PalmSens4
Compact, versatile and powerful
- (Bi)Potentiostat / Galvanostat / Impedance Analyzer
- FRA / EIS: 10 μHz up to 1 MHz
- 9 current ranges: 100 pA to 10 mA
- 18-bit resolution
- Bluetooth or USB connection
BiPot stands for BiPotentiostat, which is a potentiostat with two working electrodes. A bipotentiostat can use two working electrodes, one reference and one counter in the same cell. The two working electrodes can be operated and monitored exactly at the same time. Working electrode 1 performs any of the supported techniques (see below), while working electrode 2 can either have its own constant potential or follow the working electrode 1’s potential. In the latter case a potential offset can be added.
The resistance between the reference electrode and the double layer of the specimen can cause a significant potential drop, decreasing the applied potential where it is required. The module provides positive feedback to compensate for the IR drop between the Reference electrode and the outside of the double layer of the electrochemical cell.
Description
Our flagship instrument, the PalmSens4, is a USB and battery powered Potentiostat, Galvanostat, and optional a Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS). The PalmSens4 has a large potential range (-5V to 5V or -10V to 10V) and current range (100 pA to 10 mA) with a high resolution and low noise. The economical PalmSens4 is a complete laboratory instrument but its compact and rugged design makes it also ideal for field work. Connecting via Bluetooth guarantees a perfectly floating measurement.
Configurable
PalmSens4 comes in different configurations:
- ±5 V or ±10 V potential range
- EIS/FRA with maximum frequency of 100 kHz or 1 MHz
- optional BiPotentiostat module for second WE
- optional iR-Compensation
Standard included
- Rugged carrying case
- High quality, double shielded cell cable with
2 mm banana connectors for Working, Counter, Reference electrode and Ground - Crocodile clips
- Dummy cell
- USB cable
- Manual and Quick Start document
- PSTrace software for Windows
Always a backup
Every PalmSens4 is equipped with an internal storage of 8 GB. This means all your measurements* can automatically be saved on-board as backup.Measurements can be browsed and transferred to the PC easily using the PSTrace software for Windows.
* Not supported for on-device backup: EIS, MultiStep and MixedMode
Accessories
Accessories for PalmSens4
You may also like…
PalmSens4 on-board the International Space Station
The PalmSens4 potentiostat is extremely robust and reliable and was selected for NASA expedition 63. It was launched into space on 9 April 2020 being part of a scientific experiment on-board the International Space Station.
Read more
Specifications
| General | ||
|---|---|---|
| configuration | PS4.F#.05 | PS4.F#.10 |
dc-potential range
The maximum potential difference, that can be applied between WE and RE.
|
±5 V | ±10 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
|
±10 V | |
| maximum current | ±30 mA (typical) | |
| Potentiostat (controlled potential mode) | |
|---|---|
applied dc-potential resolution
The lowest observable difference between two values that a measurement device can differentiate between.
|
76.3 µV ( 18-bit )
A potentiostat has to convert real-world measurements into a binary format to use them. The number of bits the real world measurement is converted to, is one of the determining factors for the resolution of a potentiostat. A potentiostat with 18 bits, can measure the potential and current in 2^18 or roughly 262 thousand different steps. Continue reading
|
applied potential accuracy
The applied potential accuracy describes how close to the real values your applied potential is.
|
≤0.1% ±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.
|
100 pA to 10 mA (9 ranges) |
current accuracy
The current accuracy describes how close to the real values your measured current is.
|
< 0.2% of current ±10 pA ±0.1% of range |
measured current resolution
The lowest observable difference between two values that a measurement device can differentiate between.
|
0.005 % of current range ( 18-bit , 5 fA on 100 pA range)
A potentiostat has to convert real-world measurements into a binary format to use them. The number of bits the real world measurement is converted to, is one of the determining factors for the resolution of a potentiostat. A potentiostat with 18 bits, can measure the potential and current in 2^18 or roughly 262 thousand different steps. Continue reading
0.0025% of 10 mA range |
| Galvanostat (controlled current mode) | |
|---|---|
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) |
| applied dc-current | ±6 times applied current range |
| applied dc-current resolution | 0.0076% of applied current range (<10 mA) 0.0038% of 10 mA range |
| applied dc- current accuracy
The current accuracy describes how close to the real values your measured current is.
