Product Overview
BBUFM-P is a portable clamp-on ultrasonic liquid flow meter for temporary measurement, commissioning, verification, troubleshooting, and field flow surveys. The external transducers are mounted on the pipe without cutting or opening the line, making the instrument suitable for fast measurements at multiple locations.
Standard and High-Accuracy configurations are available. Both use a rechargeable built-in lithium battery and support external 4–20 mA output for temporary monitoring or data collection.
Key Features
- Portable, non-invasive clamp-on ultrasonic flow measurement
- No pipe cutting and no process interruption
- Standard and High-Accuracy configurations
- Built-in lithium battery with approximately 16 hours of operation
- Wide pipe-size coverage up to 5000 mm
- Large TFT display and tactile keypad
- 4–20 mA analog output
- Suitable for field measurement and multi-point inspection
Typical Applications
- Flow verification and commissioning
- Temporary plant flow measurement
- Water supply and water-treatment surveys
- HVAC balancing and chilled-water testing
- Industrial process-water measurement
- Pump and pipeline performance checks
Suitable Liquids
The instrument is intended for full-pipe liquid applications suitable for ultrasonic transit-time measurement, particularly water and relatively clean process liquids.
Technical Specifications
| Parameter | Standard | High Accuracy |
|---|---|---|
| Measurement principle | Ultrasonic transit time | |
| Velocity range | 0 to ±12 m/s | 0 to ±12 m/s |
| Accuracy | ±1.0% of measured value | ±0.5% of measured value |
| Repeatability | 0.2% | 0.15% |
| Linearity | ±1.0% | ±0.5% |
| Pipe size | 25 to 2000 mm | 25 to 5000 mm |
| Analog output | 4–20 mA, maximum load 750 Ω | |
| Power supply | Built-in lithium battery | |
| Typical battery operation | Approximately 16 hours | |
| Display | 2.8-inch TFT LCD, 320 × 240 | 3.5-inch TFT LCD, 480 × 320 |
| Transmitter operating temperature | -40 to 60 °C | |
| Standard transducer temperature | -40 to 80 °C | |
| Humidity | Up to 95% RH, non-condensing | |
| Transmitter enclosure | Die-cast aluminum | |
| Standard transducer cable | 5 m | |
Configuration Options
| Configuration | Recommended Use |
|---|---|
| Standard | General field measurement; ±1.0% accuracy; pipe sizes from 25 to 2000 mm |
| High Accuracy | Higher-accuracy field measurement and larger pipes; ±0.5% accuracy; pipe sizes from 25 to 5000 mm |
Installation Methods
V, Z, N, and W methods can be selected according to pipe diameter and measurement conditions. Correct transducer spacing and a suitable straight-pipe section are important for reliable measurement.
Selection Information
- Pipe outside diameter and wall thickness
- Pipe material and lining, if any
- Liquid name and temperature
- Expected flow range
- Required accuracy level
- Expected measurement locations
- Required cable length and 4–20 mA output use