Passive Cell Model; Cell Model Description - NPI ELC-03XS Operating Instructions And System Description

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6. Passive Cell Model

The cell model is designed to be used to check the function of the instrument either
1. just after unpacking to see whether the instrument has been damaged during transport or
2. to train personnel in using the instrument or
3. in case of trouble to check which part of the setup does not work correctly e.g. to find out
whether the amplifier is broken or if something is wrong with the electrodes or holders
etc.
Figure 4: ELC-MOD passive cell model
The passive cell model consists only of passive elements, i.e. resistors that simulate the
resistance of the cell membrane and the electrodes, and capacitances that simulate the
capacitance of the cell membrane. A switch allows simulation of two different cell types: a
cell with 50 M and 22 pF (CELL 1, represents an astrocyte like cell) or a cell with 200 M
membrane resistance and 100 pF membrane capacitance (CELL 2, represents an neuron like
cell), or. Electrode immersed into the bath or SEAL formation can be mimicked as well. The
headstage of the amplifier can be connected to one of two different types of electrodes (see
below).
6.1.

Cell Model Description

Figure 5: ELC-MOD passive cell model
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version 2.2
ELC-03XS User Manual
page 23