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PXIe-4081
PXIe-4081, 7.5 Digit Resolution, 1.8 MS/s Sample Rate, PXI Digital Multimeter
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Expert Insights for the PXIe-4081
"The PXIe-4081 is a 7½-digit digital multimeter (DMM) that is perfect for high voltage and high precision applications. It offers a sample rate up to 1.8 MS/s and can measure AC/DC voltage, AC/DC current, 2- or 4-wire resistance, frequency/period measurements, and diode tests. It is a great addition to any testing system within a variety of industries."
- Chris B.
LabVIEW Trained
In-House Technician
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Expert Insights for the PXIe-4081
"The PXIe-4081 is a 7½-digit digital multimeter (DMM) that is perfect for high voltage and high precision applications. It offers a sample rate up to 1.8 MS/s and can measure AC/DC voltage, AC/DC current, 2- or 4-wire resistance, frequency/period measurements, and diode tests. It is a great addition to any testing system within a variety of industries."
- Chris B.
LabVIEW Trained
In-House Technician
National Instruments PXIe-4081 PXI Digital Multimeter
The National Instruments PXIe-4081 (Part Number: 783130-01, 154888C-02L) is a 7½-Digit, ±1,000 V, Onboard 1.8 MS/s Isolated Digitizer PXI Digital Multimeter. The NI PXIe-4081 is the industry’s most accurate 7½â€‘digit DMM, providing the measurement capabilities of a high-resolution 1,000 V DMM and an isolated digitizer—two common test instruments in one.
As a DMM, the PXIe-4081 delivers fast, precise AC/DC voltage, AC/DC current, 2-wire or 4-wire resistance, and frequency/period measurements, as well as diode testing. In the high-voltage, isolated digitizer mode, the NI PXIe-4081 can acquire waveforms at sample rates up to 1.8 MS/s at the full input range of ±3 A or ±1,000 V. Additionally, the PXIe-4081 does not support direct inductance and capacitance measurements. For the isolated digitizer, the voltage ranges from ±100 mV to ±1,000 V (DC or AC coupled), the current ranges from ±1 µA to ±3 A, and the sample rate range is 10 S/s to 1.8 MS/s.
The National Instruments PXIe-4081 Digital Multimeter has an input impedance of 10 MΩ ± 2% in parallel with 90 pF, and the maximum DC voltage component is 400 V. This DMM has a frequency range from 15 Hz to 500 kHz and a period measurement range from 2 µs to 66.67 ms. The PXIe-4081 does not have an ADC linearity specification of 0.5 ppm; instead, it provides ADC linearity of 0.5 ppm of reading + 0.5 ppm of range​
The PXIe-4081 has a warm-up time of 60 minutes and requires calibration every 2 years. It has input protection up to 1,000 VDC or Vpk and a current mode fuse rating of T 3.5 A 1000 V, time-lag Minimum interrupt rating: 10 kA (Siba 5019906.3,5). The NI device is compatible with NI-DMM driver software and can be programmed using an application development environment such as LabVIEW or LabWindows/CVI. The device is configurable via Measurement & Automation Explorer (MAX).
The PXIe-4081 weighs 12 oz. and measures 8.5 × 5.1 × 0.8 in. It has a recommended operating temperature range of 0 °C to 55 °C and a storage temperature range of -40 °C to 71 °C.
| Model | PXIe-4081 |
|---|---|
| Part Number | 783130-01, 154888C-02L |
| Manufacturer | National Instruments |
| Brand | Emerson |
| Type | PXI Digital Multimeter |
| Digits of Resolution | 7.5 |
| Maximum Sample Rate | 1.8 MS/s |
| Frequency Range | 15 Hz to 500 kHz |
| Dimensions | 8.5 × 5.1 × 0.8 in. |
| Weight | 12 oz. |
| PXIe-4081 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Request a Quote Today |
Associated part numbers for PXIe-4081:
National Instruments PXIe-4081 Frequently Asked Questions
Question: What is the basic DC voltage accuracy for the PXIe-4081?
Answer: The basic DC voltage accuracy depends on the voltage range. For the 10 V range, the 2-year accuracy is 12 ppm of reading + 0.5 ppm of range. For the 1000 V range, the 2-year accuracy is 25 ppm of reading + 0.5 ppm of range.
Question: What is the DC voltage range for the PXI Digital Multimeter?
Answer: The DC voltage range for the NI PXIe-4081 is -1000 V to 1000 V.
Question: Can the PXIe-4081 perform L&C measurements?
Answer: No, the multimeter cannot perform L&C measurements.
Question: Which functions are available on the isolated digitizer on the PXIe-4081?
Answer: The isolated digitizer has voltage and current functions.
PXIe-4081 PDF Manuals
MAINTAIN-FORCED-AIR-COOLING-NOTE-TO-USERS.PDF
NI-PXIE-4080-4081-4082-GETTING-STARTED-GUIDE.PDF
PXIE-4080-4081-4082-LETTER-OF-VOLATILITY.PDF
PXIE-4081-CALIBRATION-PROCEDURE.PDF
PXIE-4081_DIMENSIONAL_DRAWING.PDF
PXIE-4081_SPECIFICATIONS_UPDATED_2025.PDF
PRECISION_VOLTAGE_REFERENCE_TESTING_USING_THE_NI_PXIE-4081_DMM.PDF
Driver Downloads for PXIe-4081
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