Cable tester graphical TDR

The Fault Mapper Pro Model CA7026 is a handheld graphical TDR (time domain reflectometer) designed for identifying and locating faults on power and communication cables, given access to one end only. The unit measures cable length and indicates the distance to cable faults and terminations to a range of 3500 m, on virtually any type of cable of two or more conductors.

It shows a reflection profile of the cable under test as an oscilloscope-like trace on a 128 x 64 pixel graphical LCD. A movable cursor can be aligned with points on the trace; the distances displayed will automatically update to the cursor position.

The unit has a selectable impedance facility allowing it to be matched to the cable under test. This automatically eliminates the transmission pulse from the display, enabling easier identification of short range faults and terminations.