Clamp on DC current logger

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Hey all,

       I am looking through all the usual suspects, and I thought I would ask here as well.

 

I am looking for a DC current logger for my car battery.  Here are the specs I have for the device:

 

1) 500ma resolution

2) Minimum detectable current 1amp, must be able to sense up to 25 amps

3) Must clamp on to heavy battery cable

4) would like it to be able to connect to the battery if possible, but not a requirement

5) low power operation(obviously)

6) must be able to store minimum three days worth of readings with 4 readings per hour.  Each reading will last 10 seconds

7) PC connection nice, but a local screen is acceptable.

 

 

Any suggestions welcome and appreciated

 

East Coast Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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Could you craft together a generic logger (even some multimeters have logging) using a GMR current sensor?

Of course, a put-together system save times and aggravation.

 

Here's one $$$, big bucks.....also under hood is an extreme/hot  environment for any test gear (clamps/meters/loggers)

https://www.amazon.com/AEMC-CL601-Simple-Single-Channel-Current/dp/B008S04SW0

 

Might want to log voltage while you are at it, since it is half og the equation.

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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avrcandies wrote:
Could you craft together a generic logger (even some multimeters have logging) using a GMR current sensor?

 

Nah

avrcandies wrote:
Of course, a put-together system save times and aggravation.

Bingo!!

 

avrcandies wrote:
Here's one $$$, big bucks.....

Yeah, I dont need to go that route, but thanks for the suggestion.

 

I was doing some searches on Aliexpress last night and found a Clamp on DC probe that connects to an oscilloscope, but then I have to build the rest.  Not what I have time for and this will only be used for a few weeks.

 

Back to the searches

 

Thanks

 

JIm

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user