# US 9,752,916 B2 · Probe for monitoring the surface level of a fluid in a vessel and a method of installing the probe in the vessel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,916 B2 - Document ID: US9752916B2 - Status: Granted - Kind: B2 - Application number: 14/911,890 - Filed: 2014-08-13 - Published: 2016-07-14 - Granted: 2017-09-05 - Earliest claimed: 2013-08-28 - Assignees: Sulzer Management AG - Applicants: Sulzer Management AG - Inventors: Jussi Heinonen; Pasi Kvick; Anssi Lehtonen; Seppo Nyman; Reijo Vesala; Vesa Vikman - Web page: https://patentgrep.com/patent/US9752916B2 ## CPC - G01F 23/242: {Mounting arrangements for electrodes} - G01F 23/14: by measurement of pressure - G01F 23/24: by measuring variations of resistance of resistors due to contact with conductor fluid - G01F 23/248: {Constructional details; Mounting of probes} - G01F 23/26: by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields - G01F 23/268: {mounting arrangements of probes} - G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME ## Abstract A method of installing a probe for monitoring a surface level of a fluid in a vessel inside the vessel from outside the vessel, the method includes providing a vessel side wall with a first opening, providing the vessel side wall with a second opening, passing the second end of the probe, a second device for fastening the probe and a detection unit of the probe through the first opening and inside the vessel, orienting the second end of the probe towards the second opening, attaching the second end of the probe to the side wall of the vessel at the second opening, and fastening the first end of the probe to the side wall of the vessel at the first opening. ## Claims ### Claim 1 A method of installing a probe inside a vessel for monitoring a surface level of a fluid in the vessel from outside the vessel, the vessel having a side wall and the probe having a first end, a second end, a detection unit therebetween, at least a first fastening device and at least a second fastening device for fastening the probe to the side wall of the vessel and at least one device for transmitting surface level-related information out of the vessel, the method comprising the steps of: providing the vessel side wall with a first opening; providing the vessel side wall with a second opening through the side wall; passing the second end of the probe, the second fastening device for fastening the probe and the detection unit of the probe through the first opening and inside the vessel; orienting the second end of the probe towards the second opening; attaching the second end of the probe to the side wall of the vessel at the second opening; and fastening the first end of the probe to the side wall of the vessel at the first opening. ### Claim 2 (depends on 1) The vessel employed in the method of claim 1, wherein the detection unit has a plurality of sensors along a length thereof, and a transmitting device, when in use, configured to transmit surface level-related information from the sensors to a control device, the probe including the first device and at least the second device configured to fasten the probe, when in use, to the side wall of the vessel, the transmitting device being arranged in connection with at least one of the first fastening device and the second fastening device of the probe inside the vessel. ### Claim 3 (depends on 2) The vessel as recited in claim 2, wherein the second fastening device comprises at least one bolt or at least one threaded hole. ### Claim 4 (depends on 2) The vessel as recited in claim 2, wherein the first and the second fastening devices are arranged along the length of the probe at a distance from one another or at ends of the probe. ### Claim 5 (depends on 2) The vessel as recited in claim 2, wherein the first fastening device includes a flange arranged in connection with the probe. ### Claim 6 (depends on 2) The vessel as recited in claim 2, wherein the probe includes a first end member attached to the detection unit, the first fastening device being arranged in connection with the first end member. ### Claim 7 (depends on 6) The vessel as recited in claim 6, wherein the flange is arranged on the first end member at a distance from the detection unit. ### Claim 8 (depends on 2) The vessel as recited in claim 2, wherein the detection unit is formed from a plurality of longitudinal sections, the sections being coupled to one another by a hinge. ### Claim 9 (depends on 8) The vessel as recited in claim 8, further comprising a third fastening device disposed along a length of the detection unit. ### Claim 10 (depends on 2) The vessel as recited in claim 2, wherein the probe includes a device configured to seal, when in use, the probe in relation to the side wall of the vessel along the length of the probe. ### Claim 11 (depends on 2) The vessel as recited in claim 2, wherein the transmitting device is one of a continuous wiring, a wiring including a socket-plug connection and a wireless transmitter for transmitting the surface level-related information from the sensors to the control device. ### Claim 12 (depends on 2) The vessel as recited in claim 2, wherein the probe is configured to operate based on one of resistance measurement, capacitance measurement, pressure measurement, electrical impedance tomography, electrical resistance tomography and electrical capacitance tomography. ### Claim 13 (depends on 2) The vessel as recited in claim 2, wherein the second fastening device comprises one threaded sleeve alone, or in connection with a second flange. ### Claim 14 (depends on 1) The method as recited in claim 1, wherein the providing the vessel side wall with the first opening includes dimensioning the first opening to enable entrance of the second fastening device of the probe inside the vessel. ### Claim 15 (depends on 1) The method as recited in claim 1, wherein the providing the vessel side wall with the second opening includes dimensioning the second opening to receive the second fastening device and for fastening the probe to the side wall of the vessel at the second opening. ### Claim 16 (depends on 1) The method as recited in claim 1, wherein after the providing the vessel side wall with the first opening, providing the side wall of the vessel around the first opening with a first support plate having an opening. ### Claim 17 (depends on 1) The method as recited in claim 1, wherein after the providing the vessel side wall with the second opening, providing the side wall of the vessel around the second opening with a second support plate having an opening. ### Claim 18 (depends on 1) The method as recited in claim 1, wherein the providing the vessel side wall with the first opening includes extending the first opening in vertical direction to enable taking of the probe in an inclined orientation inside the vessel.