Large scale watt meters?

[RC Technics]

I am looking for a watt meter that can measure 7500+ watts, 150-200+ Amps at 50 volts. The only ones I can find for modeling only go up to 5000 watts, 100 Amps, 60 Volts.

Can some one please tell me what they are using to measure the Watts on there large power plants.

[feathermerchant]

Since my large planes use multiple packs, I just read Watts on one pack and scale accordingly.

[RC Technics]

Just so I have this right. If I had 4 packs 2S, 2P and I plug the meter between the output on one of the packs and the battery and the Y going to the ESC (Jeti spin 200) and then just multiple my reading by 4?

[Jocke]

We need large scale wattmeters, 300A 63v.

[authomassen]

I pre ordered this som time ago: Link (http://www.eagletreesystems.com/MicroPower/micro.htm)

Up to 70 volts and 150 amps, $89.99. Add a $39.99 lcd power panel and you've got a pretty good deal. I fyou want more than 150 amp capabilety I'm out of ideas...

[Jocke]

I use 150Amp on my 40 to 60 size planes...i need more ;)

[feathermerchant]

Just so I have this right. If I had 4 packs 2S, 2P and I plug the meter between the output on one of the packs and the battery and the Y going to the ESC (Jeti spin 200) and then just multiple my reading by 4?

If you are using 4 of the same size packs in any arrangement and you plug the Wattmeter into just one of them then you'll multiply the Watts by 4.
So Yes.

[twest]

Astrobob said he made a custom version of his whattmeter to test his astro 120 motors, good to 200 amps. Maybe we could encourage him to put some on the market.

[Dennis C]

3900 watts in a 40-60 size airframe is a lot of power
8s2p 4000mah packs at nearly 20c WOT

Video please

Dennis

[Dennis C]

oop's forgot which thread I was in Not 40-60 size glo. but then 4000 watts is still a lot of power in a 40cc size 17 lb gasser

Dennis

[Jocke]

150A is for my low performing planes...remember i usaly use and outrunner or direct drive motor, hearing the experts on this forum these motors are very inefficient... so i need to put on alot of watts to get some sort of power out to the prop :)

[hul]

you need one of these, 2000amps, 600V. The screen shows a part throttle reading of my Funjet.

A normal clamp meter and a volt meter would work too. Multiply the readings.

Hans