As you can see in the solar meter base the wiring actually looks backwards.
How to connect amp meter to solar panel.
I ll show you how.
Wiring diagram of a typical residential solar metering installation.
Ebay volt amp meter how to in this video we look at how you have to connect of the cheap ebay 100v 10a panel meters if you want to power it and read the valu.
To test a 18v solar panel voltage output directly put your solar panel in direct sunlight set your multi meter to the dc volts setting.
The meter side is not measuring current directly but the very low voltage drop across the shunt so the meter and the shunt have to be matched.
A fused disconnect is always used and goes out to the solar panels.
The power meter is a chea.
Bought an ammeter and shunt from china with no instructions how to wire it.
In this video i show how to wire up a solar panel power meter in my vw t4 campervan conversion with links at the end for the items.
The wires in the top terminal go out to the solar panels and the wires on the bottom terminals go back and tie in to the utility.
So you can buy a panel ammeter with a built in shunt or use a separate shunt wired in at the battery s.
I am running one 20watt solar panel loading.
But meter and shunt must be matched.
The meter displays the small voltage as amps.
You want to choose a voltage range capable of displaying the maximum possible voltage of the panel in open circuit this means that if you have a panel rated for 20 volts you should set the multi meter.