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36 | ni.com | NI 5114 Calibration Procedure
11. If the device does not time out, the device has passed this portion of the verification. If the
device does time out, you must call the niScope Abort VI to end the acquisition. If your
device fails and you end the acquisition, you must re-run the verification.
12. To verify the trigger sensitivity on channel 1, repeat steps 2 through 11 using the values in
Table 10, iterations 3 and 4. Make the following changes:
•
Change channelList to
"1"
in steps 2, 3, and 10.
• Connect the calibrator test head to channel 1 in step 7.
13. To verify the trigger sensitivity on the external trigger channel, repeat steps 2 through 11
using the values in Table 10, iterations 5 and 6. Make the following changes:
•
Change channelList to
"0"
in steps 2, 3, and 10.
• Connect the calibrator test head to the external trigger channel (TRIG) in step 7.
14. End the session using the niScope Close VI.
LabVIEW VI C/C++ Function Call
Call
niScope_Abort
with the
following parameter:
vi : The instrument handle from
niScope_init
LabVIEW VI C/C++ Function Call
Call
niScope_close
with the
following parameter:
vi : The instrument handle from
niScope_init
Table 10. NI 5114 Trigger Sensitivity Inputs
Iteration Trigger Source Level Slope
Calibrator
Signal
1 0 1 mV
NISCOPE_VAL_POSITIVE
9.7 mV
pk-pk
100 MHz sine
wave with 50
Ω
load impedance
2 0 -1 mV
NISCOPE_VAL_NEGATIVE
3 1 1 mV
NISCOPE_VAL_POSITIVE
9.7 mV
pk-pk
100 MHz sine
wave with 50
Ω
load impedance
4 1 -1 mV
NISCOPE_VAL_NEGATIVE
5
VAL_EXTERNAL
50 mV
NISCOPE_VAL_POSITIVE
485 mV
pk-pk
125 MHz sine
wave with 1 M
Ω
load impedance
6
VAL_EXTERNAL
-50 mV
NISCOPE_VAL_NEGATIVE