Endress+Hauser Memosens CUS71E Ultrasonic Interface Sensor

$270.00

Endress+Hauser Memosens CUS71E Ultrasonic Interface Sensor is a reliable ultrasonic sensor for sludge level and sediment interface measurement in water and wastewater treatment applications.

Using ultrasonic return-time measurement technology, the CUS71E accurately detects the interface between water and settled solids, helping operators monitor sedimentation processes and improve process control.

With Memosens digital technology, integrated sensor cleaning and reliable operation in demanding environments, it reduces manual measurement requirements and supports efficient sludge management in wastewater treatment plants, drinking water facilities, mining and utility applications.

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Smart Ultrasonic Measurement for Sedimentation Processes

The Endress+Hauser Memosens CUS71E is an ultrasonic interface sensor developed for continuous monitoring of sediment layers in tanks, basins and reservoirs.

In clarification and sedimentation processes, knowing the exact boundary between clear water and settled solids is essential for stable operation. The CUS71E provides continuous interface level measurement, allowing operators to optimize sludge removal, chemical dosing and treatment efficiency.

Typical applications include:


  • Primary and secondary clarification

  • Sludge sedimentation monitoring

  • Drinking water treatment

  • Industrial wastewater treatment

  • Mining water processes

Ultrasonic Return-Time Measurement Principle

The CUS71E uses an ultrasonic echo measurement principle to identify the interface layer between liquid and sediment.

The sensor sends ultrasonic pulses into the medium and analyzes the reflected signals from different layers. Based on the signal travel time, the system determines the sediment interface position.

Advantages include:


  • Continuous interface level measurement

  • Reliable detection of sludge layers

  • Suitable for large sedimentation basins

  • Reduced dependence on manual sampling

  • Improved process visibility

Optimized for Wastewater Treatment Applications

The CUS71E is especially designed for sedimentation processes in wastewater treatment plants.

Typical uses include:

Clarifier Monitoring

The sensor helps monitor:


  • Sludge blanket level

  • Settling performance

  • Clarifier operation

By providing real-time sediment information, operators can adjust sludge withdrawal and maintain stable treatment performance.

Chemical Dosing Optimization

The CUS71E provides a sedimentation factor that can be used as a process quality indicator.

Benefits include:


  • Improved precipitation process control

  • Optimized chemical consumption

  • Reduced operating costs

  • More stable treatment results

Memosens Digital Technology

The CUS71E uses Memosens digital sensor technology, providing reliable data transmission and simplified sensor management.

Key benefits include:


  • Digital signal transmission

  • Stored calibration data

  • Easy sensor replacement

  • Improved measurement reliability

  • Predictive maintenance support

Memosens technology allows faster maintenance procedures and improves overall system availability.

Integrated Cleaning for Reliable Operation

Sediment measurement sensors often operate in environments with high solids content and contamination risks.

The CUS71E is available with an integrated wiper system to help maintain consistent measurement performance.

Advantages include:


  • Reduced sensor fouling

  • Stable measurement results

  • Less manual cleaning

  • Improved long-term availability

Suitable for Demanding Industrial Environments

The CUS71E is designed for various challenging applications beyond wastewater treatment.

Suitable industries include:

Drinking Water Treatment

Applications:


  • Sedimentation tank monitoring

  • Clarification process control

  • Sludge level measurement

Mining Industry

Applications:


  • Tailings pond monitoring

  • Sedimentation process control

  • Water treatment management

Hydropower and Utilities

Applications:


  • Reservoir sediment monitoring

  • Water quality management

  • Process optimization

Key Features


  • Digital ultrasonic interface sensor

  • Designed for sediment and sludge interface measurement

  • Ultrasonic return-time measurement principle

  • Continuous monitoring of sedimentation processes

  • Measuring range up to 30 m

  • Suitable for wastewater, drinking water and mining applications

  • Memosens digital technology

  • Optional integrated wiper cleaning system

  • Compatible with Liquiline CM44x transmitters

  • Supports hazardous area approvals depending on configuration

Typical Applications

Wastewater Treatment Plants

The CUS71E supports automatic monitoring of sedimentation processes.

Applications:


  • Primary clarifiers

  • Secondary clarifiers

  • Sludge blanket measurement

  • Sludge removal optimization

Drinking Water Treatment

The sensor helps maintain efficient clarification processes.

Applications:


  • Sedimentation basin monitoring

  • Sludge interface measurement

  • Treatment process optimization

Mining Water Management

The CUS71E supports monitoring of sediment layers in mining-related water processes.

Applications:


  • Tailings management

  • Settling ponds

  • Process water treatment

Industrial Utilities

Applications:


  • Industrial wastewater monitoring

  • Sedimentation tank control

  • Solids separation processes

FAQ

What is Endress+Hauser CUS71E?

The CUS71E is a digital ultrasonic interface sensor designed for continuous measurement of sediment layers and sludge interfaces in water and wastewater applications.

What does CUS71E measure?

CUS71E measures the interface level between water and settled solids, such as sludge layers in sedimentation tanks.

What measurement principle does CUS71E use?

It uses ultrasonic return-time measurement technology to detect sediment interfaces.

Where is CUS71E used?

It is mainly used in wastewater treatment, drinking water treatment, mining and utility applications.

What is the difference between CUS51D and CUS71E?

CUS51D is mainly used for suspended solids and turbidity measurement, while CUS71E is designed for interface level measurement between water and sediment layers.

Measuring principle Ultrasonic sensor
Application Continious interface measurement in sedimentation basins
Installation Immersed sensor with fixed cable
Measuring range 0.3 to 30 m (1 to 100 ft)
Measuring principle Ultrasonic return-time measurement
Material Housing: PPS GF40
Wiper: EPDM or Silicone
Wiper arm: PPS GF40
Wiper shaft: 1.4571
Dimension Diameter: 75.2 mm (3 inch)
Lenght standard sensor: 80 mm (3.15 inch)
Lenght with wiper: 90.5 mm (3.56 inch)
Process temperature 5 to 80 °C (41 to 176 °F)
Process pressure 0 to 1 bar (0 to 14,5 psi)
Temperature sensor -20 to 85°C (-4 to 185°F)
Ex certification ATEX, CSA
Connection Process connection: G1 and NPT 3/4"
Fixed cable 15 m
Ingress protection IP68
Output / communication Digital output for connection to Liquiline CM44x
Certificates, declarations and approvals CSA GP, ATEX II 3G EX ec, IECEX Ex ec, CSA US Cl.1 Div.2