A redundant level measuring system comprises comprising a chamber for fluidic coupling to a process vessel whereby material level in the vessel equalizes with material level in the chamber. A float including a magnet in the chamber interior space rises and falls with material level in the chamber. The float comprises an inner cylindrical wall defining an elongate through opening. A magnet actuated visual indicator is mounted to the chamber for indicating level of the magnet in the chamber. A level measurement instrument includes a measurement circuit and a coaxial probe having an inner rod and a coaxial outer tube. The probe defines a transmission line and the coaxial outer tube has a through opening so that material level in the chamber equalizes with material level in the coaxial outer tube. The instrument is mounted atop the chamber with the probe directed downwardly to the chamber interior space and extending through the float through opening. The measurement circuit generates and receives a frequency signal on the transmission line, the measurement circuit measuring level of the material in the coaxial outer tube.

A method for detecting a phase separation of a waterborne or solvent-borne or solvent-free coating composition includes providing the coating composition in a receptacle; providing a measurement instrument for receiving the receptacle, the measurement instrument including a measurement probe; controlling the measurement instrument to a) displace the measurement probe through the coating composition along a predefined measurement path with a predefined speed profile, the predefined measurement path extending along a length axis of the receptacle, b) acquire a force-displacement profile by measuring a force exercised on the measurement probe while the probe is being displaced along the predefined measurement path with the predefined speed profile; processing the force-displacement profile for detecting at least one phase separation of the coating composition; and outputting a detection result.

The invention discloses a probe for detecting changes of a medium in a container, comprising: a process connection for connecting the probe to the container, wherein the process connection is part of a housing, especially, an integral part of a housing; the housing comprising at least one microwave chip for generating microwaves, which chip is connected to at least one antenna, wherein the antenna transmits and receives the microwaves in the direction of the medium; an interface for connecting the probe to a higher-level unit; and a data processing unit which is designed to receive data, especially, measurement data, from the higher-level unit via the interface and to transmit data to the higher-level unit, to activate the microwave chip, and to process signals that are dependent on the received microwaves.

A device for indicating a fluid level, having a device housing (2), which has a viewing window (4), which provides a view of a transparent indicator body (6), which can be at least partially filled with the fluid via at least one port piece (24), the cavity (26) of which is reached through by a securing part (14), which has a fluid guide (22) and which can serves to secure the device housing (2) to a third component, such as a fluid storage tank, is characterized in that the port piece (24) comprises a support structure, at least consisting of individual ribs (34, 36) interconnecting plate-shaped wall parts (30, 32) of the port piece (24), and in that the support structure encompasses the cavity (26).

A liquid level detection device is disposed in a container having a viscous liquid. The liquid level detection device includes an installing seat, a connecting rod, a pivoting structure connecting the installing seat and one end of the connecting rod, and a floating element disposed at one end of the connecting rod opposite to the installing seat. Further, the liquid level detection device includes a protecting bladder disposed to correspond to the pivoting structure. The protecting bladder divides the liquid level detection device into a coated part and an exposed part. One end of the floating element opposite to the installing seat is the exposed part. The protecting bladder isolates the viscous liquid from contacting with the pivoting structure to prevent excessive viscous liquid from remaining on the pivoting structure and avoid the problem of misoperation of the liquid level detection device caused by the influence of the protecting bladder.

The present disclosure provides for an armored sight level gauge field assembly for placement between fittings to show liquid level, including an elongated cylindrical transparent sight tube shield and a sight tube extending through the sight tube shield. First and second receiver plates define passages for the sight tube to extend therethrough, each receiver plate also sealing the shield. A U-shaped guard is removably connected to each receiver plate and provides a structural protective enclosure, substantially enclosing the sight tube shield. First and second connector plates attach to each receiver plate, and each connector plate defines an opening to receive ends of the sight tube for fluid communication between the sight tube and the fittings, each connector plate comprising a nozzle extending therefrom, opposite said opening, in coaxial alignment with the sight tube. Each nozzle is positionable between and removable from the spaced apart fittings.

A mica water level gauge glass includes a steam tee fitting, a balance pipe, a water tee fitting, a steam connecting pipe, a water connecting pipe, a condensation tank, a longitudinal vertical gauge body, and a mica assembly. The gauge body includes a thermal compensation cavity, a steam-water cavity, an auxiliary heat confluence device, and a horizontal steam cavity. The exit points of the thermal compensation cavity arranged in the gauge body is lower than the point of the steam-water cavity exiting from the gauge body.

A dielectric-constant-insensitive fluid level sensor for directly inserting into a high dielectric constant fluid is disclosed. According to one embodiment, the fluid level sensor includes a first set of stacked series capacitors where each capacitor in the first set is formed by two coplanar electrodes and a dielectric space between the electrodes. Each stack of series capacitors in the first set includes at least one capacitor having a first molded carrier as the dielectric space in series with another capacitor having a first fluid cavity as the dielectric space. In this embodiment, the total capacitance of the first set of stacked series capacitors varies as a function of the level of the fluid within the first fluid cavity.

A remote monitoring system that controls fluid level in fuel storage tanks of mining trucks includes a device that measures fluid level in fuel storage tanks of mining trucks resistant to rapid filling that protects a sensor inside the device, including a protective metallic tube; a level sensor arranged inside the protective metallic tube; and an anchorage system connected to the protective metallic tube with the tank allowing fluid communication inside the tank with fluid inside the protective metallic tube; antennas; Web server; remote means; and a power source.

An analysis device, a cartridge, an analysis system and a method for preferably testing a biological sample. The analysis system has a sample sensor for monitoring the sample in a receiving cavity of the cartridge. The sample sensor preferably allows sedimentation of the sample to be measured or detected.