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count-up device

Discussion in 'Electronic Basics' started by c, Jan 5, 2004.

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  1. c

    c Guest

    I need a simple & inexpensive timer that will log how many hrs/min/sec
    a 120vac device runs in a month. hrs/minutes only may be acceptable.
    Is there a device available or a simple schematic?
  2. CFoley1064

    CFoley1064 Guest

    I need a simple & inexpensive timer that will log how many hrs/min/sec
    The standard miniature LCD totalizing timers have internal batteries (3V
    lithium usually, that last about 5 to 7 years), voltage or contact input, and
    remote contact/switch reset for your once a month reset. As one example, the
    Red Lion 3T320 counts in 0.01 hr. increments up to 9999.99 hrs, and is
    available from DigiKey as their P/N RLC3TR-32-ND for $48.00 USD.

    Red Lion in particular is a good source because they will work with OEMs on
    small quantity special orders if there's any sales potential there. Their
    sales apps people are very helpful on getting you just the display, or whatever
    associated electronics or interface circuitry you need (and I don't work for

    These work fine, and are an incredible improvement over the old mechanical
    totalizing timers, which no one can seem to make reliably any more, and cost
    about a third as much.

    Good luck
  3. Steve

    Steve Guest

    There are equipment hour meters for about $20 that can be wired into the
    equipment you want to monitor..

    Very simple and easy to install..

    They are available in AC or DC..

    Surplus ones are available from The Surplus Center meter

    Right now, it appears that they only have 12 vdc meters but you could check
    back periodically and see if they have 120 vdc meters.

    Or call them, they are always helpful..

  4. Norm

    Norm Guest

    I am not working at the present time if you'd like I can do the design for

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