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ABOUT GAS
FAQ - Cables
3. Where should I earth the cable screen (shield)?
3. Where should I earth the cable screen (shield)?
The screen of the cable should normally be connected to 0V, ONLY at the controller and NOT at the detector.
However, if the detector is mounted on a non-conductive surface, then the detector enclosure should
be earthed locally OR through the cable screen.
It is essential that electrical current does NOT flow in the detector cable screen as may happen if the screen was earthed at both ends.