Large Chamber Sight Level Indicators – Model RLC, TLC

Used for turbulent surfaces or transparent liquids these sight level indicators (glass level gages) can improve accuracy in determining liquid levels. In addition to simulating the function of a stilling well and providing a column four times larger than a standard indicators, large chamber indicators can provide end connections up to 2” NPTF allowing the use of other instrumentation. Units are used in direct reading liquid level measurement for high pressure tanks applications in the petroleum, chemical, natural gas and general process industries. These gages are not recommended for steam/water applications.

There are 2 large chamber indicator models: the Model RLC- Reflex Large Chamber and Model TLC-Transparent Large Chamber. Reflex gages (RLC) have a single vision slot in which light can enter the chamber. Above the liquid level, light is reflected and usually appears silvery. Area where liquid level is filled becomes transparent or dark/opaque depending on the medium being observed. Transparent gages (TLC) have a vision slot on both sides of the chamber. Light enters on the opposite side of the observer so both the level of a liquid and characteristics can be seen. For observation in dark environments, illuminators are available for use with transparent gages.

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