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    EmStat3 Module

    EmStat3 Module

    Research grade single-channel potentiostat module

    • Small tested & calibrated potentiostat module
    • Compliance voltage ±5 V
    • Maximum current ±20 mA
    • Development SDK available
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    Description

    The EmStat3 is a research-grade potentiostat that was initially developed for OEM purposes. The EmStat3 is a reliable and versatile potentiostat that found its way to the market in many different forms. 

    EmStat3 is succeeded by the EmStat4M
    Looking for a higher potential range, EIS or MethodSCRIPT? The EmStat3 is succeeded by the EmStat4S. A USB powered potentiostat / galvanostat with EIS. The EmStat3 is still available.

    The EmStat3 module is successfully integrated into devices for specific applications, but also in our own product range that we sell for generic research purposes such as the EmStat Blue, EmStat Go, and MultiEmStat. The main difference between the EmStat3 and EmStat3+ is the extra current range of 100 mA for the EmStat3+ module.

    Techniques

    Voltammetric techniques

    Linear Sweep Voltammetry (LSV)
    In Linear Sweep Voltammetry a potential scan is performed from the begin potential, to the end potential. The voltage during the scan increases with small potential steps. Continue reading
    Cyclic Voltammetry (CV)
    Cyclic voltammetry is a known method of demonstrating the presence of a substance in a given liquid by drawing a graph with a characteristic wavy line. Continue reading

    Pulsed techniques

    Differential Pulse Voltammetry (DPV)
    In Differential Pulse Voltammetry a potential scan is made using pulses with a constant amplitude of E pulse superimposed on the dc-potential. Continue reading
    Square Wave Voltammetry (SWV)
    Square Wave Voltammetry is a special version of Differential Pulse Voltammetry is, where the pulse time is equal to half the interval time. Continue reading
    Normal Pulse Voltammetry (NPV)
    In Normal Pulse Voltammetry (NPV) a potential scan is made by making constantly larger potential steps of pulse. Continue reading

    Amperometric techniques

    Chronoamperometry (CA)
    The instrument applies a constant dc-potential and the current is measured with constant interval times. Continue reading
    Chronocoulometry (CC)
    Chronocoulometry is an electrochemical technique during which a potential is set. Continue reading
    MultiStep Amperometry (MA)
    MultiStep Amperometry (MA) is an electrochemical technique which simply allows the user to specify the number of potential steps they want to apply and how long each step should last. Continue reading
    Pulsed Amperometric Detection (PAD)
    With Pulsed Amperometric Detection a series of pulses (pulse profile) is periodically repeated. Pulsed Amperometric Detection can be used when higher sensitivity is required. Continue reading

    Potentiometric techniques

    Open Circuit Potentiometry (OCP)
    Open Circuit Potential (OCP) is the potential where no current is flowing, because the circuit is open. Continue reading

    Impedimetric techniques

    Potentiostatic Electrochemical Impedance Spectroscopy
    (PEIS)
    During a conventional EIS (PEIS) a potential sine wave is applied and the resulting current is measured. Continue reading
    DC-potential sweep
    The Impedance is measured at a fixed frequency, varying the DC-potential (also called DC-Bias or DC-level). This setup is the same as for Mott-Schottky, but currently our software doesn't support data plotting as required for Mott-Schottky.
    Impedance time scan
    The Impedance is measured versus time, at a fixed frequency. Continue reading

    Other

    Mixed Mode (MM)
    Mixed Mode is a flexible technique that allows for switching between potentiostatic, galvanostatic, and open circuit measurements during a single run. Continue reading
    Custom techniques (MethodSCRIPT)
    MethodSCRIPT gives you full control over the instrument. It allows you to customize and combine measurement techniques and perform actions including using on-board storage, data analysis and controlling external peripherals. Continue reading
    Missing a technique? See cross-reference list

    Specifications

    The EmStat3 module features:

    • 9 embedded common electrochemical techniques
    • options for manual cell control (potentials, changing current range and timing)
    • USB and serial communication or USB as Virtual COM port
    • automatic current ranging
    • digital I/O for peripheral control (stirrer or valve)
    • analog input for measuring auxiliary input like temperature
    • analog output for controlling peripherals like a stirrer
    • multiplexer control
    General
    dc-potential range
    The maximum potential difference, that can be applied between WE and RE.
    		± 3.000 V
    compliance voltage
    The compliance voltage is the maximum voltage that can be applied between the working and counter electrode. Another name could be the maximum cell potential. Continue reading
    		± 5 V
    dc-potential resolution 0.1 mV
    dc-potential accuracy 0.2 %
    current ranges
    A current range defines the maximum current a potentiostat can measure in a certain range. Continue reading
    		1 nA to 10 mA (8 ranges)
    maximum current ± 20 mA typical
    and ± 15 mA minimum

