A6901: Difference between revisions
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The Tektronix A6901 Ground Isolation Monitor. | {{Instrument Sidebar | ||
|manufacturer=Tektronix | |||
|model=A6901 | |||
|class=Power supply | |||
|series= | |||
|summary=Ground Isolation Monitor | |||
|image=A6901.jpg | |||
|caption=Tektronix A6901 Ground Isolation Monitor | |||
|introduced=1981 | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
* [[Media:070-3618-00.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, 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}} | |||
{{Spec|DC trip voltage| 28 V<sub>RMS</sub> (40 V peak) or ±40 V DC}} | |||
{{Spec|Current trip| ±0.5 mA, ±3.5 mA and ±5 mA max. selectable}} | |||
{{Spec|Trip delay| <200 ms}} | |||
{{Spec|Line voltage|90-128 V; 180-250 V; 48-66 Hz}} | |||
{{Spec|Load power|500 W max.}} | |||
{{EndSpecs}} | |||
==Links== | |||
{{Documents|Link=A6901}} | |||
[[File:A6901 principle.jpg | thumb | 350px| Operating principle (click to enlarge)]] | |||
[[Category:Power supplies]] | |||
Latest revision as of 02:33, 10 October 2023
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. |
Links
Documents Referencing A6901
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| 60AX-4741.pdf | Application Note | Floating Oscilloscope Measurements ... And Operator Protection | 1981 | A6901 • A6902 • 221 |
