NI 4070/4072 Calibration Procedure 10 ni.com
Figure 1. Cable Connections for Voltage and 2-Wire Resistance
23. Wait two minutes for the thermal EMF to stabilize.
24. Generate 0 V on the calibrator.
25. Call
niDMM_ConfigureMeasurement with the following
parameters:
• Function =
NIDMM_VAL_DC_VOLTS
• Range = 0.1
• Resolution = 100e–9
26. Set the input resistance of the NI 4070/4072 to >10 GΩ by calling
niDMM_SetAttributeViReal64 with the following parameters:
• Attribute_ID =
NIDMM_ATTR_INPUT_RESISTANCE
• Attribute_Value = NIDMM_VAL_GREATER_THAN_10_GIGAOHM
1 NI 4070/4072 2 Fluke 5700A/5720A Calibrator 3 Fluke 5440 Cable
Table 1. Fluke 5440 Cable Connections
Banana Plug Connector
(NI 4070/4072)
Banana Plug Color
(Fluke 5440 Cable)
Binding Post Label
(Fluke 5700A/5720A Calibrator)
HI Red OUTPUT HI
LO Black OUTPUT LO
(No connection) Blue V GUARD
HI
LO
300V
MAX
HI
LO
AUX
I/O
1A, 250V
MAX
300V
MAX
5V
MAX
AMPS
INPUT
SENSE
W 4W
6½-Digit FlexDMM
CAT II
V
W
HI
LO
HI
LO
HI
SENSE
VΩ
OUTPUT
VΩA
AUX
CURRENT
GUARD GROUND
1
2
3