Short-range distance sensing from 0.2 to 4 m
The BBDM-90KR4M is a 90 kHz air ultrasonic distance transducer for a reference measuring range of 0.2 to 4 m. Its specified -3 dB half-power beam angle is 10.2° ±10%, supporting short-range detection within a defined acoustic field.
Applications listed for this model include automation proximity detection, short-range positioning, counting and target detection, and compact level measurement.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | BBDM-90KR4M |
| Center frequency | 90 kHz ±5% |
| Recommended range | 0.2-4 m |
| Minimum impedance | 400 Ω ±20% |
| Capacitance | 1,400 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <1,200 Vpp |
| Operating temperature | -40 to +80°C |
| Pressure rating | ≤3 kgf or 0.3 MPa |
| Beamwidth | -3 dB half-power angle: 10.2° ±10% |
| Mounting | M38 × 1.5 thread |
| Protection rating | IP68 |
| Weight | 122 g ±5% with 1 m cable |
Applications named in the product data
- Automation proximity detection
- Short-range positioning
- Counting and target detection
- Compact level measurement
Mechanical and electrical integration
The standard mounting specification is an M38 × 1.5 thread. The stated weight is 122 g ±5% with a 1 m cable. Housing, mounting, cable and connection options are available for equipment integration.
For the interface electronics, the source specifies a minimum impedance of 400 Ω ±20%, capacitance of 1,400 pF ±20% at 1 kHz, and a peak operating voltage below 1,200 Vpp.