Table 1. Required Equipment for Calibration
Required
Equipment
Recommended Model(s)
Where Used
Minimum
Specifications
Digital multimeter
(DMM)
Keysight 3458A
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All parameters
Voltage: <±26 ppm
accuracy and <1 µV
resolution
Current: <±100 ppm
accuracy and <5 pA
resolution
Two 50 Ω
resistors
Vishay
PTF5650R000BZEK
Voltage remote
sense
0.1% tolerance, 1/8 W
Two 10 Ω
resistors
Vishay
CMF5510R000BEEK
Current remote
sense
0.1% tolerance, 1/4 W
Two 100 Ω
resistors
Vishay
PTF65100R00BYEK
Current remote
sense
0.1% tolerance, 1/4 W
Two 1 kΩ
resistors
Vishay
PTF651K0000BYEK
Voltage and
current remote
sense
0.1% tolerance, 1/4 W
Two 10 kΩ
resistors
Vishay
PTF6510K000BYEK
Current remote
sense
0.1% tolerance, 1/4 W
Two 100 kΩ
resistors
Vishay
PTF65100K00BYEK
Current remote
sense
0.1% tolerance, 1/4 W
Test Conditions
The following setup and environmental conditions are required to ensure the NI 4141 meets
published specifications:
•
Keep cabling as short as possible. Long cables act as antennas, picking up extra noise that
can affect measurements.
•
Verify that all connections to the NI 4141, including front panel connections and screws,
are secure.
•
Ensure that the PXI chassis fan speed is set to HIGH, that the fan filters, if present, are
clean, and that the empty slots contain filler panels. For more information about cooling,
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To take measurements in the 10 µA range with the Keysight 3458A, you must send your device to
the Keysight Primary Standards Lab for a special calibration to verify the 10 µA, 1 µA, and
100 nA ranges.
NI PXIe-4141 Calibration Procedure
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© National Instruments Corporation
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