Gamry VistaShield Stir/Purge, Operator'S Manual

Page: 32 / 40

Chapter 5: Panel Indicators and Controls--Rear Panel
5 - 6
Stir/Purge Schematic
Chassis ground
There is no independent grounding (earthing) for the Stir/Purge device. It is in electrical contact with the
VistaShield Faraday cage. Grounding of the Faraday cage also grounds the Stir/Purge chassis. The User I/O and
USB connectors are both isolated so that the Stir/Purge is not in ground contact when either is connected.
Proper use of the VistaShield Stir/Purge and Faraday Cage has the ground post inside the Faraday cage
connected to the ground reference of the potentiostat. If this ground reference is also an earth ground then the
system will be earth-grounded. If it is a float ground then the system will be floating. Under either setup the
Faraday cage will shield out external electronic noise.
Warning! Excess pressure can cause damage to the internal
workings of the VistaShield Stir/Purge, and can, in extreme cases, pose an explosive risk to
the user. The VistaShield Stir/Purge is not intended for use with explosive, hazardous, or
toxic substances which can pose a risk of explosion or poisoning to the user.