MultiEmStat4
Multi-channel Potentiostat / Galvanostat / Impedance Analyzer
- Available with 4, 8 or 12 channels
- FRA / EIS: 10 μHz up to 200 kHz
- Potential range: ±3 V (LR) or ±6 V (HR)
- Max. current: ±30 mA (LR) or ±200 mA (HR)
You'll usually get an answer to your quotation request within one business day.
Description
No Compromises on Productivity and Performance
The MultiEmStat4 is a compact Potentiostat, Galvanostat, and optional Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS) with 4, 8 or 12 channels. The MultiEmStat4 comes in two versions; the Low Range version is great for applications that require a low current range down to 1 nA, whereas the High Range version is very suitable for applications that need a maximum current of 200 mA.
The MultiEmStat4 is controlled with MultiTrace for Windows, or you can write your own MethodSCRIPT and control it from any platform or operating system.
Always a backup
Always a backup
The MultiEmStat4 is equipped with 500 MB internal storage memory on each channel for storing your measurements as a backup. All internally stored measurements can be browsed and transferred back to the PC easily using the MultiTrace software. Your data is always with your instrument wherever you take it.Synchronizing channels in Synched mode
By enabling synchronization of channels and adjusting the setup of your cables, you can use the MultiEmStat4 as a polypotentiostat. This means you can use multiple working electrodes, one counter and one reference electrode in the same cell at the same time. Your working electrodes all perform the same measurement.
Specifications
The MultiEmStat4M is available in two versions: the LR (Low Range) and HR (High Range) version.
| Main differences between the MultiEmStat4 Low and High Range | ||
|---|---|---|
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| Potential range | ±3 V | ±6 V |
| Max. 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
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±5 V | ±8 V |
| Current ranges | 1 nA to 10 mA (8 ranges) | 100 nA to 100 mA (7 ranges) |
| Max. current | ±30 mA | ±200 mA |
| Electrode connections | WE, RE, CE and ground, 2 mm banana plugs |
WE, RE, CE, Sense, and ground, 2 mm banana plugs |
| Hardware options |
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| General | ||
|---|---|---|
| LR | HR | |
dc-potential range
The maximum potential difference, that can be applied between WE and RE.
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±3 V | ±6 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 | ±8 V |
| maximum current | ±30 mA | ±200 mA |
| max. data acquisition rate | 1 000 000 samples /s | |
| Potentiostat | ||
|---|---|---|
| LR | HR | |
| applied potential resolution | 100 µV | 183 µV |
applied potential accuracy
The applied potential accuracy describes how close to the real values your applied potential is.
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≤ 0.2% ±1 mV offset | |
current ranges
A potentiostat measures current. For optimal precision, the range between which currents are measured is split into multiple current ranges. A current range defines the maximum current a potentiostat can measure in a certain range. This means it will also determine the resolution, because the number of bits or rather states is fixed, while the current range is variable.
|
1 nA to 10 mA 8 ranges |
100 nA to 100 mA 7 ranges |
measured current resolution
The lowest observable difference between two values that a measurement device can differentiate between.
|
0.009% of CR (92 fA on 1 nA range) | 0.009% of CR (9.2 pA on 100 nA range) |
| measured current accuracy
The current accuracy describes how close to the real values your measured current is.
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< 0.2% of current ±20 pA ±0.2% of range |
< 0.2% of current ±0.2% of range |
| bandwidth settings | 320 Hz, 3.2 kHz, 30 kHz or 570 kHz | |
| Galvanostat | ||
|---|---|---|
| LR | HR | |
current ranges
A potentiostat measures current. For optimal precision, the range between which currents are measured is split into multiple current ranges. A current range defines the maximum current a potentiostat can measure in a certain range. This means it will also determine the resolution, because the number of bits or rather states is fixed, while the current range is variable.
|
10 nA, 1 uA, 100 uA, 10 mA 4 ranges |
1 uA, 100 uA, 10 mA, 100 mA 4 ranges |
| applied dc-current | ±3 * CR (current range) | |
| applied dc-current resolution | 0.01% of CR | 0.0183% of CR |
| applied dc- current accuracy
The current accuracy describes how close to the real values your measured current is.
|
< 0.4% of current ±20 pA ±0.2% of range |
< 0.4% of current ±0.2% of range |
| potential ranges |
50 mV, 100 mV, 200 mV, 500 mV, 1 V |
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| measured dc-potential resolution |
96 µV at ±3 V (1 V range) |
193 µV at ±6 V (1 V range) |
| measured dc-potential accuracy | ≤ 0.2% ±1 mV offset | |
| bandwidth settings | 320 Hz, 3.2 kHz, 30 kHz or 570 kHz | |
| FRA / EIS | ||
|---|---|---|
| LR | HR | |
| frequency range | 10 µHz to 200 kHz | |
| ac-amplitude range |
1 mV to 900 mV rms, or 2.5 V p-p |
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| measured current accuracy
The current accuracy describes how close to the real values your measured current is.
