Inventors:
Florian C. Deibele - Portland OR
William F. Schell - Banks OR
Assignee:
Tektronix, Inc. - Beaverton OR
International Classification:
H01H 922
Abstract:
A probe-actuated guard-shield switch mechanism automatically disconnects a guard shield to an input terminal of a measurement instrument upon insertion of a guard probe, and reconnects the guard shield upon removal of the guard probe. The mechanism provides a break-before-make connection sequence for safety reasons, and also provides a non-conductive safety gate to minimize shock hazard.