New voltage measuring method

[bartx]

I came up idea of new voltage measuring method. It's really tiny voltmeter, which is built in lcd poster. It has three wires - GND, VCC (5-30V) and measuring wire (0-30V). GND of course has to be common. Mounted in on P5E3 Deluxe and it works great. Accuracy is very good too - on 7900GS I had 1.282v on DMM and 1.27V on this poster. Here is the picture, how it looks placed on P5E3. It's powered from 8-pin ATX connector.

 

Edited March 23, 2014 by bartx

[Guest barbonenet]

very confortable;)

[Vivi]

Myself and wizerty have been using these little things for a while, they rock! It will flood the OC world now i see

 

PS: i have those exact same ones. I never used them this way though, cool ideaaa

[FireKillerGR]

Actually Wizerty has done this before you and he has all the photos which can be used as proof.

[der8auer]

How can I find them exactly? Special name?

[riska]

ebay.com

 

http://www.ebay.com/sch/i.html?_sacat=0&_from=R40&_sop=15&_nkw=small+voltmeter&rt=nc&LH_BIN=1

 

They are dirt cheap i have been using them over a year now

[Calathea]

That's actually brilliant Simple and clever.

[GENiEBEN]

The whole point of DMM's were to be accurate, these don't seem to be. Neat tho!

[Calathea]

The whole point of DMM's were to be accurate, these don't seem to be. Neat tho!

 

Bro, do you even bench?

[der8auer]

The whole point of DMM's were to be accurate, these don't seem to be. Neat tho!

 

I found some in Germany for 2,50€ per piece. Measurement error 1%. Actually pretty good if you just want to measure a voltage of e.g. 1,213 volt.

[riska]

buy this one

 

http://www.ebay.com/itm/181214296661?var=480272183725&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

 

free shipping 1% error reading an only 1.43 can $

[Don_Dan]

Despite offering worldwide shipping the auction site tells me: Does not ship to Germany

 

What do guys think of these? Pretty cheap and they claim 0.1% measurement accuracy.

[I.nfraR.ed]

I ordered from these http://www.ebay.com/itm/400579000910?var=670143131642&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 some time ago, because most of the sellers were not shipping to Bulgaria. A little bit more expensive though.

Still waiting for the package.

PS: Don't buy these, 1% accuracy, 1 digit after the decimal sign.

Edited July 2, 2014 by I.nfraR.ed

[Splave]

I think they are nice for AMD black screen benching for sure

[Samsarulz]

Hi guys!

 

Was looking for some of these. But was wondering how to connect the wires. As you know, one is for GND, but other two... where I´m supposed to put them?

 

And last but not least how can I power on the lcd (to make it work).

 

Thanks

[suzuki]

Black to neutral ,red to 12v and the white/blue one which remained you put it at the spot you want to measure.

[Bogd4n]

Neutral, you mean GND?

[suzuki]

Gnd ).

[Samsarulz]

Black to neutral ,red to 12v and the white/blue one which remained you put it at the spot you want to measure.

 

Thanks suzuki. Much appreciated

[RULE]

Shame on you guys for buying that tool

 

I am working on a open source device for read some voltage imput with a good accuracy and k-probe temp.

 

[Samsarulz]

Hi guys.

 

Some time ago bought these Voltmeters ( http://www.ebay.com/itm/310862159064?var=610236090264&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 ) from Ebay. Finally, received them yesterday.

 

Have been testing them on a Sapphire HD5770 Vapor-X, but only got "1V" readings, no fluctuation from there (static 1V). On testing points the DMM shows 1.28V.

 

 

Have I connected something wrong? Tested more that 1 voltmeter and the result is the same

 

Black (Ground)

Red (12V)

White (Measurement)

 

Thanks for reading .

[I.nfraR.ed]

No, throw these in the trash. They have 1% accuracy, which means 1 digit after the decimal sign.

You have a potentiometer on the back side to adjust the reading according to DMM, but from 1.16 to 1.25 it will show 1.2, from 1.26 to 1.35 it will show 1.3 and so on.

 

I got fooled from a seller's picture and description, but fortunately got a refund afterwards, because the info was wrong. They have corrected it since then.

Look for 0.1% accuracy or better.

 

Otherwise you can connect red line to any 3 to 28V source.

Edited August 16, 2014 by I.nfraR.ed

[Samsarulz]

No, throw these in the trash. They have 1% accuracy, which means 1 digit after the decimal sign.

You have a potentiometer on the back side to adjust the reading according to DMM, but from 1.16 to 1.25 it will show 1.2, from 1.26 to 1.35 it will show 1.3 and so on.

 

I got fooled from a seller's picture and description, but fortunately got a refund afterwards, because the info was wrong. They have corrected it since then.

Look for 0.01% accuracy or better.

 

Is possible for you to share the link of those voltmods? Really is a shame .

 

Thanks

[I.nfraR.ed]

I think it was this one: http://www.ebay.co.uk/itm/201085740430

 

Problem for me was that many sellers don't send to Bulgaria, so I had to buy the cheapest that had shipping to my country.

Let me check the accuracy...

[I.nfraR.ed]

Here it is:

 

5V of a molex connector. Not easy to test something else at the moment, but they are good enough.