DIY: Fluke SV225 Stray(ghost) Voltage Adapter

[diy_guy]

This seems like a great product, but to amazon it north of the border it would cost +$100 + shipping - yikes!

I read this for a diy project but dont know where to start. Diagrams help.

http://www.electriciantalk.com/f14/fluke-stray-voltage-eliminator-25070/

[David_AVD]

Interestingly the data sheet says 3K impedance, but "Voltages up to 1000 volts continuous can be safely applied to the Adapter without damage".

Wonder what's inside?

[diy_guy]

maybe someone can "take it apart"

[gaijin]

Wonder what's inside?

My guess a 3k resistor.

[David_AVD]

Wonder what's inside?

My guess a 3k resistor.

But if you put a 3K resistor across 1000V the power dissipation would be huge.

[gaijin]

PTC inline with a resistor, these adapters are not for continuous use.

[David_AVD]

That was my guess too.  The max voltage would be rather less than 1000V, but I didn't read the whole manual to see what it was.

[diy_guy]

maybe someone can "take it apart"

...so I can learn to make my own and save +$100.00. Anyone do a "take it apart" vid?

[jaslies]

Hey everyone,

I'd like to make one too! It would be cool if someone took one apart and showcased the components. Or at least make a resistance measurement.

Kind regards!

[Monkeh]

The max voltage would be rather less than 1000V

Why? There are PTCs rated to quite high voltages, and many of them have nominal resistances around 1k - three of those in series, you've got your ~3k load which is tolerant to high voltages.

[aqibi2000]

Did anybody get around to building this?