well the next parts of a multi we're going to talk about is the inline amp function that means that meter is going to go in line with the circuit we're going to break the circuit and put it in line that way whatever current that that device is pulling has to go through the meter with that i can very very accurately read how much current something pulls one of the biggest questions you know texas asked me at times is why would i ever need that what's that on there for well a good example is you've got a truck that every monday morning doesn't start well usually that's one of two things you either have a defective battery that's pulling all the batteries down or you could have devices staying on that may be something that's supposed to stay on such as tracking system communications or it may be a light's not shutting off that's supposed to before you try to use your amp function you got to make sure you understand how to set your meter up we're going to go over here to our amp function and we have to make sure we move the red lead to the right spot we're always going to start off on the high or the 10 amp function i've got my meter set up i can actually put it in the circuit right now and make sure what my parasitic load is or what my circuit load is a couple different ways to do it first one is the most obvious i'm just going to pull my power wire off the junction stud you take that i can hook my meter up to one side since i've only got two hands i'm gonna go ahead and turn my light on and as soon as i touch this it's gonna complete the circuit and my light should come on and i can look at that and i'm basically pulling just a little over half an amp another way it's even easier is we can simply take our fuse out do the same thing use our meter to complete it take the place of the fuse exact same ring we do the exact same thing this just sometimes can be easier to get to if you're dealing with a fuse panel or a circuit panel where you can get at it again we talked about you know verifying our work we have our multimeter plugged in here so we're completing the circuit we see what our load is if i shut it off that load should totally disappear which it did so we know there is nothing else on this circuit if we did have something staying on or again the example of that truck that has dead batteries every monday we can use this to verify we do have a load but now we gotta go back through and find out where that load is just like it was very important before we did this test we had to set up our meter properly here's a big thing to keep in mind before you put your meter back up turn it off and move your meter lead back to the normal position if you forget and you leave it in the amp meter function first time you put it across the battery or positive negative you're going to take out your fuse in 12-15 bucks shot simply because you forgot to reset your meter you