Model 6220/6221 User’s Manual
Output Connections
2-5
Return to
Output configurations
There are four configurations that can be used for current source output:
•
Triax inner shield is connected to
Output Low
, which is connected to
Earth
Ground
(see
A).
•
Triax inner shield is connected to
Cable Guard
and
Output Low
is con-
nected to
Earth Ground
A).
•
Triax inner shield is connected to
Output Low
, which is disconnected from
Earth Ground (
Floating
B). This is the default setting.
•
Triax inner shield is connected to
Cable Guard
.
Output Low
is accessed
at the LO banana jack and is disconnected from Earth Ground (
Floating
)
(see
Using the Model 622x with the triax inner shield connected to Output Low makes it
compatible with the Keithley Model 220 current source.
WARNING
To prevent electric shock and/or damage to the Model 622x, DO
NOT exceed the maximum (Max) voltage levels indicated in
.
CAUTION
To prevent damage to internal fuses of the Model 622x, current
from output low to earth ground must be limited to 1A. Use a
fuse or other current limiting device in the external test circuit.
One internal fuse is located between the Triax Output Low and
banana jack LO. The other internal fuse is located between
Triax Output Low and earth ground.
Figure 2-4
Output configurations – triax inner shield connected to Output Low
1) Boot color for alligator
clip if using supplied
triax cable.
2) Frequency Variable
Resistor (FVR). See
Figure 2-1.
A) Triax Output Low setting: Earth Ground
B) Triax Output Low setting: Floating
OUTPUT
FVR
Chassis
Earth
Ground
105V
Max
250V
Max
Output High
(red)
Output Low
(black)
Earth Ground
(green)
622x
OUTPUT
FVR
Chassis
Earth
Ground
105V
Max
Output High
(red)
Output Low
(black)
Earth Ground
(green)
622x
1
1
1
1
1
1
2
2
Summary of Contents for 6220 DC
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Page 36: ...1 20 Getting Started Model 6220 6221 User s Manual Return to Section 1 topics...
Page 131: ...6 10 Averaging Filter Math and Buffer Model 6220 6221 User s Manual Return to Section 6 topics...
Page 148: ...A Specifications...
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