Apparatus for determining and/or monitoring a physical or chemical quantity
First Claim
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1. An apparatus for determining and/or monitoring a physical or chemical variable in a process, comprising:
- a remote control station;
data connection;
at least one field device with a sensor for determining at least one physical process variable, said at least one field device exchanges data with said remote control station via said data connection; and
at least one fuel cell arranged at a remote location from said at least one field device and electrically connected with said at least one field device via said data connection,wherein;
said at least one fuel cell at least partially covers the energy requirement of said at least one field device; and
replenishment of said at least one fuel cell occurs at said remote location.
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Abstract
An apparatus for determining and/or monitoring a physical or chemical quantity during a process. The apparatus comprises at least one field device which exchanges data with a remote monitoring station by means of a data connection. The apparatus is provided with at least one fuel cell which is electrically connected to the field device, but arranged at a distance from the field device, and at least partially covers the energy demand of the field device.
3 Citations
23 Claims
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1. An apparatus for determining and/or monitoring a physical or chemical variable in a process, comprising:
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a remote control station; data connection; at least one field device with a sensor for determining at least one physical process variable, said at least one field device exchanges data with said remote control station via said data connection; and at least one fuel cell arranged at a remote location from said at least one field device and electrically connected with said at least one field device via said data connection, wherein; said at least one fuel cell at least partially covers the energy requirement of said at least one field device; and replenishment of said at least one fuel cell occurs at said remote location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification