Eagletree data recorder q - RC-Monster Forums

fastbaja5b · **Eagletree data recorder q -** 06.28.2009, 10:33 AM

Hey I am looking at an Eagle Tree recorder just to get a better idea of where my setups are at.

Is a 100A one sufficient for my Savage Flux?

Can I just wire it in one pack and get readings for that one pack (stock esc has a serial connector set up to two plugs)

E-Revonut · 06.28.2009, 10:37 AM

I'm looking at getting an eagle tree as well. However I think the 150A version will be more appropriate for larger vehicles.

I would wire it in to get a reading from both packs.

J57ltr · 07.09.2009, 01:08 PM

I run a 150 in a rustler and have seen peaks of 175 amps on 4S a123 and a 6000 Kv motor so I would go with the 150A version for anything larger than 10th scale. Normally I see peaks of 130A using 2S2P A123 just running a 4436Kv motor. My Rustler probably weighs less than half of a Flux. It weighs 4.52# even with everything on it including the data logger 3 temp sensors and RPM sensor and a 2S2P battery pack.

Jeff

Jabe · 07.09.2009, 01:55 PM

How much can 150A version record in amps? Is there some limit, that it wont show/record more than say 200A?

J57ltr · 07.09.2009, 02:04 PM

Don't know I have the value set to 200 in the min max tables, so I am not sure what the max is. I do know with a 600Kv motor and 4S 123 I have seen as high as 175 the only hotter motor I have is a 7700 that came with my MM. I normally don't run it like that right now I have a 3300 Kv motor and it pulls 95 amps with the same battery. I have tried the 7700 on 3S and got around 160 or so. I'll have to look at my logs, I log about everything even changes in gearing and tires.

Jeff

snellemin · 07.09.2009, 03:38 PM

Aah, but have you logged your TX yet?

J57ltr · 07.09.2009, 04:12 PM

Quote:

Originally Posted by snellemin

Aah, but have you logged your TX yet?

.35A-1.2A

Jeff

snellemin · 07.09.2009, 04:15 PM

LOL. I got some more of those sqaure lithiums cells.

J57ltr · 07.09.2009, 04:20 PM

My bad I was thinking Rx, Haven't tried the Tx...yet. Cool Can I get 3?
JEff

E-Revonut · 07.12.2009, 12:40 PM

Getting ready to order an eagle tree but have a question. What temp sensor do you recomend for a motor?
micro temp sensor
http://www3.towerhobbies.com/cgi-bin...1&I=LXPBP3&P=K
cylinder head temp sensor
http://www3.towerhobbies.com/cgi-bin...1&I=LXFVF6&P=K

The cylinder head sensor looks to be the easiest to attach to the motor

BrianG · 07.12.2009, 12:54 PM

If you have some spare parts around, make your own. It's simple: http://rc-monster.com/forum/showpost...1&postcount=68

E-Revonut · 07.12.2009, 01:00 PM

I don't have the parts and at less than $10 it's not a big deal. I'm planning on ordering the v3 150A logger, brushless rpm sensor and at least 2 temp sensors (motor and lipo, or motor and esc). Not to concerened about esc temps since I have never got a reading over 110* on my mmm and have only had the fan come on a couple times, high gearing on a hot day.

J57ltr · 07.12.2009, 01:10 PM

They need to be a 10K NTC thermister I bought a bunch of them at an old electronics store we have around here, they have anything you could imagine! I just used them and a rx plug like Brian did, although I like his thermistor better for a motor application. I have just been taping them to the motor with some kapton tape and some heatsink compound (it's a must on the motor).

So I basically use 3 of these LXPBP3

Jeff