A6901

From TekWiki
Revision as of 06:15, 3 October 2021 by Peter (talk | contribs)
Jump to navigation Jump to search
Tektronix A6901
Ground Isolation Monitor
Tektronix A6901 Ground Isolation Monitor

Produced from 1981 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix A6901 Ground Isolation Monitor connects between mains power and test equipment without connecting protective ground, in order to safely allow referencing measurements to a low voltage instead of ground, or break ground loops.

It monitors the floating equipment ground voltage. If the voltage exceeds 40 V peak, or ground current exceeds a selectable limit of 0.5, 3.5 or 5 mA, the A6901 disconnects mains power and grounds the test equipment.

Key Specifications

DC trip voltage 28 VRMS (40 V peak) or ±40 V DC
Current trip ±0.5 mA, ±3.5 mA and ±5 mA max. selectable
Trip delay <200 ms
Line voltage 90-128 V; 180-250 V; 48-66 Hz
Load power 500 W max.
Operating principle (click to enlarge)