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PalmSens4 – New!!!

ps4c

PalmSens4 Datasheetpdf_60x45

 

The PalmSens4 is a USB and battery powered Potentiostat, Galvanostat, and optional 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 PalmSens4 is equipped with an internal storage of 4 GB, meaning your measurements are automatically saved on-board as a backup. This instrument is a complete laboratory instrument but its compact and rugged design makes it also ideal for field work.


Available Configurations

The PalmSens4 is available with ±5V or ±10V DC-potential ranges and with different maximum frequencies for FRA / EIS. The following table shows the applicable product codes:

 DC-Potential Range of +/-5V
[05]
DC-Potential Range of +/-10V
[10]
NO EIS [F0]see PalmSens3 PS4.F0.10
EIS up to 100 kHz [F1]PS4.F1.05 PS4.F1.10
EIS up to 1 MHz [F2]PS4.F2.05 PS4.F2.10

included-as-standard


Supported Techniques

Voltammetric techniques:

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

Technique as a function of time:

Impedance Spectroscopy / EIS

Scans can be made at a fixed frequency or with a frequency scan.


Measurement Specifications

General pretreatment:

Apply conditioning, deposition or initial potential for: 0 – 1600 s

 

General voltammetric parameters:

PS4 ModelPS4.F1.05
PS4.F2.05
PS4.F0.10
PS4.F1.10
PS4.F2.10
Potential range:-5 V to +5 V-10 V to +10 V
Step potential:0.075 mV to 250 mV0.075 mV to 250 mV
Pulse potential:0.075 mV to 250 mV0.075 mV to 250 mV

 

Limits of some technique specific parameters for PalmSens4:

TechniqueParameterLimit
Normal Pulse and Differential Pulse Voltammetry:Scan rate:
Pulse time:
0.1 mV/s (75 µV step) to
100 mV/s (5 mV step)10 ms to 300 ms
Square Wave Voltammetry1 and AC Voltammetry:Frequency:1 Hz to 2000 Hz 1
Linear Sweep and Cyclic Voltammetry:Scan rate:0.01 mV/s (75 µV step) to
500 V/s (10 mV step)
ChronoAmperometry:Interval time:
Max. run time:
0.25 ms to 300 s
1000000 s (> 10 days at 16 s interval)
Pulsed Amperometric Detection:Interval time:
Pulse time:
Max. run time:
50 ms to 300 s
1 ms to 1 s
640000 s (> 7 days at 10 s interval)
Multiple Pulse Amperometric Detection:Pulse times:
Run time:
E levels:
100 ms to 2 s
10 s to 100000 s
3
Fast Amperometry:Interval time:
Max. run time:
Max. points:
0.02 ms to 1 s
30 s
65000 (4000 for interval time < 0.2 ms)
ChronoPotentiometry and Open Circuit Potentiometry:Interval time:
Max. run time:
0.25 ms to 300 s
1000000 s (> 10 days at 300 s interval)
Multistep Amperometry
Multistep Potentiometry and
Mixed Mode:
Interval time:
Level switching overhead time:
Number of levels:
Number of cycles:
Max. run time:
0.25 ms to 300 s
±80 ms
1 to 255
1 to 20000
> 1 year

 

 Note: some limits of parameters are set for practical reasons and can be modified on request.

1 PSTrace provides the option to measure forward and reverse currents separately.

 

Extensions

PalmSens can be extended with the bipotentiostat module as well as a multiplexer with 8 or 16 channels. The opto-isolated cable, as well as the Bluetooth option, allows PalmSens to be used floating with respect to ground.


Specification

General

DC Potential Range± 10 V (or ± 5 V)
Compliance Voltage± 10 V
Maximum Current± 30 mA (typical)
Max. Acquisition Rate150,000 data points/s

 

Potentiostat (controlled potential mode)

Applied DC-potential resolution75 µV
Applied potential accuracy0.1% ± 1 mV offset
Current ranges≤100 pA to 10 mA (9 ranges)
Current accuracy≤ 0.1 % (at Full Scale Range)
Measured current resolution0.006 % of current range (5 fA on 100 pA range)

 

Galvanostat (controlled current mode)

Current ranges1 nA to 10 mA (8 ranges)
Applied DC-current range± 6 times applied current range
Applied DC-current resolution0.005 % of applied current range
Measured dc-potential accuracy75 µV at ± 10 V
7.5 µV at ± 1 V
0.75 µV at ± 0.1 V

 

FRA/EIS (impedance measurement)

Frequency range10 µHz to 1 MHz (or 10 µHz to 100 kHz)
AC-amplitude1 mV to 0.25 V rms, or 0.6 V p-p

 

Electrometer

Electrometer amplifier input> 1 TΩ // 10 pF
Bandwith1 MHz

 

Other

Housingaluminium with rubber sleeve: 15.7 x 9.7 x 3.5 cm3
Weight500 g
Temperature range0 ºC to + 50 ºC
Power supplyUSB or internal LiPo battery
CommunicationUSB and Bluetooth
Battery time> 16 hours idle time
> 4 hours with cell on at max. current
Extendable by means of power bank
Internal storage space4 GB
or +/- 400000 measurements incl. method info (assuming 200 data points per measurement)

 

Auxiliary port (D-Sub 15)

Analog input± 10 V, 18 bit
Analog output0-10 V, 12 bit (1 kOhm output impedance)
4 Digital outputs0-3.3 V
1 Digital input0-3.3 V (5 V tolerant)
I-out and E-outraw output of current and potential
E-out ± 10 V (1 kOhm output impedance)
I-out ± 6 V (1 kOhm output impedance)
Power5 V output (max. 150 mA)

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


Extensions

There are several extensions for the PalmSens4. The main extensions include:

 

 


Software

PalmSens4 is shipped with the new PSTrace 5.0 software.
New in PSTrace 5.0:

  • Equivalent Circuit Fitting and Simulation for EIS
  • Support for PalmSens4; view and copy data on its internal 4GB storage
  • New technique: Mixed Mode for combining potentiometry and amperometry, potential sweeps and measuring at open circuit
  • Improved UI
  • New “.pssession” file format introduced for always saving all available measurements, method information and meta data to a single file.