Clarke-Hess 6000A

 CLARKE-HESS 6000A Precision Phase Meter  

Using the latest digital techniques and optimally designed analog front end, the Clarke-Hess 6000A outperforms any other phase meter on the market today.  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 Under-range 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  Clarke-Hess 6000A is galvanically isolated from ground and from channel to channel.

The Clarke-Hess 6000A, unlike previous generation phase meters, does not use €œzero-crossover " techniques to measure phase. The instrument uses a sophisticated Fourier Transform approach to derive the fundamental component of the input signals. Harmonics and noise are effectively €œfiltered out ".  The high accuracy of the 6000A Phase Meter is maintained not only for sinewaves but also for distorted and noisy waves. Typical harmonic rejection is 80 db or better.    The Clarke-Hess 6000A Phase Meter has an IEEE-488 and USB as standard features and an optional LAN interface. Via these interfaces the user can read the display, change the phase range, and check for input signal overrange or under-range, front panel selected offset and phase range.

Specifications for the  CLARKE-HESS 6000A Precision Phase Meter Include: