How to read the Volts and Amps on a Nexus NXM 420 MIG Welder

[LJS1972]

Hello,

Please can somebody tell me how I work out the Amps when someon is using a Nexus NXM 420 MIG Welder, it has a display showing the Volts

Thanks

 

[davidjohnperry]

Use a digital clamp on multi Meter

 

[a111r]

The cheap clamp meters only measure AC Amps, so are no use.
The DC Amp clamp meters cost a lot more, last time I looked.

 

[davidjohnperry]

I think screw fix sell one 4 90 quid

 

[eddie49]

Hello and welcome to the Forum.

TecArc sell an add-on digital ammeter, which measures the current through a heavy-duty shunt in the welding path:

Pardon our interruption...

Similar high-current shunt ammeters are also available on eBay:

Pardon our interruption...

 

[Jack Ryan]

I think screw fix sell one 4 90 quid

AC/DC true RMS clamp meters are selling for less than half that here in Australia. At that price I should buy one and compare it to my Fluke meters.

600A True RMS AC/DC Clamp Meter | Jaycar Electronics

Includes DC current measurement with high accuracy, from a compact unit.

www.jaycar.com.au

Certainly becoming an accessible way to measure welding current.

Jack