Product Overview
The BBDM-400K-UW is a 400 kHz ultrasonic transducer for depth measurement in rivers, lakes and industrial liquid environments. It can also be used for sludge-interface detection. The product combines a 5° narrow beam, stainless-steel housing, G1″ threaded connection and integrated thermistor wiring for fixed liquid-measurement installations.
Key Features
- 400 kHz center operating frequency
- 5° narrow beam
- Stainless-steel housing
- IP68 protection
- Integrated thermistor wiring
- G1″ threaded mounting
Technical Specifications
| Parameter | Value |
|---|---|
| Center operating frequency | 400 kHz ±4% |
| Bandwidth | ±5% |
| Overall sensitivity | >1.5 V |
| Sensitivity test condition | 20 Vp-p at a distance of 30 mm |
| Beam angle (-3 dB full angle) | 5° |
| Static capacitance | 8.0 nF ±20% |
| Impedance | 16 Ω ±30% |
| Maximum operating voltage | <600 V, pulsed, 2% duty cycle |
| Operating temperature | 4 to 60°C |
| Storage temperature | -30 to 80°C |
| Protection rating | IP68 |
| Housing material | Stainless steel |
| Cable | 0.2 mm² four-core shielded cable |
| Mounting | G1″ pipe thread |
| Weight | 1.2 kg |
Wiring
| Wire color | Function |
|---|---|
| Red | Transducer positive |
| Black | Transducer negative |
| Blue and white | Thermistor |
Applications
- River and lake depth measurement
- Liquid-distance measurement in pools and vessels
- Sludge-interface detection
- Industrial liquid measurement