Troubleshooting Electronic Systems: Safety First!

Start with the safety of your clients followed by your own safety.


We get a lot of questions from our readership at the Locksmith Ledger. That's great, because that's one of the reasons we're here. Your questions tell us what we're leaving out of our magazine, and whet topics and issues are on the minds of security professionals. Unlike other trade publications...


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My meter has passed several drop tests from various heights (ladders), passed the submersion test in service station toilet, the solvent test when I got a little wild with an aerosol, and a shock test. My meter even found it's way back to me when I carelessly left it behind at a job, like my old faithful hound Rex.

Equipped with a meter, you can then proceed to the next step: determining if the system is actually getting voltage. All line voltage is Alternating Current, universally referred to as AC Line Voltage. Look for part two of this article in next month's Locksmith Ledger.

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