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Hardware

Software

Controlled potential mode or potentiostat

- dc-potential range	± 2 V
- compliance voltage	± 8 V
- dc-potential resolution	1 mV
- potential accuracy	≤ 0.2 % offset and 0.2 %
- ac-potential amplitude	1 mV to 250 mV
- ac-potential resolution	0.25 mV
- current ranges	1 nA to 10 mA (8 ranges)
- maximum current	± 10 mA
- current resolution	0.1 % of current range 1 pA on lowest current range
- accuracy	≤ 0.2 % of current range at 100 nA to 1 mA

Controlled current mode or galvanostat

- current ranges	1 μA to 1 mA
- dc-current range	-2 to + 2 times selected current range
- dc-current resolution	0.1 % of selected current range
- current accuracy	≤ 0.2 % offset and 0.4 %
- maximum output voltage	± 8 V
General:
- electrometer amplifier input	> 100 Gohm // 4 pF
- rise time	< 50 μs

Dimensions 155 mm x 85 mm x 35 mm

Weight 0.45 kg

Power 2 AA cells NiMH for more than 8 hours operation.
battery charger included (6 V- 1500 mA)

Multiplexer

- number of channels	8
- on resistance	80 ohm
- leakage current:	10 pA typical
- inputs	working, reference and counter electrode
- outputs	8 x working, 8 x reference and 8 x counter electrode and reference and counter electrode
- cable	high density (centronics) cable with 36 leads

The multiplexer can be used in different sensor configurations:

Sensorarrays with up to eight working electrodes sharing one counter and one reference or one combined counter/reference. All working electrodes either have the same potential or all not-selected working electrodes are at open potential.
Sensorarrays with up to eight working, eight reference and eight counter electrodes. All not-selected sensors are at open circuit.
Sensorarrays with up to eight working and eight combined reference/counter electrodes. Either all sensors have the same potential or not-selected sensors are at open circuit.

More information...

Bipotentiostat module

PalmSens can be expanded with bipotentiostat module. This module is applied when the sensor or electrochemical cell has two working electrodes.
The bipotentiostat module is supported by the PSLite software. The methods amperometric detection, linear sweep and cyclic voltammetry can be applied to measure the current of WE1 and WE2 simultaneously.

- dc-potential range	± 2 V
- dc-potential resolution	1 mV
- potential accuray	<= 0.4 % offset and 0.2 %
- current ranges	1 nA to 10 mA (8 ranges)
- maximum current	± 10 mA
- current resolution	0.1 % of current range 1 pA on lowest current range
- accuracy	<= 0.2 % offset and 0.2 % at 100 nA to 1 mA

Automatic stirrer controlled by PalmSens

PalmSens can be used with a modified automatic stirrer (from IKA) for stripping voltammetry. It is automatically switched on and off by PalmSens.