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The EmStat3+ is a research grade potentiostat that was initially
developed for OEM purposes. The EmStat3+ is a reliable and versatile
potentiostat that found it’s way to the market in many different forms.
The EmStat3+ module is successfully integrated in 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

When only one module is added in the basket we will quote
the EmStat3+ Starter Kit which includes all the components you
need for rapid prototyping and hardware validation

The following techniques are supported by the EmStat module:

Voltammetric techniques:

  • Linear Sweep Voltammetry (LSV)
  • Differential Pulse Voltammetry (DPV)
  • Square Wave Voltammetry (SWV)
  • Normal Pulse Voltammetry (NPV)
  • Cyclic Voltammetry (CV)

These methods can all be used in their stripping modes which are applied for (ultra-) trace analysis.

Techniques as a function of time:

  • Chronoamperometry (CA)
  • Pulsed Amperometric Detection (PAD)
  • Multiple Pulse Amperometry (MPAD)
  • Open Circuit Potentiometry (OCP)

The EmStat module can be used with our PSTrace software for Windows. This allows you to evaluate its capabilities before starting your development project. 

Software can be developed in any language or for any platform by means of the EmStat Communication protocol. A C library which implements the EmStat Communication protocol is also available. Other available code example and libraries include:

  • .NET (WinForms and UWP)
  • Matlab
  • Arduino


The EmStat 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

EmStat3 and EmStat3+ are also available as stand-alone instrument for research or OEM evaluation.

EmStat version: 3 3+
dc-potential range ± 3.000 V ± 4.000 V
compliance voltage ± 5 V ± 8 V
dc-potential resolution 0.1 mV 0.125 mV
dc-potential accuracy 0.2 % 0.3 %
current ranges 1 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).

current resolution 0.1% of current range, 1 pA at lowest current range
current accuracy (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 and 100 mA
all with max. 0.2 % offset error
electrometer amplifier input       > 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

Have a technical question?
Speak to one of our engineers.

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