![background image](http://html1.mh-extra.com/html/national-instruments/flexdmm-pxi-4070/flexdmm-pxi-4070_calibration-procedure_3422604057.webp)
©
National Instruments Corporation
57
NI 4070/4072 Calibration Procedure
7.
Call
niDMM_CalAdjustLC
with
Type
set to
NIDMM_EXTCAL_LC_25OHM
.
8.
Remove the resistor, and plug in across the
HI
and
LO
banana plug
connectors of the NI 4072 the next adjustment resistor, according to
Table 16.
9.
Repeat steps 6 through 8 using the parameters shown in Table 16 for
niDMM_CalAdjustLC
.
You have completed adjusting the capacitance and inductance modes of the
NI 4072. Select one of the following options:
•
To verify that the NI 4072 is now operating within its specifications,
go to the
section and complete the appropriate
procedures.
•
To finish the calibration and close the session, go to the
section.
Completing the Adjustment Procedures
To complete the adjustment procedure for the NI 4070/4072 and close the
session, call
niDMM_CloseExtCal
with the following parameter:
•
Action
=
NIDMM_EXTCAL_ACTION_SAVE
if the results of the
calibration were satisfactory and you want to save the new calibration
coefficients to the EEPROM.
Otherwise,
•
Action
=
NIDMM_EXTCAL_ACTION_ABORT
if the results of the
calibration were unsatisfactory and you want to restore the original
calibration coefficients to the EEPROM.
Table 16.
niDMM_CalAdjustLC Parameters
Value of Resistor
niDMM_CalAdjustLC Parameters
Type
125
Ω
NIDMM_EXTCAL_LC_1KOHM
5 k
Ω
NIDMM_EXTCAL_LC_5KOHM
100 k
Ω
NIDMM_EXTCAL_LC_100KOHM