Timer required

Discussion in 'The Projects Forum' started by wajid386, Jul 14, 2011.

  1. wajid386

    Thread Starter New Member

    Nov 23, 2010
    i have a generator. i want its running time.
    bassically i need a timer which run the time when generator starts and stop the time when generator stop. but the time of timer did not go to zero. it remain at that time when generator stop.
  2. SgtWookie


    Jul 17, 2007
    It sounds to me like what you need is a device called an "hour meter".
    Here is a link to one type of hour meter: http://www.datcon.com/products/2hdhrmtrs.htm
    Here is a link to many types in the Grainger online catalog:

    Basically, the hour meter is connected to the device/motor so that it runs only when the device/motor is running. The hour meter never re-sets to zero; it only counts up. They are available in electro-mechanical and wholly electronic versions.

    Since these are available from so many different vendors in a wide variety of configurations, you would be much better off to simply purchase a COTS (commercial off-the-shelf) unit instead of trying to build one yourself.