Versatile and accurate tool for measuring time, frequency or phase has built-in analysis capabilities which indicate the dynamics and the statistical behaviour of the parameter under test
The Fluke PM 6690 timer-counter-analyser, now available from TTi (Thurlby Thandar Instruments), is a versatile and accurate tool for measuring time, frequency or phase.
The PM 6690 has built-in analysis capabilities which indicate the dynamics and the statistical behaviour of the parameter under test.
It also offers an intuitive user interface and graphical display that makes it extremely easy to use, says TTi.
The PM 6690 combines a speed of 12 digits per second for frequency measurements with 100ps single-shot time resolution.
Phase measurements are carried out at a resolution down to 0.001deg, and are speeded up by a 'single pass' technique.
The instrument can acquire and store up to 250,000 measurements per second, and 2000 measurements per second can be made over the built-in bus interfaces.
The internal memory can hold as many as 750,000 measurement results for further analysis.
The menu-driven instrument control structure reduces the risk of mistakes.
The main measurement result is supported by auxiliary parameter readings, which eliminate the need for other instruments like a DMM or an oscilloscope.
The phase relationship between the input and output signal of a device can be measured while the user simultaneously reads the test frequency of the signal and the voltage ratio (in decibels) between the input and output signals.
The graphical presentation of results using histograms and trend curves gives a clear understanding of random signal distribution and of system changes over time.
Auto-trigger automatically sets the optimum trigger level and hysteresis for the actual signal applied.
The PM 6690 incorporates a graphical display which presents the measurement results in numerical (up to 14 digits) or graphical format.
The display is also used to present the set-up information as part of a convenient, menu-driven control system.
The display gives the main measurement as well as auxiliary measurement results, so that commonly asked questions like 'what is the attenuation and phase shift of this network?' are answered directly by a single look at the display.
The results of statistical analysis can be presented as numerical data, as a trend graph, or as a histogram, giving an insight into the behaviour of the device under test without the help of external processing.
The PM 6690 is equipped with both GPIB/IEEE-488 and USB interfaces for high-speed communications with a PC.
The GPIB interface allows easy integration in larger test systems.
Alternatively, the USB interface can be used for rapid communications with a PC in smaller test set-ups
