Product Overview
BBUFM-S is a compact clamp-on ultrasonic liquid flow meter designed for small pipes, equipment integration, and continuous online monitoring. It uses the ultrasonic transit-time principle and installs externally on the pipe, so the pipe does not need to be cut, drilled, or opened and the sensor does not contact the liquid.
The compact mounting structure is suitable for clean-liquid applications where installation space is limited. It is intended for water, purified water, ultrapure water, beverages, cleaning liquids, and other process liquids with stable acoustic properties.
Key Features
- Non-invasive clamp-on measurement with no pipe cutting or process interruption
- Compact structure for small-pipe and equipment-mounted applications
- Ultrasonic transit-time measurement principle
- OLED display for instantaneous and accumulated flow
- RS485/Modbus communication and 4–20 mA output
- Optional OCT upper- and lower-limit alarm output
- No moving parts and no additional pressure loss
- Suitable for metal and common plastic pipes
Typical Applications
- Industrial cleaning and flat-glass cleaning equipment
- Beverage, food, and pharmaceutical production lines
- Purified-water and ultrapure-water systems
- HVAC equipment and cooling-water circuits
- Chemical and process-liquid transfer
- Small-pipe flow monitoring and equipment integration
Suitable Liquids
BBUFM-S is intended for clean liquids with stable acoustic properties and minimal bubbles or cavitation, including:
- Tap water, purified water, and ultrapure water
- Beverages and alcohol-based liquids
- Acid, alkali, and salt solutions
- Cleaning liquids and selected chemical solvents
- Other clean process liquids suitable for ultrasonic transmission
Technical Specifications
| Parameter | Value |
|---|---|
| Measurement principle | Ultrasonic transit time |
| Velocity range | 0.1 to 5.0 m/s |
| Accuracy | ±2.0% |
| Repeatability | 0.8% |
| Pipe outside-diameter range | Approximately 6.35 to 90 mm |
| Analog output | 4–20 mA, 600 Ω maximum load |
| Alarm output | Optional OCT upper- and lower-limit alarm |
| Communication | RS485, Modbus protocol |
| Power supply | 24 VDC |
| Standard cable length | 2.0 m |
| Display | 128 × 64 OLED |
| Totalizer | Six digits |
| Data storage | Daily, monthly, annual, and accumulated flow records |
| Ambient temperature | 0 to 50 °C |
| Medium temperature | 0 to 50 °C for the compact configuration |
| Humidity | 0–95% RH, non-condensing |
| Protection rating | IP54 |
| Enclosure material | Aluminum alloy |
Pipe Size Options
The mounting bracket is selected according to the actual pipe outside diameter. Standard sizes cover small pipes from approximately 6.35 mm to 90 mm OD. Pipe outside diameter, wall thickness, and pipe material should be confirmed before selection.
Compatible Pipe Materials
- Stainless steel
- Carbon steel
- Copper
- PVC / CPVC
- PVDF
- PPR / PPH
- HDPE and other suitable plastic pipes
Measurements and Display
- Instantaneous flow
- Net accumulated flow
- Daily, monthly, and annual accumulated records
- Metric and imperial engineering units
- Upper- and lower-limit alarm functions
Selection Information
- Actual pipe outside diameter, inside diameter, and wall thickness
- Pipe material
- Liquid name
- Medium temperature
- Expected flow range
- Required output and communication interface