Product Overview

The Probe Ultrasonic level transmitter: continuous, non-contact, 5 m (16.4 ft) range. Monitors level for liquids and slurries. With 3-wire relay output. Short-range integrated ultrasonic level transmitter, ideal for liquids and slurries in open or closed vessels. Features patented sonic intelligence echo processing for accurate and reliable measurements.

Key Features

Measurement Technology:

• Ultrasonic Sensing: Non-contact ultrasonic level measurement
• 5 Meter Range: Up to 5 meters (16.4 feet) measuring range
• Continuous Monitoring: Real-time level monitoring for liquids and slurries
• Sonic Intelligence: Patented sonic intelligence echo processing technology

Output Configuration:

• 3-Wire Design: 3-wire relay output configuration
• 24 VDC Operation: Standard 24 VDC power supply
• Relay Output: Integrated relay output for direct control applications
• Temperature Compensation: Built-in temperature compensation

Construction:

• PVDF Transducer: PVDF copolymer transducer material for chemical resistance
• Compact Design: Integrated transmitter for space-efficient installation
• Robust Construction: Suitable for industrial environments
• Easy Installation: Simple mounting and connection

Technical Specifications

Measurement Performance:

• Measuring Range: 5 meters (16.4 feet)
• Accuracy: ±0.25% of range
• Resolution: High resolution measurement
• Frequency: 54 kHz ultrasonic frequency
• Beam Angle: 12° beam angle for focused measurement

Electrical Specifications:

• Power Supply: 24 VDC
• Configuration: 3-wire connection
• Output: Relay output
• Current Output: 4-20 mA (where applicable)
• Temperature Compensation: Integral temperature compensation

Physical Characteristics:

• Process Connection: R 2" (BSPT), EN 10226
• Transducer Material: PVDF copolymer
• Mounting: Vertical mounting configuration
• Net Weight: 1.6 kg

Environmental Specifications:

• Operating Temperature: -40°C to +60°C (-40°F to +140°F)
• Storage Temperature: Extended temperature range for storage
• Humidity: Suitable for industrial humidity levels
• Chemical Resistance: PVDF material provides excellent chemical resistance

Approvals and Certifications:

• CE Marking: European conformity
• UKCA: UK conformity assessment
• RCM: Regulatory compliance mark
• CSA: Canadian Standards Association
• FM: Factory Mutual approval

Standards and Compliance:

• RoHS Compliance: Yes, since 20.07.2017
• WEEE Take-Back Obligation: Yes
• Export Control: ECCN: EAR99I / AL: N
• Country of Origin: Canada

Product Information:

• EAN: 4019169849623
• Net Weight: 1.6 kg
• Packaging Dimensions: 205.00 x 316.00 x 95.00 mm
• Packaging Quantity: 1 piece

Applications

The Probe Ultrasonic Level Transmitter is ideal for:

• Chemical Storage Vessels: Level monitoring in chemical storage tanks
• Water Treatment: Level measurement in water and wastewater applications
• Food and Beverage: Sanitary applications in food processing
• Pharmaceutical: Level monitoring in pharmaceutical manufacturing
• Filter Beds: Level measurement in filtration systems
• Mud Pits: Level monitoring in drilling and mining operations
• Liquid Storage: General liquid storage vessel monitoring
• Slurry Applications: Level measurement in slurry and sludge applications

Installation and Operation

Installation Benefits:

• Easy Installation: Simple 3-wire connection
• Non-Contact Measurement: No contact with process medium
• Vertical Mounting: Standard vertical installation
• Compact Design: Space-efficient integrated design

Operational Features:

• Sonic Intelligence: Advanced echo processing eliminates false readings
• Reliable Performance: Accurate measurements not influenced by obstructions
• Temperature Stable: Built-in temperature compensation
• Low Maintenance: No moving parts or wear components

Technology Advantages

Sonic Intelligence Processing:

• False Echo Elimination: Advanced processing filters out false echoes
• Obstruction Immunity: Reliable operation with tank obstructions
• Electrical Interference Rejection: Immune to electrical interference
• Consistent Performance: Reliable measurements in challenging conditions

Measurement Reliability:

• High Accuracy: ±0.25% of range accuracy
• Repeatable Results: Consistent measurement performance
• Fast Response: Quick measurement updates
• Stable Operation: Reliable performance over time

System Integration

Control Integration:

• Relay Output: Direct connection to control systems
• 3-Wire Design: Simplified wiring and installation
• Standard Voltages: 24 VDC operation
• Process Control: Integration with pump and valve controls

Monitoring Capabilities:

• Level Monitoring: Continuous level measurement
• Alarm Functions: High/low level alarms
• Control Applications: Pump start/stop control
• Data Logging: Integration with monitoring systems

Advantages

Measurement Benefits:

• Non-Contact Operation: No maintenance of wetted parts
• Chemical Compatibility: PVDF transducer resists most chemicals
• Wide Range: 5-meter measuring range
• High Accuracy: Precise level measurement

Installation Advantages:

• Simple Wiring: 3-wire connection
• Compact Design: Integrated transmitter saves space
• Flexible Mounting: Vertical mounting option
• Easy Programming: Simple setup and configuration

Operational Benefits:

• Reliable Performance: Proven ultrasonic technology
• Low Maintenance: No moving parts
• Cost Effective: Reduces installation and operating costs
• Versatile Applications: Suitable for various liquid types

Important Product Notice

Product Status: This product is discontinued and no longer available for new orders. The product is in the final year of support phase.

Successor Product: SITRANS Probe LU240 (7ML51 series) is the recommended replacement with enhanced features and improved performance.

Support: For assistance with replacements or technical support, please contact your local Siemens office.

REACH Compliance

Currently, there is no information on SVHC (Substances of Very High Concern) from the supply chain. Products are regularly compared with the REACH candidate list, and information will be updated as new findings become available.

Download existing graphical data for this product:

• Product Information and Technical Data
• Product Datasheet
• The Probe Instruction Manual
• Replacement Product Information
• Technical Support Documentation