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NI 5421/5441 Calibration Procedure
34
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8.
Call
niFgen_SetAttributeViReal64
to set the post-amplifier
attenuation (niFgen property node:
Calibration»Post-Amplifier
Attenuation
) using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_POST_AMPLIFIER_ATTENUATION
•
value
:
0
9.
Call
niFgen_SetAttributeViReal64
to set the output impedance
(niFgen property node:
Basic Operation»Output Impedance
) using
the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_OUTPUT_IMPEDANCE
•
value
:
50
10. Call
niFgen_SetAttributeViBoolean
to enable the analog output
(niFgen property node:
Basic Operation»Output Enabled
) using
the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_OUTPUT_ENABLED
•
value
:
VI_TRUE
11. Call
niFgen_Commit
(niFgen Commit VI) to commit the attribute
values to the device using the following parameter:
•
vi
: The session handle returned from
niFgen_InitExtCal
Adjusting the Main Path Pre-Amplifier Offset
1.
Call
niFgen_SetAttributeViInt32
to set the analog path value
(niFgen property node:
Output Attributes»Analog Path
) using
the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_ANALOG_PATH
•
value
:
NIFGEN_VAL_FIXED_LOW_GAIN_ANALOG_PATH