Battery Indicator wiring

[nzkunal]

Hi,

I am trying to use a battery indicator as an ammeter. RD item 244884

I tried wiring it in series between a DC power supply and a resistive load but am not getting a reading.

Any help would be really appreciated...

A link to the indicator is:
http://www.rsnewzealand.com/cgi-bin...feceeldgkidhgn.0&cacheID=nznetscape&Nr=avl:nz

 

[mister_rf]

So it’s a 20Amps full scale ammeter.
You need a large current in order to read some indications on it. What was the voltage and the load used for?

 

[nzkunal]

I have a 1.8ohm 320W load that I am using for testing. It actually sort of works now but isn't very accurate and I have noticed if I apply an instantaneous current the measurement is more accurate than if I ramp up slowly. I am going to return it to RS.

Perhaps iron magnet ammeters are inherently inaccurate or maybe its just this one or type...

 

[StuartB]

Just been looking for digital display voltmeters for a power supply I'm building and came across a seller on EBay.
Loads of digital display Volt, Current meters at really good prices. Current meters up to 500 Amp.
They also sell the 500 Amp shunts needed to go with the meters.
Here's an item number to paste in the search box on EBay :330220177287
If you do have a look check out the sellers shop. They also ship worldwide.

Just thought it may help.

 

[nzkunal]

Thanks, just had a look. Those digital amp and voltmeters would ve been perfect but I ended up ordering a dual channel panel meter from RS.

Will keep this storefront in mind for future reference!