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≤ 0.2% at Full Scale Range | |
| GEIS | ||
|---|---|---|
| LR | HR | |
| frequency range | 10 µHz to 200 kHz | |
| ac-amplitude range |
0.9 * CR (Arms) |
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| Electrometer | ||
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| LR | HR | |
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.
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> 1 TΩ // 10 pF | |
| bandwidth |
10 kHz default or 500 kHz for EIS and fast CA/CP |
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| Other | ||
|---|---|---|
| LR | HR | |
| electrode connections |
WE, RE, CE, |
WE, RE, CE, S |
| housing |
aluminum body: |
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| weight |
± 3 kg |
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| power + communication |
USB (type B) port |
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| internal storage space per channel |
500 MB, equivalent to > 15M datapoints |
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| MultiEmStat4 LR EIS Accuracy Contour Plot |
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| MultiEmStat4 HR EIS Accuracy Contour Plot |
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Software
MultiTrace for Windows
The MultiEmStat4 comes with MultiTrace for Windows. MultiTrace allows the instrument to be controlled in two different modes: Individual and Simultaneous channel control mode.
Individual mode
The individual mode gives an overview of all channels. Each channel can be selected separately and can run a measurement independently in parallel with other channels. You can also run a script for a sequence of measurements and other actions on each channel.
Simultaneous mode
In the Simultaneous Mode the MultiEmStat4 works with all channels running the same measurement in parallel at the same time. There is only one active method in the Method Editor which is started on all selected channels simultaneously upon start. All results are presented as overlays in the same plot.
Software Development Kits
PalmSens provides several Software Development Kits (SDKs) to help developers create custom software to control their potentiostat. Each SDK comes with documentation and examples that shows how to use the libraries.
SDKs are available for:
- .NET (WinForms, WPF and Xamarin for Android)
- Python
- LabVIEW
- Matlab
MethodSCRIPT™ communications protocol
The MultiEmStat4-series work with MethodSCRIPT™, giving you full control over your potentiostat channels. The simple script language is parsed on-board, which means no DLLs or other type of code libraries are required. MethodSCRIPT™ allows for running all supported electrochemical techniques, making it easy to combine different measurements and other tasks.
MethodSCRIPT can be generated, edited, and executed in PSTrace.
MethodSCRIPT features includes:
- (Nested) loops and conditional logic support
- User code during a measurement iteration
- Exact timing control
- Simple math operations on variables (add, sub, mul, div)
- Data smoothing and peak detection
- Digital I/O, for example for waiting for an external trigger
- Logging results to internal storage or external SD card
- Reading auxiliary values like pH or temperature
- and many more…
Downloads
Documentation (5)
| Name | Last updated | |
|---|---|---|
| MultiEmStat4 Brochure MultiEmStat4 Brochure, a Multi-Channel Potentiostat, Galvanostat and Impedance Analyzer. | 08-01-25 | |
| MethodSCRIPT v1.5 The MethodSCRIPT scripting language is designed to improve the flexibility of the PalmSens potentiostat and galvanostat devices for OEM users. It allows users to start measurements with arguments that are similar to the arguments in PSTrace. PalmSens provides libraries and examples for handling low level communication and generating scripts for MethodSCRIPT devices such as the EmStat Pico and EmStat4. | 25-03-24 | |
| EmStat4M Communication Protocol V1.3 Describes how to communicate with the EmStat4M directly and how to send MethodSCRIPTS. | 25-03-24 | |
| EmStat4M Communication Protocol V1.2 Describes how to communicate with the EmStat4M directly and how to send MethodSCRIPTS. | 01-02-23 | |
| MethodSCRIPT v1.4 The MethodSCRIPT scripting language is designed to improve the flexibility of the PalmSens potentiostat and galvanostat devices for OEM users. It allows users to start measurements with arguments that are similar to the arguments in PSTrace. PalmSens provides libraries and examples for handling low level communication and generating scripts for MethodSCRIPT devices such as the EmStat Pico and EmStat4. | 01-02-23 |
Software (2)
| Name | Last updated | |
|---|---|---|
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MethodSCRIPT code examples
MethodSCRIPT code examples include:
- MethodSCRIPTExample_C - MethodSCRIPTExample_C_Linux - MethodSCRIPTExample_C# - MethodSCRIPTExample_Arduino - MethodSCRIPTExample_Python - MethodSCRIPTExample_iOS - MethodSCRIPTExample_Android Every code example comes with a "Getting Started" document. |
07-07-24 | |
| MultiTrace – PC Software for all Multi-channel instruments The MultiTrace software controls the individual channels of our multi-channel instruments. You can also combine multiple single-channel instruments. | 17-03-22 |
Application Note (1)
| Name | Last updated | |
|---|---|---|
| Multi-Channel: Multiple Working Electrodes in the Same Cell Learn how to use a multi-channel potentiostat as a polypotentiostat, so you can use multiple working electrodes in the same cell sharing one reference and counter electrode. | 19-01-22 |