Installation & Getting Started
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1.2 Grounded/Floating Mode & Active Shielding
In
Grounded Mode
the
Working Electrode WE
is connected to ground. This provides the best
signal-to-noise ratio and therefore is recommended for most applications. In this mode you have to
take care that your sample is not grounded. Otherwise you can create a ground-loop which is adding
artefacts to your signal.
In
Floating Mode
no electrode is connected to ground. This allows to measure on grounded samples
without creating ground loops.
The electrode outlets and cables are shielded actively. That means, the phase-shifted signal is applied
to the shielding. This is done in order to minimize capacitive artefacts caused by core and shielding of
the cables. Therefore, always use the original cables shipped with the workstation and never connect
the shielding of an electrode jack to the ground. This deactivates the active shielding and may damage
the hardware.
Use the
TestBox
only in
Grounded Mode
. You will get erroneous data when measuring the TestBox
in Floating Mode.
