NI 4070/4072 Calibration Procedure 36 ni.com
12. Call GPCTR_Change_Parameter with the following parameters:
•deviceNumber = the device number of the NI 6608, assigned
by MAX
•gpctrNum = ND_COUNTER_0
•paramID = ND_COUNT_2
•paramValue = 10e6
13. Call GPCTR_Control with the following parameters:
•deviceNumber = the device number of the NI 6608, assigned
by MAX
•gpctrNum = ND_COUNTER_0
•action = ND_PROGRAM
14. Call niDMM_Read. Verify that this measurement falls between the
limits listed in Table21.
15. Call GPCTR_Control with the following parameters:
•deviceNumber = the device number of the NI 6608, assigned
by MAX
•gpctrNum = ND_COUNTER_0
•action = ND_RESET
16. Repeat steps 10 through 15 with the following modification: in
steps 11 and 12, change paramValue to 500 when you call the
function GPCTR_Change_Parameter.
17. Repeat steps 10 through 15 with the following modification: in
steps 11 and 12, change paramValue to 20 when you call the function
GPCTR_Change_Parameter.
You have completed verifying the frequency of the NI4070/4072. Select
one of the following options:
• If you are calibrating an NI 4072 and want to continue verifying other
modes, go to the Verifying Capacitance and Inductance (NI 4072
Only) section.
• If you do not want to verify other modes and you are performing a
post-adjustment verification, go to the Completing the Adjustment
Procedures section.
• If you do not want to verify any additional modes and you are
performing a pre-adjustment verification, call niDMM_close to close
the session.