A6901: Difference between revisions
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(NEW in Tek catalog 1981 p.287) |
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{{Instrument Sidebar | |||
The '''Tektronix A6901 Ground Isolation Monitor''' connects between mains power and test equipment | |manufacturer=Tektronix | ||
without connecting protective ground, in order to safely allow referencing measurements to a low voltage | |model=A6901 | ||
instead of ground, or break ground loops. | |class=Power supply | ||
|series= | |||
|summary=Ground Isolation Monitor | |||
|image=A6901.jpg | |||
|caption=Tektronix A6901 Ground Isolation Monitor | |||
|introduced=1981 | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
* [http://w140.com/tek_a6901.pdf Tektronix A6901 Manual (PDF)] | |||
}} | |||
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, | 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. | ||
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. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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{{EndSpecs}} | {{EndSpecs}} | ||
[[File:A6901 principle.jpg | thumb | 350px| Operating principle (click to enlarge)]] | |||
[[File:A6901 principle.jpg | thumb | 350px]] | |||
[[Category:Power supplies]] | [[Category:Power supplies]] | ||
Revision as of 10:02, 19 August 2021
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. |
