Maker Pro
Maker Pro

ac volt meter- read dc voltage?

i have an ac volt meter (0-12v). i wish to use it to monitor pc psu
voltage across an led. I have tried it for 30s and it works, showing a
steady, 'non shacky' 4v reading. So, is using a ac volt meter for dc
volt reading recommmended ?.....
 
J

JANA

Jan 1, 1970
0
Why not get a DC volt meter, and have an accurate reading?

A dedicated AC volt meter was not designed to read DC, and visa-versa.

--

JANA
_____


i have an ac volt meter (0-12v). i wish to use it to monitor pc psu
voltage across an led. I have tried it for 30s and it works, showing a
steady, 'non shacky' 4v reading. So, is using a ac volt meter for dc
volt reading recommmended ?.....
 
C

CWatters

Jan 1, 1970
0
i have an ac volt meter (0-12v). i wish to use it to monitor pc psu
voltage across an led. I have tried it for 30s and it works, showing a
steady, 'non shacky' 4v reading. So, is using a ac volt meter for dc
volt reading recommmended ?.....

Nope. What does it say when you hook up a 9V battery?
 
R

redbelly

Jan 1, 1970
0
i have an ac volt meter (0-12v). i wish to use it to monitor pc psu
voltage across an led. I have tried it for 30s and it works, showing a
steady, 'non shacky' 4v reading. So, is using a ac volt meter for dc
volt reading recommmended ?.....

It sounds like the LED is being pulsed or modulated, at a frequency
fast enough to appear continuous ("dc-like") to the naked eye.

The ac meter is NOT reading a dc (or "average") voltage, but rather is
a measure of the modulating amplitude, or of the pulse amplitude & duty
cycle.

Mark
 
Top