u3b3rg33k's latest activity

I've been wanting to figure out a way to get differential air pressure readings into the house automation system so I could actively...

Used the drill press some and left the display in temperature mode. It doesn't go up more than 2 C even if I intentionally leave it...

this looks fun

Yup I used the wrong word. but I was asking Ego so he could tell the class and take credit. I wouldn't expect any less from GJ...

Like the previous one, the thermal aspect is not ideal. Typically it doesn't run for very long at a time. Drill one hole maybe two...

If you want the exact same color as the original you need to call these guys: http://www.rileypaint.com/ Riley Paint Company. They are...

if you give it a few turns of wire you can bump it up a scale or two. but yeah i did give up. there's only so much money in the scope...

it's an i400s on my rigol ds1054. there ARE other ground paths - namely the ground, the equipment has a metal chassis. I have not...

a basic X, Y setup with inductors. and a nice giant choke on the cord itself. off-the-shelf tech that's in most power supplies (but...

grounded B has no 120 or 208. just 240 delta.

i mean i use my Fluke amp clamp on my 1GHz scope. if I run without the GFCI and with a proper ground, i'll see something like 8mA on...

Bypass the gfci. With vfd load at steady state, read current in both legs and the grd. A fluke is probably giving you an rms value...

with a filter, measured with my fluke clamp and scope, it was under 1mA. still tripped. hence my skepticism.

Get a big, used 3ph 7.5hp recip compressor(cheap because nobody wants 3ph) and run it off a cheap 10hp VFD - I used Mollom from amazon...

here's what's to get: I WANT TO KNOW IF THE 30mA RCD WILL ALLOW A VFD TO OPERATE. i WANT to be able to run my VFDs on GFCIs. that's it...