Today's Message Index:
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0. 05:13 PM - [Please Read] - Last Official Day of List Fund Raiser! (Matt Dralle)
1. 03:46 PM - Testing of Overvoltage Module (H. Ivan Haecker)
2. 05:28 PM - Re: Testing of Overvoltage Module (Charlie England)
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| Subject: | [Please Read] - Last Official Day of List Fund Raiser! |
Dear Listers,
It's November 30th and that always means a couple of things. Its my birthday again
- 52, so don't remind me! :-) But it also means that it's that last official
day of the Matronics Email List Fund Raiser! If you been thinking about
picking up one of those really nice incentive gifts now is the time to jump on
it!!
If you've been meaning to make a Contribution this month but have been putting
it off for some reason, NOW is the time!
I will be posting the List of Contributors in a few days, so you'll probably want
to be known as a person that supported the Lists!
I want to thank everyone that has so generously made a Contribution this year in
support of our Lists. It is your generosity that keeps this operation running
and I don't ever
forget it.
The List Contribution Web Site is fast and easy. Please support our habit by making
your Contribution right now:
http://www.matronics.com/contribution
Or, by dropping a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
USA
Thank you in advance!
Matt Dralle
Matronics Email List Administrator
Message 1
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| Subject: | Testing of Overvoltage Module |
I have a need to test my ov module. I found a link from the aeroelectric
connection detailing the method. Not having a variable dc power supply, I
have ordered one (Tekpower TP3005T). My question is what purpose is the
precision voltmeter shown in the link for the test. Doesn't the dc power
supply setting tell you what voltage you are supplying to the ov module?
Sorry if my question displays a lack of basic knowledge, but that's how I
learn.
Ivan Haecker
Message 2
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| Subject: | Re: Testing of Overvoltage Module |
On 11/30/2015 5:44 PM, H. Ivan Haecker wrote:
> I have a need to test my ov module. I found a link from the
> aeroelectric connection detailing the method. Not having a variable dc
> power supply, I have ordered one (Tekpower TP3005T). My question is
> what purpose is the precision voltmeter shown in the link for the
> test. Doesn't the dc power supply setting tell you what voltage you
> are supplying to the ov module? Sorry if my question displays a lack
> of basic knowledge, but that's how I learn.
>
> Ivan Haecker
Answer is, it depends. :-) Lots of 'old school' variable supplies had
analog meters that, even if inherently accurate, didn't have enough
resolution to read less than ~1/2-1 volt of change; not good enough when
you're trying to set something to the nearest tenth of a volt. Even if
the PS has a built in digital meter, it'd be a good idea to verify it's
accuracy with a known good digital meter before trying to set up
something like the OV module.
Charlie
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