Thread: Rear Power Socket Panel Voltmeter

I put one on my P38A.

Originally Posted by p38arover

I put one on my P38A.

Thanks Ron. Exactly the sort of thing I was thinking of. Where did you get it from?

I bought it off evilbay, it looks to be the same as this one: http://www.ebay.com.au/itm/LCD-Volt-...kAAOSwPhdU-PRT

However, I got mine from China for a lot less. Ahh, see here: http://www.ebay.com.au/itm/Blue-LCD-...YAAOSwZd1VZrz9

For the L322, I might look at something like this: http://www.ebay.com.au/itm/DC-20A-10...EAAOSw9N1VwjN7

Ron,
The specs on that last one appear to show it has the ability to measure the amount of energy that has gone through the gauge since the last reset. Is that how you read it?
If so, could this be used to measure battery discharge, replacing other meters that do the same thing but cost around the $100 mark?
The only limit I see is the 20 Amp max power. Maybe this could be overcome using a parallel shunt and multiplying the meter reading to get the actual energy used?
Cheers

Coop

That's the way I read it C00P.

As you say, the 20A limit is, umm, limiting. A shunt could possibly be fitted but one would have to open it up to see where the add it.

I haven't looked to see if there are any higher rated units on eBay.

EDIT: See http://www.ebay.com.au/itm/DC-90V-20...gAAOSwdpxUWiw3 There are links to 30A, 100A, 150A, etc., units

I wonder if you can buy ones using Hall effect current transducer rather than a shunt. Better accuracy and no voltage drop. Still, for $28 I'm going to give it a try.

To the OP question ... I installed one of these ...

https://www.baintech.com.au/componen...rit?Itemid=370

No point in an ammeter at the rear for my setup as there's loads that would come off before it hits the meter (other + feeds from the battery system to elsewhere).

Works well. I sandwiched it between the LH side of the drawers carcass and the trim just inside the back door (D2)

... but I didn't pay $195 for it!

double post