The National Instruments 780011-01 PXI Digital Multimeter is an integral component of the PXI-4065 product family, designed to deliver precise measurements in a variety of test and measurement applications. This 6½-digit multimeter provides accurate readings for AC/DC voltage, AC/DC current, and resistance using 2 or 4 wire configurations, including features for diode testing. The instrument is optimized for low-cost performance, making it suitable for a diverse range of environments from original equipment manufacturers (OEMs) to educational laboratories.

The multimeter boasts impressive speed characteristics, executing range or function changes at a rate of ten per second, with DC auto-ranging timings of just 200 milliseconds and resistance measurements taking up to 250 milliseconds. It supports a maximum trigger rate of 2.5 kHz and offers a remarkably low trigger latency of less than 1 microsecond. In terms of DC functions, the device allows for a 105% overrange capacity across most ranges, with the 300 V and 3 A ranges as exceptions. For effective resistance measurement, it limits the maximum 4-wire lead resistance to either 10% of the selected range or 1 kΩ, ensuring reliable readings. At a reference temperature of 23°C, the DC voltage input bias current remains below 40 pA, underscoring its high accuracy amidst varied conditions.

For AC measurements, the 780011-01 matches the speed performance of its DC counterpart, featuring rapid range changes and a trigger delay of less than 1 microsecond. Its AC functions exhibit impressive specifications, including a common-mode rejection ratio (CMRR) exceeding 150 dB, along with a maximum DC voltage component of 250 V. The instrument is equipped with robust protection for current ratings, featuring a 4.0 Amp current mode fuse and sustaining a maximum continuous current of 3 A from HI SENSE to LO. The calibration interval for this multimeter is set at one year, ensuring consistent performance over time.