widely used by techs in diagnosing parasitic draws without disturbing the circuit... I too am amazed. You wouldn't think that we could measure just a few mV drop across the small resistance in a fuse and convert it fairly accurately to amps but it does.
I like your reasoning. I bought a 40 or so dollar meter and it has DC amps and it works sweet. I have checked it against my Snap On and I have a couple of Flukes too. All were close. Also, I love that test for parasitic draw. I would b interested in your take on the heat cameras. I mean thermal cameras. Those seem really handy and an affordable one would b nice!!
+Bill Rimmer - I agree, an affordable IR camera would be very nice. Hopefully they'll come down in price but as for now, I can't justify the purchase price vs the occasional use. I did explore the possibility of putting some components in a DIY build but didn't get very far with it. I do own a IR Thermometer (as you likely do). They're the next best thing and cheap!
Really good info Denis all the years I have been a tech and master tech I nether new about reading voltage drop across fuse 😊
widely used by techs in diagnosing parasitic draws without disturbing the circuit...
I too am amazed. You wouldn't think that we could measure just a few mV drop across the small resistance in a fuse and convert it fairly accurately to amps but it does.
I all ways used a loop fused wire and a amps clap . If it was below 10amps used strate in to the multimeter .every day is a learning day
I like your reasoning. I bought a 40 or so dollar meter and it has DC amps and it works sweet. I have checked it against my Snap On and I have a couple of Flukes too. All were close. Also, I love that test for parasitic draw. I would b interested in your take on the heat cameras. I mean thermal cameras. Those seem really handy and an affordable one would b nice!!
+Bill Rimmer - I agree, an affordable IR camera would be very nice. Hopefully they'll come down in price but as for now, I can't justify the purchase price vs the occasional use.
I did explore the possibility of putting some components in a DIY build but didn't get very far with it.
I do own a IR Thermometer (as you likely do). They're the next best thing and cheap!
Thank you Sir. Very useful tool. 👌
+Aldi Shuli - yes, nice addition to tool kit...handy for calibration multiplier in HScope.
Thanks, Aldi:-)
I see the light now :-)
Interesting....big price spread. Very little performance difference. At least in that circumstance. Cheers Denis
thanks
+dan man - welcome
You should have just skipped the AD584 module reference because you almost totally skipped it.