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MultiEmStat

Highly compact multi-channel potentiostat

  • Up to 12 channels available
  • Maximum current for 3 and 3+ version: ±20 mA or ±100 mA
  • potential range: ±3 V or ±4 V
  • compliance voltage: ±5 V or ±8 V
Galvanic Isolation is needed, if you want to use your potentiostat with other potentiostats in the same cell or want to use it for Zero Resistance Amperometry, continue reading
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Galvanic isolation
Without galvanic isolation it is not possible to operate multiple 2- or 3-electrode systems in the same cell. Another reason to use a floating instrument is to avoid ground loops. Furthermore if you want to use your EmStat or PalmSens as a Zero Resistance Ammeter (ZRA), it needs to be floating. With a ZRA you are measuring a current without changing it. There is, however, a disadvantage of galvanic isolation: The noise protection is drastically reduced. Usually all conducting shields connected to the ground act as a Faraday cage for the device and protect it against noise. If the connection between the chassis and the potentiostat is removed, the chassis no longer acts as a Faraday cage for the potentiostat. We recommend galvanic isolation only for customers, who know that they need it and are aware of the drawback.
PalmSens usually responds to your quotation request within one business day.
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Description

The MultiEmStat is a versatile multi-channel potentiostat with 4, 8 or 12 independent EmStat potentiostats. The channels can perform experiments independently of each other.

The MultiEmStat is conveniently connected by means of a single USB connection and controlled by MultiTrace. Each potentiostat has eight (EmStat3) or nine (EmStat3+) current ranges: 1 nA to 10 mA/100 mA with a resolution of 1 pA at the lowest current range and can automatically select the optimal current range.

Accessories

Standard packaging includes a shielded cable for each channel with connections for a working, a counter and a reference electrode by means of 2 mm banana connectors (crocodile clips included), a USB cable and an AC adapter. The four channel MultiEmStat3 will be delivered in a small housing which is USB powered for extra mobility.

For more information about the difference between a multiplexer, a multichannel device and a polypotentiostat, click here.

Galvanic Isolation

The MultiEmStat can optionally be equipped with galvanic isolation (G.I.) for each individual channel. In this case each channel has its own floating ground.

Related

MultiPalmSens4

MultiPalmSens4 multi-channel potentiostat
MultiPalmSens4

Techniques

Voltammetric techniques

  • Linear Sweep Voltammetry (LSV)
  • Cyclic Voltammetry (CV)

Pulsed techniques

  • Differential Pulse Voltammetry (DPV)
  • Square Wave Voltammetry (SWV)
  • Normal Pulse Voltammetry (NPV)

Galvanostatic techniques

  • Open Circuit Potentiometry (OCP)

Amperometric techniques

  • Chronoamperometry (CA)
  • Zero Resistance Amperometry (ZRA)
  • Chronocoulometry (CC)
  • MultiStep Amperometry (MA)
  • Pulsed Amperometric Detection (PAD)
  • Multiple-Pulse Amperometric Detection (MPAD)

 

Missing a technique? Find it in our cross-reference list

Scientific publications

View all publications

Specifications

MultiEmStat3 is available as four channel in the small housing and 8 and 12 channel in the larger housing.
MultiEmStat3+ is available as 4, 8 or 12 channel and always comes in the larger housing.

General MultiEmStat3 MultiEmStat3+
dc-potential range ± 3.000 V ± 4.000 V
compliance voltage ± 5 V ± 8 V
maximum current ± 20 mA typical
and ± 15 mA minimum		 ± 100 mA typical
max. acquisition rate 150000 points/s 150000 points/s
Potentiostat MultiEmStat3 MultiEmStat3+
applied dc-potential resolution 0.1 mV 0.125 mV
applied potential accuracy ≤ 0.2% ±2 mV offset ≤ 0.3% ±3 mV offset
current ranges 1 nA to 10 mA (8 ranges) 1 nA to 100 mA (9 ranges)
measured current accuracy

≤ 1 % of current range at 1 nA

≤ 0.5 % at 10 nA 

≤ 0.2 % at 100 nA to 100 uA

≤ 0.5 % at 1 mA, 10 mA and 100 mA
measured current resolution

0.1 % of current range

1 pA on lowest current range
maximum current ± 20 mA typical
and ± 15 mA minimum		 ± 100 mA typical

The current is measured using a zero resistance ammeter (ZRA).

Electrometer MultiEmStat3 MultiEmStat3+
electrometer amplifier input   > 100 Gohm // 4 pF > 100 Gohm // 4 pF
rise time     approx. 100 μs approx. 100 μs
Other

MultiEmStat3 4-channel

MultiEmStat3+ 4-channel

MultiEmStat3(+) 8-channel

MultiEmStat3(+) 12-channel
housing 115 x 85 x 35 mm3 120 x 210 x 75 mm3
weight  0.260 kg 2 kg
interface USB USB
power external 5V adapter external 9V adapter
sensor connection  shielded cable with circular connector for WE, Sense (MultiEmStat3+), RE and CE

 

Read more

Documents

Software

MultiTrace for Windows

The MultiTrace software gives you full control over the channels of our multi-channel instruments. MultiTrace can be used with multi-channel potentiostats in two different modes; the Individual and Simultaneous mode.

Individual mode

All potentiostats are used independently. Measurements can be started on all channels with one click, or one at a time on individual channels. Each measured curve is shown in its own plot.

Simultaneous mode

All channels run the same measurement at the same time (optionally hardware-synchronized). The measured curves are displayed in a single plot and can be stored together in a single data file or in separate data files.

 

More information about MultiTrace

Software Development Kits

The PalmSens Software Development Kits (SDKs) for .NET can be used with any of our instruments or OEM potentiostat modules to develop your own software. The SDK’s come with a set of examples that shows how to use the libraries.

PalmSens SDKs with examples are available for the following .NET Frameworks:

  • WinForms
  • WPF
  • Xamarin (for Android)
  • UWP

More information about SDKs for .NET

Downloads

Name Type Last updated
Multichannel, polypotentiostat or multiplexer This will help you to choose the ideal multi-channel instrument for your application.application-note08-04-20
Galvanic Isolation In this application note the galvanic isolation options are discussed for the different PalmSens instruments as well as the effect of galvanic isolation on your measurement.application-note08-04-20
MultiEmStat3 and 3+ description Description of the MultiEmStat3 and 3+ multi-channel potentiostat and softwaredocumentation08-04-20

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