PAT-Dummy-Cell I

Basic cell for performing a functional test of your PAT-Tester

PAT-Dummy-Cell I

Basic cell for performing a functional test of your PAT-Tester

Product Overview

Product description

The PAT-Dummy-Cell I is used to perform a quick functional test of your PAT-Tester right out of the box, or in case the tester does not work as expected with your electrochemical test cell. The PAT-Dummy-Cell I consists of simple RC circuits:

The dummy cell can be considered a simplistic equivalent circuit of the three electrodes of an electrochemical cell. The R2|C1 parallel connection represents the electrode/electrolyte interface of electrode 1. R3|C2 is the same for electrode 2. The bulk (ohmic) resistance contributions between 1 and 2 are represented by R1 and R4. If the current passes between 1 and 2, the voltage drop across R5 is zero. Then the electrode R can be considered the voltage tap between electrodes 1 and 2. In contrast, if the current goes through electrode R, then voltage also drops across R5.

Specifications


PAT-Dummy-Cell I
Height		36 mm
Width		68 mm
Depth		68 mm

Electric component values
R1		10 Ohm
R2		287 Ohm
R3		1000 Ohm
R4		1 Ohm
R5		1000 Ohm
C1		1 µF
C2		10 µF

Downloads


PAT-Dummy-Cell I User Manual
Release	1.0
Type	PDF
Size	1.0 MB	Download


EL-Software test scripts for use with PAT-Dummy-Cell I		Download test scripts
Release	02-2024
Type	Zip
Size	1.0 MB

PAT-Dummy-Cell-I Overview

Specifications


PAT-Dummy-Cell I
Height		36 mm
Width		68 mm
Depth		68 mm

Electric component values
R1		10 Ohm
R2		287 Ohm
R3		1000 Ohm
R4		1 Ohm
R5		1000 Ohm
C1		1 µF
C2		10 µF

Downloads


PAT-Dummy-Cell I User Manual
Release	1.0
Type	PDF
Size	1.0 MB	Download


EL-Software test scripts for use with PAT-Dummy-Cell I		Download test scripts
Release	02-2024
Type	Zip
Size	1.0 MB

Test Cases

1. DC test with constant current

When applying a constant current, the dummy cell behaves, in steady state, as an ohmic voltage divider. For the test shown below we apply a current of 1 mA between 1 and 2, then between 1 and R, and finally between 2 and R. The three cc steps are separated by rest steps. Each step takes 200 milliseconds. The steady state is reached within a few ms, defined by the time constant of the respective RC element.

Script used: Dummy-I-CC-i12-i1R-i2R.elc

2. Impedance (GEIS) test

The RC elements of the dummy circuit are best characterized by impedance measurements. For the results shown below as Bode plots, we applied a sinusoidal alternating current with an amplitude of 1 mA, with frequencies between 100 kHz and 1 Hz. First, the alternating current was applied between 1 and 2, then between 1 and R and finally between 2 and R.