Ultrasonic flow meter BBUFM-W

volumefor waterfor wastewater

Product Overview
The BBUFM-W is a wall-mounted ultrasonic liquid flow meter designed for long-term online monitoring. It uses transit-time measurement and supports clamp-on, insertion, or pipe-section transducers for water, sewage, cooling water, oils, chemicals, beverages and other acoustically conductive liquids. The converter provides analog, pulse, relay and isolated RS485/Modbus interfaces; with Pt100 temperature sensors the system can also calculate heating and cooling energy.

Key Features

• Wall-mounted continuous online measurement
• ±1% measurement accuracy
• Suitable for pipe sizes DN25 to DN6000
• Clamp-on, insertion and pipe-section transducers
• Flow and heating/cooling energy measurement with Pt100
• 4–20 mA, pulse, relay and signal interfaces
• Isolated RS485 with Modbus
• IP67 converter and IP68 transducers
• AC or DC power supply options

Technical Specifications
Measuring principle — Ultrasonic transit time
Accuracy — ±1%
Display — 2 × 20-character backlit LCD
Pipe size — DN25 to DN6000
Pipe materials — Steel, stainless steel, cast iron, copper, cement, PVC, aluminum, fiberglass, lined pipes
Measured liquids — Water, sewage, cooling water, oils, chemicals, beverages and other acoustically conductive liquids
Medium temperature — -30 to +160 °C (depending on transducer)
Flow-velocity range — 0 to ±7 m/s
Turbidity — ≤10000 ppm (with limited bubbles)
Analog output — One 4-20 mA output
Pulse output — One OCT output
Relay outputs — Four
Signal inputs — Three 4-20 mA inputs
Temperature input — Pt100
Communication — Isolated RS485 with Modbus
Power supply — 8 to 36 VDC or 85 to 264 VAC
Power consumption — 1.5 W
Converter temperature — -20 to +60 °C
Protection — IP67 converter; IP68 transducers
Converter dimensions — 132 × 150 × 85 mm

Transducers and Mounting

• Clamp-on transducers for installation without cutting the pipe
• Insertion transducers for permanent fixed measurement
• Pipe-section transducers for small pipes or stable installations
• High-temperature transducers for media up to 160 °C
• Pt100 temperature sensors for heating/cooling energy measurement

Typical Applications

• Fixed pipeline flow monitoring
• Water supply, drainage and wastewater treatment
• HVAC and energy metering
• Industrial cooling and circulation systems
• Petroleum, chemical and process control