Sensor device providing indication of device health
First Claim
1. A sensor device including:
- a sensor for detecting a selected parameter at a site; and
a controller for receiving indications from said sensor of said selected parameter, said controller generating one of a steady-state signal and a non-steady state signal when said parameter is within a first range, the other of said signals when said parameter is in a second range, and a null output in response to a failure condition at said device.
1 Assignment
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Accused Products
Abstract
A sensor device is provided for sensing a selected parameter such as pressure or temperature at a selected site, which is typically a remote site, and for generating outputs, normally to a control site, which outputs are either selected steady state or non-steady state outputs, the non-steady state outputs being indicative of the parameter being within a normal or acceptable range and/or the parameter being within an unacceptable or alarm range. The steady state outputs can be indicative either of the parameter being within a normal range or of a device failure. A particular steady state output, for example a null output, may be indicative of all failure conditions or different steady state outputs may be utilized to indicate different failure conditions.
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Citations
22 Claims
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1. A sensor device including:
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a sensor for detecting a selected parameter at a site; and
a controller for receiving indications from said sensor of said selected parameter, said controller generating one of a steady-state signal and a non-steady state signal when said parameter is within a first range, the other of said signals when said parameter is in a second range, and a null output in response to a failure condition at said device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sensor device including:
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a sensor for detecting a selected parameter at a site, said parameter having at least one normal range, and at least one alarm range, and the device having at least one failure condition; and
a controller for receiving indications from said sensor of said selected parameter, said controller generating a selected steady state signal when said parameter is within a selected one of said ranges, generating one of a second non-steady state signal and a second steady state signal when the parameter is in a second of said ranges, and generating a selected steady state signal in response to a selected failure condition at the device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification