Multichannel Systems MEA-IT Manual - Manual (Page 12)

Impedance Testing Device MEA-IT Manual
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3.3 Compatible Microelectrode Arrays
Currently, the MEA-IT is available for MEAs with 60 electrodes only. Contacting units for different
layouts are under development. Please contact Multi Channel Systems MCS GmbH for detailed
information.
Each MEA is classified by its type and its individual serial number, which is engraved on the back
side of the MEA.
The name of the specific MEA defines its parameters: 100/10iR-Ti, for example.
The first number is the distance between the electrodes in the layout grid. The number after the
slash is the diameter of the recording electrodes. Ti (titanium nitride) and ITO (Indium tin oxide)
are materials for electrodes and / or tracks and / or contact pads. The character "iR" indicates
whether the MEA has an internal reference or not.
Positioning the MEA
Important: MEAs are not symmetrical! That is, why the writing (for example NMI, LEITER, MEA
type) on the MEA chip should be on the right side viewed from the front of the MEA-IT device.
MEAs with one big internal reference electrode should be placed with reference electrode to
the left side in the MEA-IT device. Otherwise, the MEA layout will not match with the pin layout
of the MEA-IT device.
When placing a special MEA into the amplifier, for example HighDense MEA, 4Q1000 MEA
or HexaMEA, please make sure that the orientation of the MEA is correct, respectively.