Toggle Nav
Menu
Account
  • Compare Products
Search

Point Level Measurement 

Items 1-24 of 52

Set Descending Direction
Page
per page

Point Level Measurement

Level detectors detect media at a predefined position depending on the installation position.

Level detectors are mainly installed as full or empty detectors in the upper or lower part of a silo or container. This prevents the silo from overfilling or running empty. In combination with a level sensor, this results in a redundant system which additionally increases plant safety. If a certain fill level is of particular interest, the sensors can also be used as demand detectors.

There are different technologies for level detection, which have their advantages and disadvantages depending on the application. For the selection, numerous process conditions have to be considered, which the sensor technology has to cope with. In addition, the requirements for bulk solids sensors differ from those for liquid sensors. For this reason, UWT offers a broad portfolio of different technologies such as rotary paddle switches, vibration level switches and capacitive sensors. This allows us to individually address their requirements in order to always provide them with the best possible solution.

Typical challenges:

  • Media type (e.g. bulk, powder, liquid, paste, etc.)
  • Media properties (e.g. bulk density, conductivity, viscosity, etc.)
  • Input conditions (e.g. tank material, tank geometry, installation position, installations within the tank, etc.)
  • Process conditions (e.g. pressure, temperature, ambient conditions, explosion protection, hygiene requirements, etc.)

In addition to our point level detection sensors our product portfolio also includes a variety of continuous level measurement sensors which unlike limit level sensors can detect the exact level of a medium in real time. 

Point Level Measurement

Level detectors detect media at a predefined position depending on the installation position.

Level detectors are mainly installed as full or empty detectors in the upper or lower part of a silo or container. This prevents the silo from overfilling or running empty. In combination with a level sensor, this results in a redundant system which additionally increases plant safety. If a certain fill level is of particular interest, the sensors can also be used as demand detectors.

There are different technologies for level detection, which have their advantages and disadvantages depending on the application. For the selection, numerous process conditions have to be considered, which the sensor technology has to cope with. In addition, the requirements for bulk solids sensors differ from those for liquid sensors. For this reason, UWT offers a broad portfolio of different technologies such as rotary paddle switches, vibration level switches and capacitive sensors. This allows us to individually address their requirements in order to always provide them with the best possible solution.

Typical challenges:

  • Media type (e.g. bulk, powder, liquid, paste, etc.)
  • Media properties (e.g. bulk density, conductivity, viscosity, etc.)
  • Input conditions (e.g. tank material, tank geometry, installation position, installations within the tank, etc.)
  • Process conditions (e.g. pressure, temperature, ambient conditions, explosion protection, hygiene requirements, etc.)

In addition to our point level detection sensors our product portfolio also includes a variety of continuous level measurement sensors which unlike limit level sensors can detect the exact level of a medium in real time. 

FAQ – POINT LEVEL DETECTION

› What is point level detection?

Point level detection is used to detect a predefined level in a vessel, silo or tank. It is commonly used for full and empty detection, overfill protection, dry-run protection and process monitoring.

› How does point level detection work?

In point level detection, a sensor monitors a predefined switching point inside a vessel. As soon as the medium reaches or leaves this point, the point level sensor generates an electrical switching signal. Depending on the application, different measuring principles such as vibrating forks, rotary paddle switches, capacitive sensors, conductivity sensors or optical sensors are used.

› What is the function of a point level sensor?

A point level sensor reliably detects whether a predefined level has been reached or fallen below. It protects equipment against overfilling and dry running, controls filling and emptying processes and supports safe, automated process control. Point level sensors are used in silos, tanks, vessels and pipelines.

› Which applications use point level switches?

Point level switches are used wherever a defined level must be detected reliably. Typical applications include full and empty detection, overfill protection, dry-run protection for pumps, demand signalling, leak detection and process control in silos, tanks, mixers and pipelines.

› Which media are suitable for point level sensors?

Point level sensors are suitable for bulk solids, liquids and pasty media. In bulk solids they reliably detect powders, granules, pellets, grain, flour, cement, sand, gravel, stone and plastics. They are also suitable for liquids such as water, oils, chemicals and food products as well as, depending on the measuring principle, pastes and slurries. The most suitable point level sensor depends on the properties of the medium, the process conditions and the requirements of the application.

› Which industries use point level sensors?

Point level sensors are used in almost every process industry. Typical industries include food and beverage, chemical, pharmaceutical, plastics, cement and building materials, power generation, water and wastewater, recycling, wood processing, mining, metal processing and animal feed production. They provide reliable and safe level monitoring in silos, tanks and process plants.

