NI 4065

The NI 4065 is a 6½ digit DMM for the PXI, PCI, PCI Express, and USB buses. For more detailed information about the NI 4065 specifications, refer to Related Documentation for the NI 4065 Specifications document.

Front Panel Connections

The PXI, PCI, and PCI Express front panels have four shrouded banana plug connectors and one 9-pin mini–circular DIN connector. The NI USB-4065 has five shrouded banana plug connectors on the front panel and one 9-pin mini–circular DIN connector on the back panel. The banana plug connectors are high-voltage, safety signal connectors. The 9-pin DIN connector labeled AUX I/O is a digital signal connector, which carries triggers and SCXI communication signals. For an illustration of the front panel connectors and wiring instructions, refer to NI 4065 Front Panel Connections.

Note   The additional connector on the NI USB-4065 allows you to measure voltage while current is still flowing through the current measurement leads. For more information on the added flexibility of this additional connector, reference KnowledgeBase entry 4GJD4MMP. Refer to ni.com/support to access the KnowledgeBase.

Operation

The following table lists the functions and ranges supported by the NI 4065:

Function Ranges
DC Voltage 100 mV, 1 V, 10 V, 100 V, 300 V
AC Voltage 200 mV, 2 V, 20 V, 300 V
DC Current1 10 mA, 100 mA, 1 A, 3 A
AC Current1 10 mA, 100 mA, 500 mA, 3A
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
Diode 10 V at 100 µA, 3.5 V at 1 mA
1To measure current outside of the normal range on the NI 4065, you must use a current shunt module (CSM). Refer to Measuring Current for more information.

The following table lists the available NI 4065 input resistance selections. NI calibrates the NI 4065 for full accuracy with all input resistances shown.

DCV ACV
Range Input Resistance Range Input Resistance
100 mV 10 MΩ (default) or 10 GΩ 200 mV 10 MΩ
1 V 10 MΩ (default) or 10 GΩ 2 V 10 MΩ
10 V 10 MΩ (default) or 10 GΩ 20 V 10 MΩ
100 V 10 MΩ (default) 300 V 10 MΩ
300 V 10 MΩ (default)

Additional Features

  • Auto Zero
  • Configuring Auto Range
  • Configuring Measurement Timing
  • Single Point Acquisitions
  • Generating Measurement Complete
  • Scanning Switch Modules

Replacing the Fuse

The NI 4065 is equipped with a Fast–Acting fuse designed to help protect your module and test system. For instructions on replacing the fuse, refer to Fuse Replacement.

Calibrating the NI 4065

Calibration maximizes the accuracy of a DMM. To ensure accuracy, you must perform calibration. NI recommends you calibrate annually.

Refer to the NI 4065 6½ Digit DMM Calibration Procedure at the NI Calibration Solutions Web site for information on externally calibrating the NI PXI/PCI/PCIe-4065. For information on calibrating the NI 4065 using Calibration Executive, refer to the NI Calibration Solutions Web site.