level switch function

A float switch is a type of contact liquid level sensor that uses a float to operate a switch. Float switches are commonly used to control 

A level switch is a sensor that detects the presence of liquids, powder, or granulated materials at a specific location. (It is also referred to as level sensor) For example, when a tank is supplied with liquid, it overflow.In order to prevent overflows, a level switch is installed near the top of the tank.

Designing a Safety Function Using the Level Switch Each subsystem must be checked to assure compliance with minimum Hardware Fault Tolerance (HFT) requirements. When using the level switch in a redundant configuration, a common cause factor of at least 5% should be included in the safety integrity calculations.

The level switches, also known as level sensors, are instruments that work with an electric contact (reed switch) and a magnetic float.

Level Switch – A device that senses a change in process level then actuates a switching mechanism or relay when a pre-determined level set point is reached.

By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply. The contacts of the level switch are 

Level switches are used to detect liquid or powder levels, or interfaces between liquids. These level measurements are indicated via an electrical switching 

The working principle of a level switch is easy to understand because it works like any alarm switch that turns on/off when the level of fluid 

Ensure that the green power LED L3 is on. Set DIP switches S1 to S4 to OFF. 3. Set DIP switch S5 to ON (set-up mode). Turn the delay potentiometer P1 fully counter-clockwise. Adjust the material level of the process so that the sensor is covered by the material with the lowest relative dielectric constant.

The LTU-2000 Tuning Fork Sensors are point level switches that are designed to detect low or high levels of liquids and is based on the vibrating tuning fork 

1 Answer. Since you linked MSDN's explanation, you know that /Gy ensures that all functions are packaged in their own COMDAT. The main advantage of this is that if you have identical functions the linker can collapse them all down into one actual piece of code ("COMDAT folding"). This can have very large impacts when you have many identical