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National Instruments Corporation
55
NI 5450 Calibration Procedure
Trigger Sensitivity
Complete the following steps to verify the trigger sensitivity of the
NI 5152/5153/5154. You must verify channel 0, channel 1, and the external
trigger channel using the corresponding iterations listed in Table 17. Use
the following inputs:
•
For channel 0, use the entries for iterations 1 and 2.
•
For channel 1, use the entries for iterations 3 and 4.
•
For the external trigger channel, use the entries for iterations 5 and 6.
1.
Open a session and obtain a session handle using the niScope
Initialize VI.
2.
Configure the input impedance and the maximum input frequency
using the niScope Configure Chan Characteristics VI.
LabVIEW VI
C/C++ Function Call
Call
niScope_init
with the following
parameters:
resourceName
: The device name
assigned by MAX
idQuery
:
VI_FALSE
resetDevice
:
VI_TRUE
LabVIEW VI
C/C++ Function Call
Call
niScope_ConfigureChan
Characteristics
with the following
parameters:
vi
: The instrument handle from
niScope_init
channelList
: The
channelList
value
from Table 17 for the current iteration.
inputImpedance
:
NISCOPE_VAL_50_OHM
maxInputFrequency
:
300,000,000
(NI 5152)
500,000,000
(NI 5153)
1,000,000,000
(NI 5154)