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NI 5122/5124 Calibration Procedure
20
ni.com
13. Move the calibrator test head to the digitizer input channel 1 and repeat
steps 1 through 12 for every configuration in Table 3, replacing
"0"
with
"1"
for the
channelList
parameter.
You have finished verifying the vertical gain accuracy of the NI 5122/5124.
Programmable Vertical Offset Accuracy
Complete the following steps to verify the programmable vertical offset
accuracy for each digitizer channel.
1.
Call
niScope_ConfigureChanCharacteristics
(niScope
Configure Chan Characteristics VI) with the following parameters:
•
channelList
:
"0"
•
inputImpedance
:
NISCOPE_VAL_50_OHM
•
maxInputFrequency
:
100,000,000
(for NI 5122),
150,000
(for NI 5124)
2.
Call
niScope_ConfigureVertical
(niScope Configure
Vertical VI) with the following parameters:
•
channelList
:
"0"
•
range
:
2.0
•
offset
:
0.75
•
coupling
:
NISCOPE_VAL_DC
•
probeAttenuation
:
1.0
•
enabled
:
NISCOPE_VAL_TRUE
Table 7.
NI 5124 Vertical Gain Stimuli, Calibration Test Limits,
and Published Specifications
Range
(V)
Positive
Input (V)
Negative
Input (V)
Calibration
Test Limits
Published
Specifications
0.2
0.09
–0.09
±0.3975%
±0.65%
0.4
0.18
–0.18
±0.3975%
±0.65%
1
0.45
–0.45
±0.3975%
±0.65%
2
0.9
–0.9
±0.3975%
±0.65%
4
1.8
–1.8
±0.3975%
±0.65%
10
4.5
–4.5
±0.3975%
±0.65%
20
9
–9
±0.3975%
±0.65%