Ultrasonic level switch BBDM-3M-LS

for liquidsfor pump controlfor tanks

Overview
The BBDM-3M-LS is a 3 MHz ultrasonic liquid level switch transducer designed for discrete liquid-level detection in industrial systems. It is suitable for high/low level alarms, liquid presence/absence detection, pump protection and level control where compact, sealed sensing is required.

Electrical and operating specifications
Key electrical and operating parameters are provided for correct integration and selection: center frequency 3 MHz ±5%; minimum impedance 450 Ω ±20%; capacitance 520 pF ±20% at 1 kHz; peak operating voltage <100 Vpp; operating temperature -20 to +60°C; pressure rating 1 MPa (10 bar); protection rating IP68.

Applications

• High and low liquid-level alarms in vessels
• Liquid presence or absence detection
• Pump protection
• Level control in industrial equipment

Selection and electrical integration
When selecting and integrating the BBDM-3M-LS, consider the operating medium and temperature, required acoustic path or measuring distance, target size and surface condition, available installation space, operating pressure and ingress protection. Match the drive and receive electronics to the specified minimum impedance, capacitance and peak voltage to ensure reliable switching performance.

Technical specifications

• Model: BBDM-3M-LS
• Center frequency: 3 MHz ±5%
• Minimum impedance: 450 Ω ±20%
• Capacitance: 520 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <100 Vpp
• Operating temperature: -20 to +60°C
• Pressure rating: 1 MPa (10 bar)
• Protection rating: IP68