2-6
Output Connections
Model 6220/6221 User’s Manual
Return to
Figure 2-5
Output configurations – triax inner shield connected to Cable Guard
Triax inner shield
The inner shield of the triax connector can be connected to Output Low (to be
compatible with the Keithley 220 Current Source) or to Cable Guard. Output Low
is the default connection.
The current source OUTPUT must be OFF in order to change the inner shield set-
ting. Perform the following steps to check or change the inner shield connection:
1.
If the current source output is on, press the
OUTPUT
key to turn it
OFF
(“OFF” message is displayed).
2.
On the Model 622x, press the
TRIAX
key to display the
CONFIGURE
TRIAX
menu.
3.
Using the cursor controls, place the blinking cursor on
INNER SHIELD
and
press the
ENTER
key to display the
TRIAX INNER SHIELD
options.
4.
Place the cursor on
OUTPUT LOW (220 STYLE)
or
GUARD
and press the
ENTER
key.
5.
Press the
EXIT
key to return to the normal display state.
Remote programming (triax inner shield)
Changing the inner shield connection can only be done with the current source
OUTPUT OFF. Otherwise, error +403 Not allowed with output on will occur.
OUTPUT
FVR
Chassis
Earth
Ground
OUTPUT
FVR
250Vpk
Max
105Vpk
Max
LO
105Vpk
Max
105Vpk
Max
105Vpk
Max
Chassis
Earth
Ground
Output High
(red)
Cable Guard
(black)
62xx
62xx
Output High
(red)
Cable Guard
(black)
Output Low
Earth Ground
(green)
Output Low
(Earth Ground)
(green)
1
1
1
1
1
1
A) Triax Output Low setting: Earth Ground
B) Triax Output Low setting: Floating
1) Boot color for alligator
clip if using supplied
triax cable.
2) Frequency Variable
Resistor (FVR). See
Figure 2-1.
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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