Reliable Non-contact Ultrasonic Level Measurement
The SICK UP56 Ultrasonic Level Sensor is designed for accurate and reliable level measurement where traditional contact measurement methods may face limitations.
Based on ultrasonic measurement technology, the sensor determines the distance to the medium surface by transmitting ultrasonic waves and evaluating the reflected signal. Since the sensor does not touch the measured material, it avoids mechanical wear, contamination and damage caused by aggressive process media.
The UP56 is suitable for measuring:
Liquids
Bulk solids
Aggressive or corrosive media
Viscous and abrasive materials
Typical applications include:
Storage tanks
Equalizing and compensation reservoirs
Chemical process tanks
Dosing systems
Bulk material containers
Designed for Difficult Industrial Media
A major advantage of the SICK UP56 is its ability to operate reliably in challenging process conditions.
The sensor features a PTFE-protected ultrasonic transducer, providing high resistance against difficult media and allowing measurement in applications involving:
Acids and alkaline solutions
Viscous liquids
Inhomogeneous materials
Abrasive substances
Different housing and process material options, including stainless steel, PVDF and PTFE versions, allow the sensor to be adapted to different chemical and mechanical requirements.
Non-contact Measurement for Reduced Maintenance
Because the UP56 measures without direct contact with the medium, it provides several operational advantages compared with mechanical or wetted measurement technologies.
Benefits include:
No moving parts inside the process
Reduced wear and maintenance
No contamination of the sensor by the medium
Suitable for aggressive materials
Easy installation without process interruption
This makes the UP56 particularly suitable for applications where sensor protection and long service life are important factors.
Continuous Measurement and Level Switching in One Device
The UP56 combines multiple level monitoring functions in a single sensor.
Depending on the selected version, it can provide:
Continuous level measurement
Switching output for level alarms
Separate overfill protection
Dry-run monitoring
With two switching outputs, users can monitor conditions such as minimum level and overflow using one device. The combination of analog and switching outputs also enables continuous measurement together with an additional alarm signal.
Pressure-resistant Design for Closed Containers
Unlike many ultrasonic sensors designed only for atmospheric tanks, the UP56 can also be used in pressurized applications.
The sensor supports process pressure up to 6 bar, making it suitable for closed tanks and industrial vessels where pressure conditions must be considered.
This pressure-resistant construction expands the possible applications in:
Chemical storage systems
Process vessels
Pressurized liquid containers
Industrial dosing systems
Flexible Communication and Output Options
The UP56 offers different communication and output configurations to support various automation systems.
Available options include:
IO-Link 1.1
4…20 mA analog output
0…10 V output
PNP switching outputs
NPN switching outputs
IO-Link versions provide additional benefits such as:
Remote parameterization
Diagnostic information
Process data access
Simplified sensor replacement
This allows easy integration into modern industrial automation environments.
Easy Parameterization and Commissioning
The UP56 is designed for simple setup and operation.
Parameter adjustment can be performed through:
Integrated display
IO-Link interface
SICK Connect+ adapter
The adjustable ultrasonic beam helps achieve stable measurement even when installation space is limited or internal tank structures create challenges.
The sensor also supports reliable blanking of interference objects such as agitators to improve measurement stability.
Applications Across Multiple Industries
Chemical Industry
The UP56 is suitable for level monitoring in chemical processes where aggressive liquids require a non-contact measurement method.
Applications:
Acid and alkaline storage tanks
Chemical dosing systems
Process vessels
Water and Wastewater Treatment
The sensor can be used for reliable level monitoring in water treatment facilities.
Applications:
Equalizing tanks
Compensation reservoirs
Chemical dosing tanks
Storage basins
Electronics and Solar Industry
The UP56 supports level measurement in wet chemical processes where aggressive media are commonly used.
Applications:
Chemical supply tanks
Process liquid monitoring
Cleaning systems
Bulk Material Handling
Depending on the selected version, the UP56 can also monitor bulk solids.
Applications:
Material storage containers
Feed systems
Industrial silos
