Hi, I'm a newbie and wanting some advaice. I just purchased a multi-meter and was wondering when I check the charge or voltage of a 1.5 battery, do I place the switch selector to DCV on 2000m or do I place it on 200m? I am confused as to what is the correct choice and proper voltage selection. I know that for a 9 volt battery I place the selector on DCV 20 and I correct?
voltage question
Jun 20, 2008
10 Replies
The voltage you're selecting needs to be bigger than the one you're trying to measure to prevent over range, and as small as you can get away with to encourage accuracy.
So 2000mV (2V) would be appropriate for a 1.5V battery, but 200mV would not give you a reading.
You could figure this out just by playing with the thing, you know.
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
Starman wrote:
There was someone else with a similar problem earlier: news: snipped-for-privacy@4ax.com
Scroll way down on this page for the basics:
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. . ...and in this hierarchy we prefer old-school posting (trim and bottom-post):
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*-*-*-messes-up-the-order-*-*-*-*-*-*+RFC1855+removing-anything-*-*-*-*-*-*-not-relevant-to-the-point-you-are-making+top.posting+annoying+qq+*-importance-*&fwc=2
"Milli" means one thousandth. There are 1000mV per V.
Bob
== NOTE: I automatically delete all Google Group posts due to uncontrolled
SPAM ==
--- Crosspost, don't multipost.
That way, anyone can respond to your post from any NG they see it on and the replies will automatically be posted to all of the groups you crossposted to originally.
That saves folks like me, who responded to your post on alt.electronics, from having to post it again here or wherever else you multiposted it to.
JF
Unless you\'re talking about an integrator of some sort, milliseconds
doesn\'t equal volts.
And bottom post, please.
JF
JF
Not barking at you John, but for a newbie he may not be familiar with the concept and indeed where appropiate and inapproriate.
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Also in the other context see
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Bottom and inline replying are preferred on Usenet.
Graham
try this powerpoint presentation:
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or
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It helps a lot if you are familiar with scientific notation, as well. Engineering notation builds upon that understanding:
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Jon
(Starman) wrote: Hi, I'm a newbie and wanting some advice. I just purchased a multi-meter and was wondering when I check the charge or voltage of a 1.5 battery, do I place the switch selector to DCV on 2000m or do I place it on 200m? I am confused as to what is the correct choice and proper voltage selection. I know that for a 9 volt battery I place the selector on DCV 20 and I correct?
------------------------ I posted a thorough answer from an access point at KB Electronics but a robot ate it up :(Can you tell us what brand & model your meter is? I can't believe you're asking this, but I'm pissed my reply was vanquished - Other than the pseudo name I use ther at KB., it was well detailed and very helpful.
Roy Q.T. ~ US/NCU ~ E.E. Technician [have tools, will travel]
Yeah, but you could go blind. :-)
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