HP 3458/HFL Multimeter

Superb transfer measurements

Extraordinary uncertainty

DC voltage stability

The long term accuracy of the HP 3458/HFL is a remarkable ±3 ppm per year - more accurate than many system dmms are after only a day.

Reduced-error resistance

The HP 3458/HFL offers superior performance in other functions as well. You can measure resistance from 10 mW to 1 GW with midrange accuracy of ±7.5 ppm.

The HP 3458/HFL offers offset-compensated Ohms on the 10Ω to 100 kΩ ranges to eliminate the errors introduced by small series voltage offsets. Usable for both two-and four-wire ohms, the HP 3458/HFL supplies a current through the unknown resistance, measures the voltage drop, sets the current to zero, and measures the voltage drop again. The result is reduced error for resistance measurements.

Precision ac voltage

The HP 3458/HFL introduces new heights of true rms ac volts performance with a choice of traditional analog or a new sampling technique for higher accuracy. For calibration sources and periodic waveforms from 1 Hz to 10 MHz, the HP 3458/HFL's precision sampling technique offers extraordinary accuracy. With ±100 ppm absolute accuracy for 45 Hz to 1 kHz or ±170 ppm absolute accuracy to 20 kHz, the HP 3458/HFL will enhance your measurement capabilities. Accuracy is maintained for up to two years with only a single 10 volt dc precision standard. No ac standards are necessary. For higher speed and less accuracy, the analog true rms ac technique has a midband absolute measurement accuracy of ±300 ppm using the same simple calibration procedure. With a bandwidth of 10 Hz to 2 MHz and reading rates to 50/second, the analog technique is an excellent choice for high throughput computer-aided testing.

Fluke-Customized Model Offers Standards Lab Convenience

To make the HP 3458/HFL even easier to use in the the standards lab, Fluke has programmed the meter's front panel so that frequently-used functions such as math, statistics, and scaling can be called with just a push of a button. A customized front panel template shows how to gain access to each function.

Easy calibration

The HP 3458/HFL gives you low cost of ownership with a simple, two-source artifact calibration. With its superior linearity, the HP 3458/HFL is fully calibrated, including ac, from a precision 10V dc source and a precision 10 kΩ resistor. All ranges and functions are automotically calibrated using precise internal ratio transfer measurements relative to these external standards. In addition, the HP 3458/HFL's internal voltage standard and resistance standard are calibrated. Now you can perform a self-verifying, self- or auto-calibration relative to the HP 3458/HFL's low drift internal standards at any time with the ACAL command. So, if your dmm's environment changes, auto-calibration optimizes your measurement accuracy.

Calibration security

Unlike other dmms, the HP 3458/HFL goes to great lengths to assure calibration security. First, a password security code "locks" calibration values and the self-calibration function. Next, you can easily store and recall a secured message for noting items, such as calibration data and due date. Plus, the HP 3458/HFL automatically increments a calibration counter each time you "unlock" the dmm - another safeguard against calibration tampering. If you have a unique situation or desire ultimate security, use the internal dmm hardwired switch to force removal of the instrument covers to perform calibration.