Immersible ultrasonic transducer BBDM-2M-LS

high-frequencyfor level measurement

Overview
The BBDM-2M-LS is a 2 MHz ultrasonic liquid level switch transducer designed for discrete level detection in industrial systems. It is suitable for high/low level alarms, liquid presence/absence detection, pump protection and basic level control, offering IP68 ingress protection and an aluminum housing for harsh environments.

Technical specifications (table)
Model — BBDM-2M-LS
Center frequency — 2 MHz ±5%
Minimum impedance — 200 Ω ±20%
Capacitance — 2,500 pF ±20% at 1 kHz
Operating voltage — Peak voltage <300 Vpp
Operating temperature — -40 to +80°C
Pressure rating — ≤10 kgf or 1 MPa
Housing material — Aluminum
Protection rating — IP68

Applications

• High and low level alarms in vessels and tanks
• Liquid presence or absence detection on lines and sumps
• Pump protection to prevent dry-run
• Simple level control in industrial equipment

Selection and electrical integration
Select the BBDM-2M-LS based on the operating medium and temperature, required sensing distance (acoustic path), target size and surface condition, installation space, and system pressure. Design the drive and receive electronics to match the specified minimum impedance, capacitance and peak operating voltage to ensure reliable switching and signal integrity.

Key features

• Model: BBDM-2M-LS
• Center frequency: 2 MHz ±5%
• Minimum impedance: 200 Ω ±20%
• Capacitance: 2,500 pF ±20% at 1 kHz
• Operating voltage: Peak voltage <300 Vpp
• Operating temperature: -40 to +80°C
• Pressure rating: ≤10 kgf / 1 MPa
• Housing: Aluminum
• Ingress protection: IP68