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

    More specifications
    current resolution 0.1% of current range, 1 pA at lowest current range
    current accuracy
    The current accuracy describes how close to the real values your measured current is. Continue reading
    (deviation)    		 ≤ 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
    all with max. 0.2 % offset error
    electrometer amplifier input
    The amplifier input resistance of the amplifier in the electrometer determines the load that the amplifier places on the source of the signal being fed into it. Ideally the resistance is infinite, and the load to be zero to not to influence your measurement.
            		  > 100 Gohm // 4 pF
    rise time     approx. 100 μs
    power ES3: 5V, max. 130 mA
    ES3+: 5V, max. 500 mA
    external I/O options analog: 1 input and 1 output
    both 0 V- 4.096 V
    digital: 4 in/output lines
    max. rating: -0.3 V to 5.3 V
    PCB dimensions ES3: 51.5 x 34 mm
    ES3+: 55 x 41 mm

    Software Development

    Develop software for PC, smartphone or microcontroller

    Whether you want to write a simple or advanced Windows application, develop an Android or iPhone app or integrate the EmStat in your own hardware, you can do it with our Software Development Tools and code examples.

     

    Overview of software development tools

    Software Development Kits for .NET

    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)
    SDKs for .NET

    Extensions

    The MUX8 multiplexer is meant for use with 2- or 3- electrode sensors or cells up to 8 channels. The MUX8 module allows to switch:

    • 8x WE, 8x RE, 8x CE
    • 8x WE, 8x RE+CE joint together
    • 8x WE with fixed RE and CE

    The MUX8 can be mounted directly to the EmStat3 potentiostat module as shown below. Or it can be connected via short wires or flat cable. 

    Development

    The MUX8 module can be mounted directly on the EmStat Development board. Connections to  different cells can be made using the screw terminals on the development board. The available libraries for software development are also made compatible with the MUX8 module.

    IMPORTANT REMARK

    It is not possible to apply a potential simultaneously to more than one sensor or cell each with three electrodes. This requires a multi-channel potentiostat, having one potentiostat for each channel. Virtual simultaneous measurements (by means of fast switching, but maintaining potentials) using a multiplexer are possible with two electrode sensors or cells, so when combined counter and reference electrodes are applied.

    You may also like…

    Downloads
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    Software (6)

    Name Last updated
    PSTrace PC software for all single channel instruments PSTrace software is shipped as standard with all single channel and multiplexed instruments. The software provides support for all techniques and device functionalities. 08-07-24
    PalmSens SDK for Python PalmSens Python SDK 5.12 with support for instruments from PalmSens BV on Windows systems. 07-11-22
    Getting started with PalmSens SDK for WPF This manual explains how to use the SDK with the included libraries and examples. 07-06-21
    Getting started with PalmSens SDK for WinForms This manual explains how to use the SDK with the included libraries and examples. 07-06-21
    Getting started with PalmSens SDK for Android This manual explains how to use the SDK with the included libraries and examples. 07-06-21
    Embedded SDK for EmStat3 An example project of how to use the SDK is provided for Arduino. It's made in "Arduino Software (IDE)" found at "www.arduino.cc". For more information about the example, read the comments in "EmStatSDKExample.ino". A short explanation with an example of how to use the SDK in any c/c++ environment can be found in PSComm.h. The Arduino example should also be easy to port to C or C++, if required. For more advanced use beyond the scope of the SDK, refer to the "EmStat communication protocol##.pdf". 09-04-20

    Application Note (2)

    Name Last updated
    Migrating to the EmStat4M LR or HR This Application note shows the differences between our older and latest EmStat modules which are relevant when switching your software and electronics design to work with the EmStat4 LR or HR. 06-10-22
    Wireless communication module for EmStat3 OEM Describes how to use the Wireless communication module for EmStat3 OEM 09-04-20

    Documentation (4)

    Name Last updated
    EmStat3 communications protocol The EmStat3 and EmStat3+ communications protocol for OEM for firmware v7.6 28-09-20
    EmStat3 module dimensions Drawing with dimensions of EmStat3 PCB (PDF) 11-08-20
    EmStat3 module Brochure EmStat3 module Brochure 09-04-20
    EmStat3 series Brochure 08-04-20

    Other (1)

    Name Last updated
    EmStat3 3D Model A STEP file of the EmStat3 model 11-08-20
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    EmStat3 module Brochure

    EmStat3 module Brochure
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