voltammetry

ACV

0.002 * CR (offset)

0.002 * CR (offset)

auto ranging and the

if curves with different

▪ Chronocoulometry

CC

▪ Fast Amperometry

FAM *

electrode connections

WE, RE, CE, WE, RE, CE, S

power + communication

USB-C port

▪ Chronoamperometry

CA

Electrodes connections

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

Impedance spectroscopy

EIS/GEIS *

internal storage space

500 MB, equivalent to >15M datapoints

▪ Cyclic Voltammetry

CV

Max. compliance voltage

± 5V

starting current range.

units are available.

▪ Chronopotentiometry

CP

methods to a single file

64-bit (x64) processor

Select current ranges for

Switch between plots

measured current accuracy

≤ 0.2% at Full Scale Range

▪ MultiStep Amperometry

MA

applied potential accuracy

≤ 0.2% ±1 mV offset

max. data acquisition rate

1M samples/s

applied dc-current accuracy

<0.4% (gain) + <0.4% (gain) +

measured current resolution

0.009% of CR (92 fA on 1 nA range)

▪ Fast Cyclic Voltammetry

FCV *

▪ MultiStep Potentiometry

MP

▪ Square Wave Voltammetry

SWV

applied potential resolution

100 μV 183 μV

electrometer amplifier input

> 1 TΩ // 10 pF

▪ Linear Sweep Voltammetry

LSV

▪ Normal Pulse Voltammetry

NPV

applied dc-current resolution

0.01% of CR 0.0183% of CR

measured dc-potential accuracy

≤ 0.2% ±1 mV offset

▪ Linear Sweep Potentiometry

LSP

▪ Open Circuit Potentiometry

OCP

▪ Zero Resistance Amperometry

ZRA

measured dc-potential resolution

96 μV (gain 1) 193 μV (gain 1)

▪ Pulsed Amperometric Detection

PAD

▪ Stripping Chronopotentiometry

SCP or PSA *

▪ Differential Pulse Voltammetry

DPV

▪ Automating tasks and measurements

▪ Windows 7, 8, or 10 (32-bit or

▪ Equivalent Circuit Fitting for EIS

Minimum PC requirements are:

The EmStat4S is available in two versions

the LR (Low Range) and

▪ Multiple-Pulse Amperometric Detection

MPAD *

▪ Browse measurements on EmStat4’s internal

▪ 1 GB RAM (32-bit) or 2 GB

▪ Save all available curves, measurement data, and

▪ 1 GHz or faster 32-bit (x86) or

▪ Open your data in Origin and Excel with one click

64-bit)

Applications

• Détection de polluants : Pour mesurer la concentration de métaux lourds dans l’eau ou des pesticides dans le sol.
• Contrôle de la corrosion : Pour évaluer la résistance à la corrosion de matériaux en extérieur ou sur des structures industrielles.
• Recherche et développement : Pour les tests de batteries et de piles à combustible, où le besoin de collecter des données sur le terrain est prioritaire.