Thanks Dave! I probably should have bought one of those meters years ago--($300 to $400).. It appears that the Fluke 375 gives min, max and average currents. There also appear to be data logging clamp on meters, as well as other AC current data longing transducers, such as transformers, coils etc.
I don't believe that the Kil-A Watt, meter has a rapid enough response to measure the inrush current. I did run across several cheap (about $16 to $20) meters, one of which measures DC and the other AC, on Amazon--not fast enough, but look as if they would be really handy for the boats!
http://www.amazon.com/6-5-100V-Display- ... G36THB7RD7
http://www.amazon.com/80-260V-BAYITE-PZ ... T0TK6QCD8C
I could see building in a small box which had one or both of these. For the Air conditioner, it would give you a trackage of how much power is used. I would put both in a box, for my charging and battery monitoring of the dedicated Group 30 battery I use for the freezer/refer. That way I can moniter the state of charge, of that battery (in and out--(not as good as the more expensive meters, but only a fraction of the price.)
I don't believe that the Kil-A Watt, meter has a rapid enough response to measure the inrush current. I did run across several cheap (about $16 to $20) meters, one of which measures DC and the other AC, on Amazon--not fast enough, but look as if they would be really handy for the boats!
http://www.amazon.com/6-5-100V-Display- ... G36THB7RD7
http://www.amazon.com/80-260V-BAYITE-PZ ... T0TK6QCD8C
I could see building in a small box which had one or both of these. For the Air conditioner, it would give you a trackage of how much power is used. I would put both in a box, for my charging and battery monitoring of the dedicated Group 30 battery I use for the freezer/refer. That way I can moniter the state of charge, of that battery (in and out--(not as good as the more expensive meters, but only a fraction of the price.)