HIGHEST PERFORMANCE

The Model 6000A Phase Meter replaces the very popular Model 6000. Using the latest digital techniques and optimally designed analog front end, the Model 6000A out-performs any other phase meter on the market today. It also does this at a remarkably low cost. The unit automatically selects the proper range for both amplitude and phase and is waveshape independent. The user only needs to connect the two input cables to the phase meter to obtain a phase reading. Voltage Overrange or Underrange is indicated whenever either of the two input signals is too large or too small. An OFFSET toggle on the front panel allows the user to make differential phase measurements without the need of subtracting large numbers. The Model 6000A is galvanically isolated from ground and from channel to channel.

IEEE-488 AND USB INTERFACE STANDARD

The Model 6000A Phase Meter has an IEEE-488.2 interface and USB as standard features. Via these interfaces, the user can read the display, change the phase range, and check for input signal overrange or underrange, front panel selected offset and phase range.

TWO PHASE RANGES  

The Model 6000A, unlike previous generation phase meters, does not use "zero-cross-over" techniques to measure phase. The instrument uses a sophisticated Fourier Transform approach to derive the fundamental component of each of the two the input signals and then computes the phase difference between the two components. Harmonics and noise are effectively "filtered out". This technique reduces errors significantly.

The high accuracy of the Model 6000A Phase Meter is maintained not only for sinewaves but also for distorted and noisy waves. Unique DFT circuitry produces waveform independent phase readings; hence, the user does not have to activate any front panel waveform selection switches. Two different waveforms of the same frequency may be applied to the Phase Meter simultaneously.

HIGH VOLTAGE INPUT RATIOS

Specified accuracies are maintained not only with equal amplitude signals in both channels but also with amplitude ratios over the entire dynamic voltage input range.

Unique input protection circuitry allows for the sudden application of high input voltages without fear of damage to the Model 6000A Phase Meter. There is no need to slowly increase the levels of input voltages.

Neither input of the Model 6000A Phase Meter is connected to chassis ground nor is connected to the other input; hence, measurements may be made on networks with "earth ground" connections without creating ground loops with their resultant phase errors. Very high common mode rejection is also achieved via fully galvanically isolated front ends.

This option provides a ±DC output which is directly proportional to phase. The sensitivity is -1 volt /degree.