Indeed and for all above but as a general concept, I don’t trust my
voltage meter to store bought but to Fluke pencil detector at times. Detected similar sources for non-voltage in the past
thru the
meter especially if under the operating range due to
dimmer warming. Dependant on the quality of the sniffer, you might detect what other meters correct for... or not
Was on-site yesterday in amongst other things to do, replacing a black Cam-Loc melted down
plug. Forgot my
voltage sniffer but twice tested the
circuit to be dead. Wasn’t satisfied with that though and even with
voltage reading for a
meter in already connecting to the
ground of a live rack with the live
feeder of a dead set of Cam-Loc. How could I ensure someone on-site wasn’t ready for connection even if I wasn’t during the time I was working on the connection? Tracked down like 4/0 100' SC 040 serial number along it’s
line and disconnected from it’s next
jumper to
power supply. Also tagged it with yellow
gaff in Sharpee tag do not connect with my name and company to contact. Than I was sure I during a busy show site, did I work on a dead but potentially live
connector.
As long as I removed my blockages to
current flow, the show went on that night once done. Got the say $247.00 amp clamp Multi-Meter and it’s true
RMS. That can also be a problem in testing stuff. Figures out for you at times what you need to know but also allows that 12-20v
current in saying zero in even if safe oveall. Don’t trust once working on the gear - ensure disconnected and no chance of connection. Your life you ensure by being too careful or in others connecting or powering up a load by accident..
Normally when doing in the area of live work I wear one of my Fluke AC-1 type sensors right around the neck of my shirt. It in being in the way of me moving about reminds me to constantly check, and for any about, reminds them again while doing so, that this is something to be stop work order on. All hands on the
FOH skirt curtain, and just wait there in rolling it up until told to do so afterwards - even if not related. Control over who is where and beyond your markings of the gear you are working on, if too many hands about, ensuring someone wont’ do bad is a good thing.
All kinds of brand of
voltage sniffer... I trust the Fluke over cheaper. Yea cheaper where your life perhaps is in consideration. Pencil meters... the Fluke for me and it has never let me down on dead circuits when it had pilot
voltage. This if not trusting it in disconnecting the
circuit as a general concept.