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EmStatMUX8-R2

USB powered potentiostat with integrated multiplexer

  • potentiostat with integrated 8 channel multiplexer
  • potential range: ± 3V or ± 4V
  • compliance voltage: ± 5V or ± 8V
  • current ranges:  1 nA – 100 mA
  • maximum current: ± 100 mA
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PalmSens usually responds to your quotation request within one business day.

Description

With the EmStat3MUX8-R2 you can connect arrays or other setups made of up to eight working electrodes in two or three electrode cell types. If more channels are required, one or more MUX-R2 can be stacked to the EmStatMUX8-R2 for a total of up to 128 channels.

The potentiostat is controlled as well as powered by USB and is used with PSTrace. The MUX8-R2 can sample different cells at a rate of 25 ms/cell. Usually a method needs to be finished to switch the cell but the fast sampling per cell makes it possible to measure time depending techniques, e.g. chronoamperometry, practically simultaneously. Via the script window of PSTrace it is also possible to perform a different experiment on each of the channels sequentially.

To make it easier for you to decide, if  a multiplexer or a multichannel device is more suitable for your application, we have created a short explanation of multiplexers, multichannels and polypotentiostats.

Techniques

Voltammetric techniques

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

Pulsed techniques

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

Amperometric techniques

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

Galvanostatic techniques

  • Open Circuit Potentiometry (OCP)
Missing a technique? Find it in our cross-reference list

Cell connections

There are four ways to connect your sensor. These sensor connections are quoted separately. 

  • Option A: Double shielded sensor cables with 2 mm banana connectors. The 2 mm banana connectors are compatible with standard croc clips (they will be included in the quotation as optional).
  • Option B: High-density cable that terminates in ferrules
  • Option C: Connection (Screw) Terminal  to assemble your own wires.
  • Option D: Screen Printed Electrode Connector

Each of these connection options can be used to connect 4 channels. When you add the EmStatMUX8 in the quotation basket we will make sure to include two units of the selected connection option so you can connect all 8 channels to the electrochemical cells. 

Specifications

With EmStat potentiostat version:33+
dc-potential range± 3.000 V± 4.000 V
compliance voltage± 5 V± 8 V
dc-potential resolution0.1 mV0.125 mV
dc-potential accuracy0.2 %0.3 %
current ranges1 nA to 10 mA (8 ranges)1 nA to 100 mA (9 ranges)
maximum current± 20 mA typical
and ± 15 mA minimum
± 100 mA typical

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

Potentiostat (controlled potential mode)
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
all with max. 0.2 % offset error
measured current resolution0.1 % of current range
Electrometer
electrometer amplifier input> 100 GΩ // 4 pF
rise timeapprox. 100 us
Integrated MUX8-R2 Multiplexer
number of channels 8 (up to 128 when daisy chained)
multiplexerswitches 8 x (WE, S, RE and CE)
on resistance for WE1.5 ohm typical
charge injection on WE20 pC typical
leakage current< 20 pA (5 pA typical) at 25 ºC
switching time2 ms
compliance voltage± 10 V
Other
housingaluminium: 138 mm x 121 mm x 37 mm
weight +/- 500 g
temperature range0 ºC to + 50 ºC
power supplyUSB
communicationUSB-C

The EmStatMUX8-R2 has the following connections:

ConnectorFunction
InputY-cable connects to both potentiostat sensor connector and (digital) AUX
AUXCan be used to measure auxiliary input like temperature or pH, and to switch external hardware using two digital control lines that can be set in PSTrace
LinkConnects to Input of next multiplexer, for daisy-chaining multiple multiplexers.
USB-CFor connecting to PC or Android device
Channel 1-4Connects to sensor cables 1-4
Channel 5-8Connects to sensor cables 5-8

 

Software

PSTrace Method Editor

PSTrace

PSTrace for Windows provides support for all techniques and device functionalities. With a smooth simple interface, showing only the applicable controls, PSTrace is suitable for all levels of user experience. Functions include:

  • Direct validation of method parameters
  • Equivalent Circuit Fitting
  • Automated peak search
  • Scripting for running an automated sequence of measurements
  • Open data in Origin and Excel with one click of a button
  • Browse measurements on PalmSens4’s internal storage

More information about PSTrace

PStouch

PStouch works with all our single channel and multiplexed instruments. PStouch functions include:

  • Setting up and running measurements
  • Analysing and manipulating peaks
  • Sharing data directly via e-mail, Dropbox, or any other file sharing service
  • All files compatible with PSTrace

 

Get it on Google Play

More information about PStouch

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

NameTypeLast updated
EmStatMUX8-R2 Description Description of the EmStatMUX8-R2 instrument16-11-20
App Note – Multichannel, polypotentiostat or multiplexer This will help you to choose the ideal PalmSens multi-channel instrument for your application.08-04-20
OCP with MUX8-R2 Describes how to perform an OCP measurement on multiple channels of the MUX8-R208-04-20

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