|
< 0.2% of current ±10 pA ±0.1% of range |
| potential ranges | 10 mV, 100 mV, 1 V |
| measured dc-potential resolution | 78.13 μV at ±10 V 7.813 μV at ±1 V 0.7813 μV at ±0.1 V |
| measured dc-potential accuracy | ≤ 0.05% or ±1 mV (for |E| < ±9 V) ≤ 0.2% (for |E| ≥ ±9 V) |
| FRA / EIS (impedance measurements) | ||
|---|---|---|
| Configuration | PS4.F0.## | PS4.F1.## |
| frequency range | 10 μHz to 100 kHz | 10 μHz to 1 MHz |
| ac-amplitude range | 1 mV to 0.25 V rms, or 0.7 V p-p | |
| GEIS (galvanostatic impedance measurements) | |
|---|---|
| frequency range | 10 μHz to 100 kHz |
| ac-amplitude range | 0.001 x CR to 0.4 x CR (<10 mA) 0.001 x CR to 0.2 x CR (10 mA) (CR = current range) |
| Electrometer | |
|---|---|
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.
|
> 1 TΩ // 10 pF |
bandwidth
The range of frequencies between which you can measure. Continue reading
|
1 MHz |
| Other | |
|---|---|
| housing | aluminium with rubber sleeve: 15.7 x 9.7 x 3.5 cm3 |
| weight | +/- 500 g |
| temperature range | 0 ºC to + 50 ºC |
| power supply | USB or internal LiPo battery |
| communication | USB and Bluetooth (Dual Mode) |
| battery time | > 16 hours idle time > 4 hours with cell on at max. current extendable by means of power bank |
| internal storage space | 8 GB or +/- 800000 measurements incl. method info (assuming 200 data points per measurement) |
| Auxiliary port (D-Sub 15) | |
|---|---|
| analog input | ±10 V, 18-bit
A potentiostat has to convert real-world measurements into a binary format to use them. The number of bits the real world measurement is converted to, is one of the determining factors for the resolution of a potentiostat. A potentiostat with 18 bits, can measure the potential and current in 2^18 or roughly 262 thousand different steps. Continue reading
|
| analog output | 0-10 V, 12 bit (1 kOhm output impedance) |
| 4 digital outputs | 0-5 V |
| 1 digital input | 0-5 V |
| i-out and E-out | raw output of current and potential E-out ±10 V (1 kOhm output impedance) i-out ±6 V (1 kOhm output impedance) |
| power | 5 V output (max. 150 mA) |
| EIS Accuracy Contour Plot |
|---|
|
Software
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
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
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)
Downloads
Documentation (3)
| Name | Last updated | |
|---|---|---|
| PalmSens4 Brochure PalmSens4 Brochure | 01-02-23 | |
| PalmSens4 IR Compensation Module – Brochure This document describes the IR Compensation Module for PalmSens4. The module is available as an in-factory add-on module and provides positive feedback to compensate for the IR drop between the Reference electrode and the outside of the double layer of the electrochemical cell. | 09-09-22 | |
| PalmSens4 BiPot – Brochure For using an additional working electrode with your PalmSens4 to make it an BiPotentiostat. | 09-09-22 |
Software (1)
| 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. | 17-03-22 |
Application Note (4)
| Name | Last updated | |
|---|---|---|
| Potentiostatic and Galvanostatic EIS What is GEIS? When to use GEIS or PEIS? | 14-12-20 | |
| PalmSens4 Connecting via Bluetooth This document shows how to connect the PalmSens4 via Bluetooth to PSTrace (for Windows) or PStouch (for Android) | 08-04-20 | |
| PalmSens4 example calibration report PalmSens4 example calibration report | 08-04-20 | |
| Galvanic Isolation In this application note the galvanic isolation options are discussed for the different PalmSens instruments as well as the effect of galvanic isolation on your measurement. | 08-04-20 |