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National Instruments Corporation
47
NI PXI-4070 Calibration Procedure
appropriate binding posts on the calibrator, as described in Figure 3
and Table 1.
3.
Refer to Table 8 for the appropriate calibrator output and parameter
values as you complete the following steps:
a.
On the calibrator, output the value listed under Calibrator Output
in Table 8 for the current iteration.
b.
Call
niDMM_CalAdjustGain
with
Mode
set to
NIDMM_VAL_AC_VOLTS
. Set the remaining parameters as shown
in Table 8 for the current iteration.
c.
Call
niDMM_CalAdjustGain
again, changing
Mode
to
NIDMM_VAL_AC_VOLTS_DCCOUPLED
.
4.
Repeat step 3 for each of the remaining iterations listed in Table 8.
Table 8.
niDMM_CalAdjustGain Parameters
Iteration
Calibrator Output
niDMM_CalAdjustGain Parameters
Amplitude
Frequency
Mode
Range
(V)
Input Resistance
Expected
Value
1
50 mV
1 kHz
NIDMM_VAL_AC_VOLTS
0.05
NIDMM_VAL_
1_MEGAOHM
0.05
50 mV
1 kHz
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
0.05
NIDMM_VAL_
1_MEGAOHM
0.05
2
500 mV
1 kHz
NIDMM_VAL_AC_VOLTS
0.5
NIDMM_VAL_
1_MEGAOHM
0.5
500 mV
1 kHz
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
0.5
NIDMM_VAL_
1_MEGAOHM
0.5
3
5 V
1 kHz
NIDMM_VAL_AC_VOLTS
5
NIDMM_VAL_
1_MEGAOHM
5
5 V
1 kHz
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
5
NIDMM_VAL_
1_MEGAOHM
5
4
50 V
1 kHz
NIDMM_VAL_AC_VOLTS
50
NIDMM_VAL_
1_MEGAOHM
50
50 V
1 kHz
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
50
NIDMM_VAL_
1_MEGAOHM
50
5
100 V
1 kHz
NIDMM_VAL_AC_VOLTS
300
NIDMM_VAL_
1_MEGAOHM
100
100 V
1 kHz
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
300
NIDMM_VAL_
1_MEGAOHM
100