Air injection ultrasonic transducer BBDM-16KR50M

beammeasurementfor level measurement

Overview
The BBDM-16KR50M is an air-coupled ultrasonic distance transducer designed for long measurement paths. With a 16 kHz center frequency and a reference range of 1.8–50 m, it is suitable for large-tank level monitoring, industrial distance measurement, collision avoidance, area surveillance and long-range target detection. The specified -3 dB half-power beam angle is 13° ±10%; beam pattern, target dimensions and mounting axis must be assessed together, particularly at the far end of the intended range.

Technical specifications
Model: BBDM-16KR50M. Center frequency: 16 kHz ±5%. Recommended range: 1.8–50 m. Minimum impedance: 790 Ω ±20%. Capacitance: 12,700 pF ±20% at 1 kHz. Operating voltage: peak voltage below 1,500 Vpp. Operating temperature: −40 to +80 °C. Pressure rating: up to 3 kgf (0.3 MPa). Beam characteristic: -3 dB half-power angle 13° ±10%. Protection rating: IP68. Weight: 2,400 g ±5% with 10 m ±0.3 m cable.

• Model: BBDM-16KR50M
• Center frequency: 16 kHz ±5%
• Recommended range: 1.8–50 m
• Minimum impedance: 790 Ω ±20%
• Capacitance: 12,700 pF ±20% at 1 kHz
• Operating voltage: peak voltage below 1,500 Vpp
• Operating temperature: −40 to +80 °C
• Pressure rating: up to 3 kgf (0.3 MPa)
• Beam characteristic: -3 dB half-power angle 13° ±10%
• Protection rating: IP68
• Weight: 2,400 g ±5% with 10 m ±0.3 m cable

Mounting configurations
Top and bottom mounting: M32 x 1.5 top thread and M108 x 2 bottom thread. Bottom mounting: M108 x 2 bottom thread.

Installation notes
Include the 2.4 kg assembly and 10 m cable in mechanical support and cable-routing plans. Select the mounting version from the actual dimensional drawing rather than from the thread designation alone. Ensure drive and receive electronics accommodate the stated impedance, capacitance and peak-voltage limit.

Range validation and selection
The 50 m value is a reference range, not a guaranteed result for every surface or atmosphere. Confirm target size, orientation and reflectivity, air temperature, required dead zone, installation alignment and possible obstructions before final selection.