Model 6220/6221 Reference Manual
DC Current Source Operation
3-15
Return to
Example
– Select the 20mA source range, set the source to output 12mA,
and set compliance to 10V:
* To select a fixed source range, specify a parameter value that is the same as
the current output value to be sourced. For the parameter value “12e-3”, the
Model 622x selects the lowest range (20mA) that will accommodate a 12mA
output.
(3).
If desired, change the output response
For the Models 6220 and 6221, an analog output filter can be enabled to
slow down the output response. For the Model 6221, the output response
can be set to FAST or SLOW. See
“Output response,” on page 3-5
for
details on setting the output response.
Analog filter
– Use the
FILT
key to toggle the state (on or off) of the
low-pass filter. When this key is first pressed, the message “FILTER ON”
will be briefly displayed and the “FILT” annunciator turns on. To disable the
filter, again press the
FILT
key (“FILT” annunciator turns off).
Response speed setting (6221)
– The response speed can only be
changed while the output is off. Response speed is set as follows:
a.
Press the
CONFIG
key and then the
OUTPUT
key to display the output
response menu.
b.
Using the controls for
“Menu navigation,” on page 1-20
, select the
FAST
or
SLOW (6220 STYLE)
response speed.
For
remote programming
, the commands to set output response are
documented in
. The following example demonstrates proper
syntax.
Example – Enables the analog filter and, for the Model 6221, sets the
output response to fast:
CURRent:RANGe 12e-3
‘ Selects the 20mA range.*
CURRent 12e-3
‘ Sets the DC output to 12mA.
CURRent:COMPliance 10
‘ Sets voltage compliance to 10V.
NOTE
If the output was on when attempting to access the
output response menu, the output will turn off. Re-
peat Step above to access the output response
menu.
CURRent:FILTer ON
‘ Enables the analog filter.
OUTPut:RESPonse FAST
‘ Sets the output response of the 6221 to FAST.
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