Capacitance Meter

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  • frankr

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 6715
    Topics: 51
    #11947
    quote Chris_P:

    Rather than me type something out, have a read here. F_R above would be the best to guide you, he pretty much wrote this.

    http://www.pochefamily.org/outboard/Con … sting.html

    Here is for coils/points.

    http://www.pochefamily.org/outboard/Coils.htm

    Hmmm, the first link certainly does look familiar. But I didn’t do the second one, although it is very well done. However, I believe there is a probably unintentional error in his points testing method. When testing for closed points continuity, use the lowest available range on your meter. The meter shown in the article has an available X1 scale….very good. But he is using the highest scale…not good. You are looking for a resistance of less than one Ohm with the points closed. El Cheapo meters usually don’t have a X1 scale, so they can’t tell the difference between one Ohm and say, 10 Ohms.

    On the other hand, he is correct in using the high scale when testing for points’ shorting to ground. Should show infinity, which it does.


    Buccaneer

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 7493
    Topics: 1072
    #11953

    Thanks for the write-ups and links. I printed out the condenser testing
    page to experiment in the garage on a handful of condensers.
    Also, thanks for your input on capacitance testers.
    TG

    Prepare to be boarded!


    jim-moffatt

    US Member - 2 Years
    Replies: 225
    Topics: 33
    #11963

    Here is my recommendation for a general purpose meter that measure capacitance.

    http://www.mcmelectronics.com/product/T … 0-/72-7720

    its $29.99

    I have a similar meter from MCM and it works very well.
    I measures up to 200 meg ohms so capacitor leakage can be tested.
    It also measures capacitance value.
    For point cleaning it measures down to 0.1 ohm so you can test points with it.


    oltimer


    Replies: 93
    Topics: 1
    #11970

    I use a Model DCM-200 Capacitance Meter. As per Mumbles unit, it will give the value on the one being tested. I use my Merc-o-tronic to load them to see if they are working well. I paid around $80.00 2 years ago for the DCM-200. You can Google it to see what it looks like and does.


    Buccaneer

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 7493
    Topics: 1072
    #12001

    I’m looking at this one, similar to the DCM-200…….
    http://www.ebay.com/itm/360511141750?_t … EBIDX%3AIT
    Any reason not to get this one?

    Prepare to be boarded!


    westwind

    Canada Member - 1 Year (includes $3 online payment fee)
    Replies: 374
    Topics: 10
    #12008

    regarding measuring low resistance of points

    No two wire meter will do a good job measuring below 1 ohm. The leads themselves have too much resistance to get any kind of accurate number. You can tell if they are bad and have high resistance and improved with cleaning but how clean will be difficult to tell. An accurate meter for this purpose is a four wire meter determine the final cleaning of the contacts, we have an industrial one at work that is somewhere around $5,000, a bit pricey for the home hobbyist though. This one from china may be reasonable:

    http://www.ebay.ca/itm/NEW-VC480C-3-1-2 … 45fe07309e

    It also measures capacitance so might be a good choice vs some of the other meters that measure capacitance but are two wire ohm meters.


    RICHARD A. WHITE

    Lifetime Member
    Replies: 1840
    Topics: 140
    #12134

    If all you want to do is check values…You cant beat this price… I use MercOtronic to check for leakage, but if it has no part number I can use this, AND you get soldering experience!!!!

    https://www.sparkfun.com/products/9485

    http://www.richardsoutboardtools.com
    classicomctools@gmail.com


    Buccaneer

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 7493
    Topics: 1072
    #12143

    Looks like a fun kit, but I’d have to upgrade my 35 year old
    Craftsman soldering iron for something a little more delicate!

    Prepare to be boarded!


    RICHARD A. WHITE

    Lifetime Member
    Replies: 1840
    Topics: 140
    #12172

    I am a hack solder…er and I had no issues, worked well…

    http://www.richardsoutboardtools.com
    classicomctools@gmail.com

Viewing 9 posts - 11 through 19 (of 19 total)
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