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Analysis system

  • US 7,711,519 B2
  • Filed: 11/15/2007
  • Issued: 05/04/2010
  • Est. Priority Date: 01/18/2002
  • Status: Expired due to Fees
First Claim
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1. An apparatus for analysing the condition of a machine having a rotating shaft, comprising:

  • at least one input for receiving measurement data from a sensor for surveying a measuring point of the machine, said measurement data being dependent on rotation of said shaft;

    data processing means for processing condition data dependent on said measurement data, said data processing means comprising means for performing a plurality of condition monitoring functions (F1, F2,Fn), wherein at least one of said plurality of condition monitoring functions (F1, F2, Fn) is a restricted function having a disabled state and an enabled state, said disabled state prohibiting complete execution of said condition monitoring function, and said enabled state allowing execution;

    wherein the apparatus is arranged to allow a limited amount of use of the at least one restricted condition monitoring function; and

    wherein at least one of said plurality of condition monitoring functions (F1, F2, Fn) is an unrestricted function;

    wherein the apparatus further comprises;

    a clock functionality for providing date information; and

    a state control functionality for changing the state of an individual selected condition monitoring function between the disabled state and the enabled state;

    means for receiving a key comprising a code for enabling a selected restricted condition monitoring function from a first date until a second date;

    a verification procedure for ascertaining whether a received key is valid or invalid;

    wherein said state control functionality cooperates with said clock functionality to change the state of the restricted condition monitoring function associated with the received key from the disabled state to the enabled state at said first date in response to reception of said key if the verification procedure indicates that the received key is valid so as to allow said limited amount of use of the at least one restricted condition monitoring function; and

    wherein said state control functionality cooperates with said clock functionality to change the state of the enabled restricted condition monitoring function associated with the received key from the enabled state to the disabled state to at said second date so as to end said limited use of the at least one restricted condition monitoring function.

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