33 - How to Read My Multimeter - Introduction to Fire Alarms

[@crimsune]

I've learned a ton watching your videos. Fire alarm info is hard to find. Your explanation about the modules used for conventional smoke detectors (power source needed) was great. Would love to see an isolator explanation. Thanks for putting these vids together!!

[@abdelssami]

the best videos on youtube when it comes to FA , thank you

[@stevebeaudoin4135]

Thanks Joe, i follow you since a long time now. 10 years Electrican here, Canada, we often wire Fire Alarm system. Then Tech FA company program the Pannel.

[@TemiAbiel]

You are the best Joe 👌👏👐

[@JoshKellyKoshJelly]

Watching this at 3am in a pump room to brush up while tracking an intermittent ground fault. 🤙

[@evangelistar74]

Great advice

[@firealarmapprentice4517]

I recently repaired a panel that had 1 "hard" earth fault plus 2 "soft" ground faults. In 35 years I have only come across this 3x and they are very difficult to solve.

[@abdulrahman8868]

Thanks Joe it is an amazing video,i just waana make sure that i understand it correctly so basically here you are explaining about Nac output ? would it be the same for slc ? at 8:13 u said threshold should be -100k or 100k ?

[@applefan6558]

I'm that guy in the Facebook group 😂 Needless to say it was a bad device lol Great vids man love em

[@JoeKlochan]

Lol, that's awesome. Glad you figured it out. Feel free to reach out if you have anything I can help with.

[@sherpaderpa1]

Hey! Maybe my intermittent ground fault is due to the resistance value temporarily meeting the ground fault detection level and then dropping below it again, for some reason.

[@JoeKlochan]

Did you see my reply to your other comment on the other video?

[@kannanasokan3089]

Hai sir system fault showing, i disconnecting all cables but same priblem showing, can i hep

[@MichaelBrianInc]

So if you meter OL, you’re good and if you meter a value, then you should start paying attention is that correct?

[@JoeKlochan]

If you meter OL to ground you're definitely good. If you rear anything in the Megaohm (M) range you're probably good, but the lower that number gets, the more of a problem it is. 5M Ohm to ground wouldn't concern me at all. 1M Ohm to ground would a little bit. 500k Ohm to ground would definitely concern me and I'd go find it (Unless it was Friday).

[@timsmith3710]

@@JoeKlochan so in the example would 3.2 be ok Joe?

[@carlh4279]

50k to 100k sorry, that would be outside of the threshold by about 35k. 15k is the UL spec.

[@jlmm3968]

I had more success with an old fashion analog meter for ground faults had a tamper switch that was leaking a little here and there got ground and fluke was always jumping around analog was yes or no .

[@yjtheproducer144]

What’s your website/email

[@JoeKlochan]

I don't have a website. Email is k Joeklochan at Gmail