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NI PXI-4070 Calibration Procedure
48
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5.
Refer to Table 9 for the appropriate parameter values as you complete
the following steps:
a.
Output 0 V on the calibrator.
b.
Call
niDMM_CalAdjustOffset
with
Mode
set to
NIDMM_VAL_AC_VOLTS
and the remaining parameters as shown
in Table 9 for the current iteration.
c.
Call
niDMM_CalAdjustOffset
again, changing
Mode
to
NIDMM_VAL_AC_VOLTS_DCCOUPLED
.
6.
Repeat step 5 for each of the remaining iterations shown in Table 9.
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
Table 9.
niDMM_CalAdjustOffset Parameters
Iteration
niDMM_CalAdjustOffset Parameters
Mode
Range (V)
Input Resistance (
Ω
)
1
NIDMM_VAL_AC_VOLTS
0.05
NIDMM_VAL_1_MEGAOHM
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
0.05
NIDMM_VAL_1_MEGAOHM
2
NIDMM_VAL_AC_VOLTS
0.5
NIDMM_VAL_1_MEGAOHM
NIDMM_VAL_AC_VOLTS
_DCCOUPLED
0.5
NIDMM_VAL_1_MEGAOHM
Table 8.
niDMM_CalAdjustGain Parameters (Continued)
Iteration
Calibrator Output
niDMM_CalAdjustGain Parameters
Amplitude
Frequency
Mode
Range
(V)
Input Resistance
Expected
Value