A clamp on ammeter only works on alternating current using magnetic induction so it would not show any current flow for the direct current used in automobiles.
Incorrect info, go to the bottom of the class.:wink:A clamp on ammeter only works on alternating current using magnetic induction so it would not show any current flow for the direct current used in automobiles.
You'll not get a DC clamp meter with resolution less than 100ma amps to my knowledge , my Flir one is 0.1a for sure.Hey, so I bought an AC clamp meter with the intent of checking how much draw there was on my car battery while the engine was off / car was supposedly sleeping.
I turned it to the "A~" position and clamped it round the negative battery cable - it read 0. So I guess I'm doing something wrong?
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Any clever people here know what I'm supposed to do with it? I know I should probably RTFM too... ><
By the time that the car has gone to sleep , the clamp meter will have gone to sleep too / powered off ......As above, unlocking the car puts it back into convenience mode; stuff like the seating column motors/memory, seat adjustment, mirror adjustment become active and the satnav/infotainment system and climate control go into a half-started standby state. If you want to get a true reading with the car locked then leave the battery cover out and remove the loadspace cover in the tailgate, it just unclips, that should leave the clamp meter visible through the rear window without having to open the car.
Just to be clear, I am only talking about unlocking the boot here with the fob, not the whole car.As above, unlocking the car puts it back into convenience mode
Don't presume, just go and try it on your car as well and you will find that I am right unless my car is unique!I think for that, "door" will also include tailgate