Patent ID: 8421639

Claim:
A meter for monitoring electric current in a conductor, said meter comprising: (a) a timer to transmit a delay signal indicating elapsing of a delay interval following initiation of a flow of current in said conductor; (b) a first alarm responsive to detection of a first alarm current having a magnitude less than a first lower limit current, said first alarm responsive to detection of said first alarm current only after transmission of said delay signal; (c) a second alarm responsive to detection of a second alarm current having a magnitude less than a second lower limit current and greater than said first lower limit current, said second alarm responsive to detection of said second alarm current only after transmission of said delay signal; (d) a third alarm responsive to detection of a third alarm current having a magnitude greater than a first upper limit current, said third alarm responsive to detection of said third alarm current only after transmission of said delay signal; and (e) a fourth alarm responsive to detection of a fourth alarm current having a magnitude greater than a second upper limit current and less than said first upper limit current, said fourth alarm responsive to detection of said fourth alarm current only after transmission of said delay signal.