Product Overview
The BBDM-2MR2M is a 2 MHz externally mounted ultrasonic transducer for liquid-level and distance measurement over a range of 0.015 to 2 m. Its compact aluminum-alloy housing combines a 3° narrow beam with a blind zone below 15 mm. It can be installed outside a vessel and integrated into level-monitoring, control and alarm equipment.
Key Features
- 2 MHz center operating frequency
- 0.015 to 2 m measurement range
- Blind zone below 15 mm
- 3° narrow beam
- External mounting
- Integrated temperature-signal leads
Technical Specifications
| Parameter | Value |
|---|---|
| Center operating frequency | 2 MHz |
| Measurement range | 0.015 to 2 m |
| Blind zone | <15 mm |
| Beam width (-3 dB full angle) | 3° |
| Static capacitance | 1800 pF ±20% |
| Minimum parallel impedance | 60 Ω ±30% |
| Maximum operating voltage | <200 V, pulsed, 2% duty cycle |
| Operating temperature | -20 to 70°C |
| Protection rating | IP67 |
| Housing material | Aluminum alloy |
| Dimensions | Φ36 × 14.6 mm |
| Standard cable length | 1 m |
| Weight | 102 g |
Wiring
| Wire color | Function |
|---|---|
| Red | Transducer positive |
| Yellow | Transducer negative |
| Blue and green | Temperature signal |
Applications
- Externally mounted level measurement on tanks and vessels
- Industrial liquid-distance measurement
- Level control and alarm systems
- Level-measurement equipment with limited installation space