Resources

Downloadable Spec Sheet BI-.35S1 Impulse Fault Locator (Thumper) & HI-MEG D.C. Tester

VON’s BI-.35S1 provides the most universally accepted way to locate underground cable faults. “Thumping“ is still the only system that works reliably on shielded cable such as URD type concentric neutral cable. This unit contains a VON continuously adjustable impulse control gap, high
reliability VON voltage doubler circuit with silicon rectifiers, separate sockets for testing and fault locating, optional built in inverter with 15 ft. battery leads that permit operation from a 12 volt truck battery, and much more.

Downloadable Spec Sheet

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