National Instruments PXI User Manual

NI 5114 Calibration Procedure | © National Instruments | 25
4. Configure the horizontal properties using the niScope Configure Horizontal Timing VI.
5. Commit all the parameter settings to hardware using the niScope Commit VI.
6. Connect the scope calibrator test head directly to the channel 0 input of the device.
Configure the calibrator to output an exact 11 MHz sine wave with 1 V
pk-pk
amplitude and
50 Ω load impedance.
7. Wait 2,500 ms for the impedance matching and frequency of the calibrator to settle.
8. Initiate a waveform acquisition using the niScope Initiate Acquisition VI.
LabVIEW VI C/C++ Function Call
Call niScope_Configure
HorizontalTiming
with the
following parameters:
enforceRealtime:
NISCOPE_VAL_TRUE
numRecords: 1
vi: The instrument handle from
niScope_init
minSampleRate:
250,000,000
refPosition: 50.0
minNumPts: 2,500,000
LabVIEW VI C/C++ Function Call
Call niScope_Commit with
the following parameter:
vi: The instrument handle from
niScope_init
LabVIEW VI C/C++ Function Call
Call niScope_Initiate
Acquisition
with the
following parameter:
vi: The instrument handle from
niScope_init

National Instruments PXI Specifications

General

Number of Slots	Varies by chassis (4, 8, 18)
Power Supply	Varies by chassis (typically AC or DC input)
Operating System Support	Windows, Linux
Typical Applications	Automated test, data acquisition
Compatibility	PXI
Cooling	Forced air
Operating Temperature	0 °C to 55 °C (Varies by module and chassis)
Relative Humidity	10% to 90% noncondensing (Varies by module and chassis)