NI PXIe-4080

The NI PXIe-4080 (NI 4080) is a 6½ digit DMM for the PXI Express bus. For more information about the NI 4080 specifications, refer to the NI 4080 Specifications document.

Interconnects and Cables

The front of the NI PXIe-4080 module has four high-voltage, safety-agency approved banana plug connectors. For an illustration of the front panel connectors and wiring instructions, refer to the NI 4080 Front Panel Connections topic.

For use with the NI 4080, NI recommends selecting a cable with characteristics similar to the Belden 83317E. Refer to the Belden CDT Incorporated Web site at www.belden.com for information about this cable.

Tape-wrapped polytetrafluoroethylene (PTFE) insulation guarantees low leakage. Copper conductors with silver plating perform very well for low-voltage measurements because of their low thermal characteristics. Use a cable with at least 90% shielding effectiveness.

Operation

The NI 4080 can operate as a DMM and can acquire waveforms up to 1.8 MS/s. Refer to the NI PXIe-4080 Specifications document for a full list of functions and ranges supported by the NI 4080.

The following table lists the functions and ranges supported by the NI 4080 while in DMM mode:

DMM Function Ranges
DC Voltage 100 mV, 1 V, 10 V, 100 V, 300 V
AC Voltage 50 mV, 500 mV, 5 V, 50 V, 300 V
DC Current1 20 mA, 200 mA, 1 A
AC Current1 10 mA, 100 mA, 1 A
2-Wire Resistance 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ
4-Wire Resistance 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ
Diode 10 V at 1 µA / 10µA / 100µA; 4.5 V at 1 mA
Frequency/Period2 15 Hz - 500 kHz / 2 µs - 67 ms

1To measure current outside of the normal range on the NI 4080, you must use a current shunt module (CSM). Refer to Measuring Current for more information.

2Frequency/Period voltage ranges are the same as AC voltage ranges.

The following table lists the functions and ranges supported for waveform acquisitions:

Waveform Function Ranges Coupling
Voltage Waveform 100 mV, 1 V, 10 V, 100 V, 300 V AC or DC
Current Waveform1 20 mA, 200 mA, 1 A DC
1To measure current outside of the normal range on the NI 4080, you must use a current shunt module (CSM). Refer to Measuring Current for more information

The following table lists the available NI 4080 input resistance selections. NI calibrates the NI 4080 for full accuracy with all input resistances shown.

DCV ACV Voltage Waveform
Range Input Resistance Range Input Resistance Range Input Resistance
100 mV 10 MΩ (default) or 10 GΩ 50 mV 1 MΩ 100 mV 10 GΩ or 1 MΩ (default)
1 V 10 MΩ (default) or 10 GΩ 500 mV 1 MΩ 1 V 10 GΩ or 1 MΩ (default)
10 V 10 MΩ (default) or 10 GΩ 5 V 1 MΩ 10 V 10 GΩ or 1 MΩ (default)
100 V 10 MΩ (default) 50 V 1 MΩ 100 V 1 MΩ (default)
300 V 10 MΩ (default) 300 V 1 MΩ 300 V 1 MΩ (default)

Additional Features

  • Self-Calibration
  • Auto Zero
  • Configuring Auto Range
  • Offset Compensated Ohms
  • ADC Calibration
  • Input Resistance
  • Configuring Measurement Timing
  • Aperture Time
  • DC Noise Rejection
  • Waveform Acquisitions
  • Single Point Acquisitions
  • Generating Measurement Complete
  • Scanning Switch Modules

Replacing the Fuse

The NI 4080 is equipped with a 1 A 400 V Time-Lag fuse designed to help protect the DMM and your test system.

Calibrating the NI 4080

Calibration maximizes the accuracy of a DMM. To ensure accuracy, you must perform calibration. NI recommends that you externally calibrate every two years. Refer to the self-calibration or ADC calibration topics to internally calibrate the NI 4080. Refer to the NI 4080 6½-Digit DMM Calibration Procedure at the NI Calibration Solutions Web site for information on externally calibrating the NI PXIe-4080. For information on calibrating the NI 4080 using Calibration Executive, refer to the NI Calibration Solutions Web site. All NI measurement devices receive NIST-traceable calibration before shipping.