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MUX8-R2

Multiplexer for 8 cells

  • Automatically switch between electrochemical cells
  • Easy stacking with magnetic feed and top
  • 4 different electrode or sensor configurations
  • Daisy chain multiplexers, up to 128 channels!
All specifications
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Description

The PalmSens series and EmStat Blue can be used to work with multiple working electrodes or a sensor array by means of a multiplexer. The multiplexer switches between the working electrodes in the range of milliseconds. There are two versions of the multiplexer available.

MUX8-R2 multiplexer: enables to work with up to eight 2- or 3- electrode systems.

MUX16 multiplexer: enables to work with up to sixteen 2- electrode systems. The 16 working electrodes can have a shared counter and reference electrode, or each working electrode is matched with its own combined reference/counter electrode. If only the working electrodes are switching, one reference and one counter electrode shared by all working electrodes is a possible configuration.

The MUX8-R2 is the successor of our popular MUX8. The design has been revised and improved leading to several new features.

  • improved performance for OCP measurement
  • reduced charge injection by switching
  • all hardware settings are controlled by the software making it unnecessary to flick a physical switch
  • allows to be used with the new 4-in-1 cell cables (easier and better connections), i.e. MUX8 Connection Terminal is not needed
  • allows to connect auxiliary input (like temperature sensor)
  • LEDs to show which channel is selected
  • daisy chaining multiple MUX8-R2 boards (expansion up to 128 channels)

Connection

The most selected connection option uses two double shielded D-Sub cables ending in 2 mm banana plugs. As alternatives we can provide a PCB with screw terminalsD-Sub cable ending in ferrules or Screen Printed Electrode Adapter. Each of these cables can be connected to 4 channels, if all 8 channels are used, two cables are needed.

 

Cable connections

 System
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

 

The MUX8-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-CInput for extra power when
≥3 multiplexers are daisy-chained
Channel 1-4Connects to sensor cables 1-4
Channel 5-8Connects to sensor cables 5-8

 

Downloads

NameTypeLast updated
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
EmStatMUX8-R2 Description Description of the EmStatMUX8-R2 instrument08-04-20

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