Tilt Switch
A tilt switch is an affordable, reliable high-level indicator that is easy to install and requires no routine maintenance. A hanging tilt switch is installed by suspending it from a flexible cable over a control point. Its principle of operation is quite simple–as material rises below the switch, it will tilt and activate a microswitch when the tilt reaches 15 degrees. Tilt switches are routinely used in bins or silos or over a conveyor belt or open pit. A hanging tilt switch can also be used for plugged chute detection.
Alternatively, a fixed-mount tilt switch mounts from the outside on the top of a vessel though a process connection. It operates by utilizing an angular motion transferred into linear motion to activate an electrical microswitch that can be used for a direct input to a control system or activate an external alarm. A fixed mount tilt switch can be custom-made in lengths from one to eight feet, depending on the distance from the top of the bin an alert should be activated. Newer, patented models are available tin a mercury-free design for applications that prohibit the presence of the substance in their operations.
Making the Right Choice
When it comes to point level controls there is a robust selection of technologies at affordable prices starting at a few hundred dollars up to about a thousand dollars. Point level measurement is one critical piece in the level measurement puzzle that, when assembled correctly, will give you a clear picture of your inventory.
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