These Switches are the most versatile for level control and have advantages over float type switches in the control of agitated liquids paints-varnishes & heavy oil and foaming liquids. The Displacer weight is heavier than the liquid which is suspended by a spring. When the liquid rises the displacer looses the weight, this causes the spring to retract slightly to a new equilibrium position. This retracts of the spring interchanges the position of the Magnet provided at the top and actuates the switch. Upto three independent switch junctions are available in the single unit, with broad choice of operating sequences. These are flange mounted and are available with a choice of material of construction.

Level Switches: Guardians of Liquid and Bulk Material Levels

Level switches are essential components in various industrial processes and storage applications. They act as electronic or mechanical sentinels, monitoring the height of liquids or bulk solids in containers and triggering actions based on preset levels. Here's a breakdown of level switches, their types, and specifications to consider:

Function:

· Detect when a liquid or bulk material reaches a specific level within a tank, silo, or bin.

· Generate an electrical signal (on/off or analog) based on the detected level.

· This signal can be used to control pumps, valves, alarms, or other equipment to maintain desired fill levels, prevent overflows, or initiate refilling processes.

Types of Level Switches:

The choice of level switch depends on the type of material being monitored (liquid or solid) and the desired functionality. Here are some common types:

· Float Level Switches:

o A simple and reliable option for liquids.

o A buoyant float rises or falls with the liquid level, triggering a switch mechanism at preset high or low points.

· Displacer Level Switches:

o A displacer element suspended in the liquid moves due to buoyancy changes.

o This movement is detected by a magnetic or mechanical linkage, activating the switch at specific levels.

· Conductivity Level Switches:

o For conductive liquids.

o Electrodes at set points detect conductivity when submerged, indicating the liquid level reaching that point. (Not suitable for non-conductive liquids like oil)

· Ultrasonic Level Switches:

o Emit ultrasonic sound pulses and measure the time it takes for the echo to return.

o This time difference translates to the distance to the material surface, indicating the level. (Suitable for liquids, slurries, and some solids)

· Optical Level Switches:

o Use light beams to detect the presence or absence of material at a specific point.

o Can be suitable for clear liquids or opaque solids depending on the technology (e.g., photoelectric, light reflection).

· Radio Frequency (RF) Admittance Level Switches:

o Emit high-frequency radio waves to sense the presence or absence of material.

o Can be effective for liquids, slurries, and some solids with varying dielectric properties.

· Vibrating Fork Level Switches:

o A tuning fork vibrates at a specific frequency.

o When the material contacts the fork and dampens the vibration, the switch detects the change and indicates a high level. (Suitable for liquids, slurries, and some solids)

· Magnetostrictive Level Switches:

o Utilize a sound wave traveling through a rod to measure the level.

o The presence of material affects the wave propagation, triggering the switch at specific points. (Suitable for liquids and some solids)

Specifications to Consider When Choosing a Level Switch:

· Material Type: Liquid or bulk solid (and its properties like viscosity, abrasiveness)?

· Level Detection Points: High level, low level, or multiple points?

· Operating Temperature and Pressure: Compatible with the tank environment?

· Wetted Materials: Materials the switch will be in contact with (compatibility)?

· Electrical Rating: Output voltage and current requirements for connected equipment.

· Enclosure Rating: NEMA rating for protection against dust, moisture, or hazardous locations.

· Desired Features: Alarm contacts, control relays, data logging capabilities?

Additional Considerations:

· Cost: Level switches range in price depending on complexity and features.

· Ease of Installation and Maintenance: Consider accessibility and cleaning requirements.

· Approvals: Ensure the switch meets any regulatory requirements for your application.

vibrating point level switch for high, low or demand levels of dry bulk solids in bins, silos or hoppers. This compact switch can be top, side or angle mounted. The vibrating fork design ensures the tines are kept clean, and the unique fork and crystal assembly design eliminates false high level readings even if tines become damaged. Used for liquidsolid interface detects settled solids within liquids or solids in confined spaces like feed pipes. It is designed to ignore liquids in order to detect the interface between a solid and a liquid. This has an optional 4-20 mA output for monitoring buildup on the fork in sticky applications, to determine the need for preventative maintenance. Key Specifications High resistance to mechanical forces, and strong vibration resistance to high bulk material loads Suitable for low density material: standard version, liquidsolid interface version, and low density option Low frequency, low energy operation High or low level alarm in solids with simple failsafe highlow selection

Conductivity level switchesTransmitters are based on the principle of measuring level through the electrical properties of the process material. As the name suggests, the conductivity based level switches and sensors sense the level of water or other conductive liquids that have free ions. These switchesTransmitters are successfully used in processing plants for conductive liquids , and serve the following applications: To avoid overflow For maintaining a constant level to avoid material wastage For switching off pumps when running dry and indicating an empty tank to avoid wear and tear and production stoppage

These Switches are the most versatile for level control and have advantages over float type switches in the control of agitated liquids paints-varnishes & heavy oil and foaming liquids. The Displacer weight is heavier than the liquid which is suspended by a spring. When the liquid rises the displacer looses the weight, this causes the spring to retract slightly to a new equilibrium position. This retracts of the spring interchanges the position of the Magnet provided at the top and actuates the switch. Upto three independent switch junctions are available in the single unit, with broad choice of operating sequences. These are flange mounted and are available with a choice of material of construction.