› Which point level sensor is suitable for high process temperatures?

Rotary paddle switches are particularly suitable for applications with high process temperatures. Depending on the version, they can be used at temperatures ranging from −40 °C to +1,100 °C. Special materials, temperature-resistant bearings and the correct installation position ensure reliable point level detection even under extreme process conditions.

› Which point level sensor is suitable for interface detection between solids and liquids?

For interface detection between solids and liquids, for example when measuring sludge levels in wastewater treatment plants or sedimentation tanks, vibrating fork sensors with specially developed electronics are particularly suitable. Their adjustable sensitivity allows the switching point to be precisely adapted to the specific application.

› Which point level sensor is suitable for pressure conveying vessels?

For pressure conveying vessels containing bulk solids such as cement, quartz or other fine-grained materials, vibrating fork sensors are particularly suitable because they operate reliably even under elevated process pressure. Depending on the version, they are suitable for process pressures up to 16 bar. Rotary paddle switches can also be used in applications with pressures up to 10 bar.

› Which point level sensors offer adjustable insertion length?

Many point level sensors can be adjusted to the required switching height using a sliding sleeve. These include rotary paddle switches, vibrating forks, vibrating rods and capacitive point level sensors. This allows the switching point to be easily adapted to changing process requirements even after installation.

FAQ – POINT LEVEL DETECTION

› What is point level detection?

Point level detection is used to detect a predefined level in a vessel, silo or tank. It is commonly used for full and empty detection, overfill protection, dry-run protection and process monitoring.

› How does point level detection work?

In point level detection, a sensor monitors a predefined switching point inside a vessel. As soon as the medium reaches or leaves this point, the point level sensor generates an electrical switching signal. Depending on the application, different measuring principles such as vibrating forks, rotary paddle switches, capacitive sensors, conductivity sensors or optical sensors are used.

› What is the function of a point level sensor?

A point level sensor reliably detects whether a predefined level has been reached or fallen below. It protects equipment against overfilling and dry running, controls filling and emptying processes and supports safe, automated process control. Point level sensors are used in silos, tanks, vessels and pipelines.

› Which applications use point level switches?

Point level switches are used wherever a defined level must be detected reliably. Typical applications include full and empty detection, overfill protection, dry-run protection for pumps, demand signalling, leak detection and process control in silos, tanks, mixers and pipelines.

› Which media are suitable for point level sensors?

Point level sensors are suitable for bulk solids, liquids and pasty media. In bulk solids they reliably detect powders, granules, pellets, grain, flour, cement, sand, gravel, stone and plastics. They are also suitable for liquids such as water, oils, chemicals and food products as well as, depending on the measuring principle, pastes and slurries. The most suitable point level sensor depends on the properties of the medium, the process conditions and the requirements of the application.

› Which industries use point level sensors?

Point level sensors are used in almost every process industry. Typical industries include food and beverage, chemical, pharmaceutical, plastics, cement and building materials, power generation, water and wastewater, recycling, wood processing, mining, metal processing and animal feed production. They provide reliable and safe level monitoring in silos, tanks and process plants.

› Which point level sensor is suitable for high process temperatures?

Rotary paddle switches are particularly suitable for applications with high process temperatures. Depending on the version, they can be used at temperatures ranging from −40 °C to +1,100 °C. Special materials, temperature-resistant bearings and the correct installation position ensure reliable point level detection even under extreme process conditions.

› Which point level sensor is suitable for interface detection between solids and liquids?

For interface detection between solids and liquids, for example when measuring sludge levels in wastewater treatment plants or sedimentation tanks, vibrating fork sensors with specially developed electronics are particularly suitable. Their adjustable sensitivity allows the switching point to be precisely adapted to the specific application.

› Which point level sensor is suitable for pressure conveying vessels?

For pressure conveying vessels containing bulk solids such as cement, quartz or other fine-grained materials, vibrating fork sensors are particularly suitable because they operate reliably even under elevated process pressure. Depending on the version, they are suitable for process pressures up to 16 bar. Rotary paddle switches can also be used in applications with pressures up to 10 bar.

› Which point level sensors offer adjustable insertion length?

Many point level sensors can be adjusted to the required switching height using a sliding sleeve. These include rotary paddle switches, vibrating forks, vibrating rods and capacitive point level sensors. This allows the switching point to be easily adapted to changing process requirements even after installation.

Filter
Sort
Medium
Measuring task
Series
Bulk Weight
Measurement principle
Mounting position filter
Process connection
Max. process temperature
Requirements