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National Instruments Corporation
49
NI PXI-4070 Calibration Procedure
7.
Refer to Table 10 for the appropriate calibrator outputs and parameter
values as you complete the following steps:
a.
On the calibrator, output the value listed under Calibrator Output
in Table 10 for the current iteration.
b.
Call
niDMM_CalAdjustACFilter
with
Mode
set to
NIDMM_VAL_AC_VOLTS
and the remaining parameters as shown
in Table 10 for the current iteration.
Note
The
Session
parameter remains the same for all instances of this function.
c.
Call
niDMM_CalAdjustACFilter
again, changing
Mode
to
NIDMM_VAL_AC_VOLTS_DCCOUPLED
.
8.
Repeat step 7 for each of the remaining iterations shown in Table 10.
3
NIDMM_VAL_AC_VOLTS
5
NIDMM_VAL_1_MEGAOHM
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
5
NIDMM_VAL_1_MEGAOHM
4
NIDMM_VAL_AC_VOLTS
50
NIDMM_VAL_1_MEGAOHM
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
50
NIDMM_VAL_1_MEGAOHM
5
NIDMM_VAL_AC_VOLTS
300
NIDMM_VAL_1_MEGAOHM
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
300
NIDMM_VAL_1_MEGAOHM
Table 10.
niDMM_CalAdjustACFilter Parameters
Iteration
Calibrator Output
niDMM_CalAdjustACFilter Parameters
Amplitude
Frequency
(kHz)
Mode
Range
(V)
Frequency
(Hz)
1
50 mV
1
NIDMM_VAL_AC_VOLTS
0.05
1e3
50 mV
1
NIDMM_VAL_AC_VOLTS_
DCCOUPLED
0.05
1e3
2
50 mV
5
NIDMM_VAL_AC_VOLTS
0.05
5e3
50 mV
5
NIDMM_VAL_AC_VOLTS_
DCCOUPLED
0.05
5e3
Table 9.
niDMM_CalAdjustOffset Parameters
Iteration
niDMM_CalAdjustOffset Parameters
Mode
Range (V)
Input Resistance (
Ω
)