PROCESS OR STORAGE TANK WITH DUAL MEASUREMENT MEANS AND METHOD OF OPERATING THEREOF

The present disclosure relates to a process or storage tank comprising a liquid, slurry, gas or mixture thereof; a conduit in fluid communication with the tank or a conduit inside the tank; and a first means (9) for measuring a first process or storage condition selected from the group consisting of temperature, pressure, vibration, viscosity, water content, solid content, solid size, solid shape, solid roughness, and liquid level, wherein the conduit or the means for measuring is configured for removably integrating a second means (4) for measuring a second process or storage condition selected from the same group as above, while process or storage is proceeding inside the tank and while the first means for measuring is inside the process or storage tank. The present disclosure further relates to a respective method and to a method for revamping a process or storage tank accordingly.