Tb 302 rpm

[shortarc]

I have had my TB302 for several years and it runs and welds great but after reading several post on here I bought a multimeter with a Hz. scale on it and thought I would check the RPM by the Hz as recommended on here.

When I plug it in to the outlets on the welder it jumps around so much you can't tell what it's reading. When I plug it into an outlet in the shop it shows a steady 59.9.

What am I doing wrong?

Guess I wont worry to much about as it runs and welds great as is, but just curious.

[cruizer]

your doing it correct, whats happening is that you have no smoothing function on your meter,

[Rezeppa]

To get a good Hz reading you need a decent multimeter. Cruzier stated you need a smoothing feature or graphing function.

[shortarc]

Ok guys any recommendations on brand or dealer to locate the meter that has the "smoothing" feature? I've spent a couple of hours on the web looking at meters and none of them have that feature described in the specifications?

That is if I can return this one and get my money back.

[cruizer]

All flukes do. all the same though, why not just meter in your machine as close as you can get it.

[shortarc]

That's what I've done in the past and I guess continue to do, set it by display to 3.750 RPM.