High voltage watt meter

[mrdakota]

I'm tired of glancing at the watt meter and seeing "high-V" displayed
with these over 50v batteries becoming more popular I'd think someone would have made or modified a watt meter to read over 50 volts.
I searched around but didn't come up with anything. :(

[Jeffery]

Interesting that your search didn't turn up the original Whattmeter, the Astro 101. It's good to 60V, but is only rated for 70A (it'll read higher amps than that if pushed).

[sun.flyer]

Interesting that your search didn't turn up the original Whattmeter, the Astro 101. It's good to 60V, but is only rated for 70A (it'll read higher amps than that if pushed).

Agreed.

I've pushed mine past 70A many times and it still continues to read the amperage (still works for me today). :)

Tim

[Edd Spidell]

Hi,

This will get you to 60 volts at 100 amps:

http://www.medusaproducts.com/Power-Analyzers/pa-60100R.htm

Or, use a clamp-on type (goes over/around wires - magnetic coupled) digital meter.

Lastly, I use a current shunt, which gives a voltage output of 1mV per ampere, up to 100 amperes. There are even higher capacity models (+1000amps) available, normally fan-cooled. No real worries about voltage limits with the packs we might use, which are limited by what the ESC's can handle, unless you have just a big MOS-FET switch.... :D

Regards,

Edd

[lutach]

BNB Products DPR-150 can go up to 65V and 150A. http://www.bnbproducts.com/

[mrdakota]

BNB Products DPR-150 can go up to 65V and 150A. http://www.bnbproducts.com/
Thanks, but I'm looking for one that I could read real time easily :)
I didn't know the original Astro meters were good for 60v.
Thanks again

[lutach]

Thanks, but I'm looking for one that I could read real time easily :)
I didn't know the original Astro meters were good for 60v.
Thanks again

Ok. This looks really interesting: http://www.rcaccessory.com/index.asp?PageAction=VIEWPROD&ProdID=362&HS=1. It's a wattmeter plus a balancer.

[Dorsal]

http://tinyurl.com/3r8swe
"Accurate & precise - 0.01 A current and 0.01 V voltage resolutions
Rugged - handles 50 A continuous and 100 A peak at 60 V "

[mrdakota]

Ok. This looks really interesting: http://www.rcaccessory.com/index.asp?PageAction=VIEWPROD&ProdID=362&HS=1. It's a wattmeter plus a balancer.
That Bantam unit is nice and I think a good price for the feature in it. Good packaging it looks like also.

Thanks,

[mrdakota]

http://tinyurl.com/3r8swe
"Accurate & precise - 0.01 A current and 0.01 V voltage resolutions
Rugged - handles 50 A continuous and 100 A peak at 60 V "
Nice unit, but I'm afraid that with 14 AWG wire and its size being a bit small for my tastes, I'll pass ;)
Thanks also,

[karl k]

If you really want something that will handle all that voltage and current, go with one of these:

http://www.eagletreesystems.com/MicroPower/micro.htm

http://www.eagletreesystems.com/MicroPower/images/mprv3-angle-sm.gif http://www.eagletreesystems.com/MicroPower/images/powerpanel-angle.gif

Eagle Tree continues to innovate in data collection with the eLogger V3. In addition to greatly enhanced resolution and accuracy, the V3 now supports voltage to 70 volts, current to 100 amps (150 amps optional), GPS (with optional GPS Expander), 4x the logging capacity of the V2, Three Temperatures, and Throttle Logging (or logging of two RPMs)!

And now, you can connect the V3 to the data port of your Spektrum AR9000(TM) or JR R921(TM) Receiver to log and display RF Link performance data! Purchase the Spektrum(TM) interface cable below.

Not only can you store the data on your computer, but you can view it right on the plane using the power panel pictured to the right of the logger. I personally use one of these in my large planes as a sort of "black box" in case anything goes wrong. You can look back and see what happened to understand why the plane acted funny.

Karl

[Geoff Dryer]

I have used my Wattsup meter under 12S and 90 Amps without smoking it.

http://www.rc-cars-planes.com/