Electronic Amp Meter

Might help if you said where you live.

Fot the right shunt in parallel and these can read anything you want..

Note: Running 50A into the passengers' compartment just to measure it is probably a terrible idea.

Can some point me in direction for a wiring diagram to build an Electronic Amp Meter to read up to 50 amps charge/discharge? This for automotive use on a 12V DC system.

Or does some know where one can buy one off the shelf?

Regards

Tony Christian

One day Tony Christian got dressed and committed to text

Never forget that Google is your friend, just a quick search on "current shunts" should keep you occupied for a while :-)

-- Regards ..... Rheilly Phoull

How about something adapted from this

Wes.

You can take a look at

on

Your local auto parts store will have such a device for ~$10 e.g.,

T> Can some point me in direction for a wiring diagram to build an Electronic

on

I couldn't agree more. What's the big deal?? Back in aught-six any self-respecting teenage car owner tacked one beneath the dash as soon as he held clear title. Ammeter and oil pressure. You could buy the set pretty much anywhere.

Replying to Rheilly's post with this question is not the done thing. Your question should have been directed to the OP.

yeah sorry my mistake.

Just about any auto parts store carry those

David

T> Can some point me in direction for a wiring diagram to build an Electronic

Try:

Remote sensing and programmable to use a 5.0 to 900 amp shunt

Regards,

Bert van den Berg CruzPro Ltd.

on

on

Add your own (remote) shunt. It'll display volts as well.

Hi,

You could buy the BMV-501 several companies offer this device. I have a Victron.

on

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Is that because the meter needs a floating ground, or is there another reason?

On Mon, 2 May 2005 16:31:27 +0700, "Wes." put finger to keyboard and composed:

Slightly OT, but I notice that Silicon Chip Magazine incorrectly refers to the wire to be measured as a "half-turn" primary winding. Consequently I wonder whether their design overestimates the current by a factor of two??? Then again, perhaps their calibration procedure accounts for the anomaly?

"Unlike this unit, many commercial current clamp meters can only measure AC. That's because they are basically current transformers, comprising turns of wire around a magnetic core. This magnetic core is clipped around the wire to be measured, which effectively behaves as a half-turn primary winding."

- Franc Zabkar

David