Level Switches: Guardians of Liquid and Bulk Material Levels

Level switches are essential components in various industrial processes and storage applications. They act as electronic or mechanical sentinels, monitoring the height of liquids or bulk solids in containers and triggering actions based on preset levels. Here's a breakdown of level switches, their types, and specifications to consider:

Function:

· Detect when a liquid or bulk material reaches a specific level within a tank, silo, or bin.

· Generate an electrical signal (on/off or analog) based on the detected level.

· This signal can be used to control pumps, valves, alarms, or other equipment to maintain desired fill levels, prevent overflows, or initiate refilling processes.

Types of Level Switches:

The choice of level switch depends on the type of material being monitored (liquid or solid) and the desired functionality. Here are some common types:

· Float Level Switches:

o A simple and reliable option for liquids.

o A buoyant float rises or falls with the liquid level, triggering a switch mechanism at preset high or low points.

· Displacer Level Switches:

o A displacer element suspended in the liquid moves due to buoyancy changes.

o This movement is detected by a magnetic or mechanical linkage, activating the switch at specific levels.

· Conductivity Level Switches:

o For conductive liquids.

o Electrodes at set points detect conductivity when submerged, indicating the liquid level reaching that point. (Not suitable for non-conductive liquids like oil)

· Ultrasonic Level Switches:

o Emit ultrasonic sound pulses and measure the time it takes for the echo to return.

o This time difference translates to the distance to the material surface, indicating the level. (Suitable for liquids, slurries, and some solids)

· Optical Level Switches:

o Use light beams to detect the presence or absence of material at a specific point.

o Can be suitable for clear liquids or opaque solids depending on the technology (e.g., photoelectric, light reflection).

· Radio Frequency (RF) Admittance Level Switches:

o Emit high-frequency radio waves to sense the presence or absence of material.

o Can be effective for liquids, slurries, and some solids with varying dielectric properties.

· Vibrating Fork Level Switches:

o A tuning fork vibrates at a specific frequency.

o When the material contacts the fork and dampens the vibration, the switch detects the change and indicates a high level. (Suitable for liquids, slurries, and some solids)

· Magnetostrictive Level Switches:

o Utilize a sound wave traveling through a rod to measure the level.

o The presence of material affects the wave propagation, triggering the switch at specific points. (Suitable for liquids and some solids)

Specifications to Consider When Choosing a Level Switch:

· Material Type: Liquid or bulk solid (and its properties like viscosity, abrasiveness)?

· Level Detection Points: High level, low level, or multiple points?

· Operating Temperature and Pressure: Compatible with the tank environment?

· Wetted Materials: Materials the switch will be in contact with (compatibility)?

· Electrical Rating: Output voltage and current requirements for connected equipment.

· Enclosure Rating: NEMA rating for protection against dust, moisture, or hazardous locations.

· Desired Features: Alarm contacts, control relays, data logging capabilities?

Additional Considerations:

· Cost: Level switches range in price depending on complexity and features.

· Ease of Installation and Maintenance: Consider accessibility and cleaning requirements.

· Approvals: Ensure the switch meets any regulatory requirements for your application.

vibrating point level switch for high, low or demand levels of dry bulk solids in bins, silos or hoppers. This compact switch can be top, side or angle mounted. The vibrating fork design ensures the tines are kept clean, and the unique fork and crystal assembly design eliminates false high level readings even if tines become damaged. Used for liquidsolid interface detects settled solids within liquids or solids in confined spaces like feed pipes. It is designed to ignore liquids in order to detect the interface between a solid and a liquid. This has an optional 4-20 mA output for monitoring buildup on the fork in sticky applications, to determine the need for preventative maintenance. Key Specifications High resistance to mechanical forces, and strong vibration resistance to high bulk material loads Suitable for low density material: standard version, liquidsolid interface version, and low density option Low frequency, low energy operation High or low level alarm in solids with simple failsafe highlow selection

Conductivity level switchesTransmitters are based on the principle of measuring level through the electrical properties of the process material. As the name suggests, the conductivity based level switches and sensors sense the level of water or other conductive liquids that have free ions. These switchesTransmitters are successfully used in processing plants for conductive liquids , and serve the following applications: To avoid overflow For maintaining a constant level to avoid material wastage For switching off pumps when running dry and indicating an empty tank to avoid wear and tear and production stoppage