Gamry Instruments EIS Box, Operator'S Manual, Page: 39 / 52

Panel Indicators and Connectors
39
System Ground binding post
The front-panel System Ground black banana jack is intended for one use only. When the EIS Box is used with
cells isolated from earth ground, connecting the System Ground to earth ground may lower the noise measured
in the system. Note that the chassis of the EIS Box is isolated from the
System (floating) Ground . Safety
information concerning this is in Chapter 1.
A banana plug is the only way you can connect to the Chassis Ground jack. Use a wire to connect the banana
plug to earth ground.
A black banana-plug-to-banana-plug lead is provided with your EIS Box. You may find it useful when making
this earth-ground connection.
Rear Panel
AC Input
The AC Input receptacle accepts a three-terminal AC line cord. You must always use a line cord with a CEE 22
Standard V female connector on the instrument end of the cable. The EIS Box derives all its power from your
local AC (mains). The input current is less than 2.1 A.
The AC Input jack is rated for operation from 100 to 240 V AC, at frequencies from 47 to 63 Hz. It should
therefore be useable worldwide.