Details
Wall Mounted Ultrasonic Flow and BTU Energy Meter
Non-invasive flow measurement for water, HVAC, utilities and energy monitoring.
FBTU2X is a cost-effective wall mounted ultrasonic flow meter with optional BTU / heat energy measurement capability for long-term flow and energy monitoring applications.
Using advanced transit-time ultrasonic technology, it provides accurate non-invasive flow measurement without pipe cutting, process interruption or pressure loss.
Introduction
FBTU2X is designed for long-term flow and energy monitoring where installation simplicity, reliable measurement and low disruption are important.
It is suitable for a wide range of liquids including potable water, chilled water, cooling water, chemicals, reclaimed water, raw sewage, river water, plant effluent and ultra-pure liquids.
With IP67 protection for the converter and IP68 protection for the transducer, the FBTU2X is suitable for demanding industrial, commercial and utility environments while supporting stable long-term operation.
Why Use FBTU2X?
Non-Invasive Installation
Clamp-on installation avoids pipe cutting, pressure loss and process interruption in suitable applications.
Optional Heat Energy Measurement
Supports BTU / heat energy calculation when paired with optional Pt100 temperature sensors.
System Integration Ready
RS485 Modbus, 4-20mA, OCT pulse and relay outputs support integration with BMS, EMS and control systems.
Features
- Transit-time ultrasonic measurement technology with ±1% accuracy
- Optional BTU / heat energy measurement with Pt100 temperature transducers
- Non-invasive clamp-on installation with no pipe cutting and no pressure loss
- Supports clamp-on, high temperature clamp-on, insertion and pipe-type transducers
- Suitable for pipe sizes from DN25 to DN6000 depending on transducer selection
- Measures conductive and non-conductive liquids including water, chemicals, oils and wastewater
- IP67-rated converter and IP68-rated transducers for harsh environments
- Large backlit 2 × 20 LCD display with multilingual support
- 4-20mA analog output, OCT pulse output and relay output
- RS485 communication with Modbus support
- Optional SD Card memory for long-term data logging and reporting
- Wide operating temperature range from -30°C to 160°C depending on transducer type
- Low power consumption of only 1.5W
- Suitable for HVAC, energy management, water treatment, industrial utilities and process control
Typical Applications
FBTU2X can be used in a wide range of flow, utility and energy monitoring applications across commercial, industrial and infrastructure sites.
HVAC Energy Management
Measure chilled water, cooling water and BTU energy for building and plant energy management.
District Cooling Systems
Support flow and heat energy measurement for chilled water distribution and cooling networks.
Water Treatment Facilities
Monitor potable water, reclaimed water, raw sewage, plant effluent and utility water flow.
Industrial Process Monitoring
Measure flow for process liquids, chemicals, cooling systems and plant utility circuits.
Building Management Systems
Integrate flow and BTU data into BMS, EMS or remote monitoring platforms.
Energy Efficiency Projects
Support energy audits, performance monitoring, M&V and equipment efficiency tracking.
Specifications
The following table summarises the general specifications for the FBTU2X ultrasonic flow meter.
| Item | Specification |
|---|---|
| Measuring Principle | Transit-Time Ultrasonic Flow Meter |
| Accuracy | ±1% |
| Display | 2 × 20 Character Backlit LCD |
| Pipe Size Range | DN25 ~ DN6000 |
| Flow Range | 0 ~ ±7 m/s |
| Communication | RS485 with Modbus Support |
| Outputs | 4-20mA, OCT Pulse, Relay |
| Power Supply | DC 8~36V or Optional AC 85~264V |
| Power Consumption | 1.5W |
| Converter Protection | IP67 |
| Transducer Protection | IP68 |
| Converter Dimensions | 132 × 150 × 85 mm |
| Operating Temperature | Converter: -20°C ~ 60°C; Transducer: -30°C ~ 160°C |
| Data Logging | Optional SD Card Memory |
| Heat Measurement | Optional Pt100 Temperature Sensors |
Product Summary
The FBTU2X Wall Mounted Ultrasonic Flow Meter provides accurate, non-invasive flow measurement for water, HVAC, utility and industrial process applications.
With optional BTU energy measurement, multiple transducer configurations, Modbus communication, analog and pulse outputs, and rugged IP-rated construction, it is a practical solution for long-term flow and energy monitoring.
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