Dwyer Instruments TUF-1500-BN | Tenant ultrasonic BTU flowmeter | DN150 pipe size and 150 m3/h permanent flow rate with BACnet® communication
The Dwyer TUF-1500-BN is a tenant ultrasonic BTU flowmeter designed for DN150 piping with a 150 m³/h permanent rated flow rate. It combines flow measurement, temperature sensing and energy calculation in one compact unit, with BACnet® MSTP communication for integration with building automation and utility billing systems.
Part Number: TUF-1500-BN
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Product Overview
The Dwyer Series TUF Ultrasonic Energy Meter uses ultrasonic technology to measure heating and cooling energy consumption in clean, compatible liquids. The TUF-1500-BN is the DN150 version, rated for a 150 m³/h permanent flow rate, making it suitable for larger chilled-water and heating-water installations.
By combining a flowmeter, temperature sensors and an energy calculator in one device, the TUF-1500-BN can simplify energy measurement for applications such as chillers, boilers, radiators, fan coil units and individual tenant or apartment piping. This makes it suitable for heat metering, utility sub-metering and tenant-level energy billing.
The ultrasonic measurement principle uses no moving parts, helping reduce mechanical wear and maintenance requirements compared with traditional mechanical BTU meters. An integrated 8-digit LCD provides local access to temperature, flow rate and energy readings directly at the meter.
For building management and billing-system integration, the TUF-1500-BN provides BACnet® MSTP communication. This allows the meter to communicate with compatible building automation systems and utility management infrastructure.
The meter features a plastic housing with brass and 316L stainless steel wetted parts and an IP65 enclosure rating. The DN150 version uses a flange connection and can be installed horizontally or vertically. On horizontal pipe runs, the meter should be positioned at least 45° from horizontal to help prevent debris accumulation.
The unit operates from a 24 Vac/Vdc power supply and can also use an optional user-supplied 3.6V ER26500 lithium battery for backup. The TUF-1500-MD is the corresponding DN150 variant using Modbus RTU instead of BACnet® MSTP.
Key Benefits
- Combines flow measurement, temperature sensing and energy calculation in one compact meter
- DN150 pipe size with 150 m³/h permanent rated flow
- Ultrasonic technology with no moving parts for reduced mechanical maintenance
- 8-digit LCD for local temperature, flow and energy readings
- BACnet® MSTP communication for BMS and utility billing integration
- BTU accuracy Class 2 per EN1434/CJ128
- IP65-rated plastic housing
- Brass and 316L stainless steel wetted materials
- Optional 3.6V ER26500 lithium battery backup
- Suitable for tenant-level heat metering and utility sub-metering
- Free UAE-wide shipping on genuine stock
Who This Product Is Best For
The TUF-1500-BN is suited for:
- Landlords and property managers requiring tenant-level heating or cooling energy billing
- Building owners monitoring chillers, boilers, radiators and fan coil units
- BMS integrators using BACnet® for energy and utility sub-metering
- Commercial and residential buildings requiring centralized energy monitoring
- HVAC and mechanical contractors installing ultrasonic energy meters on DN150 piping
How to Specify & Commission It
- Confirm that the DN150 pipe size and 150 m³/h permanent rated flow are appropriate for the installation and expected load.
- Install the meter using the DN150 flange connection and follow the specified horizontal or vertical mounting requirements.
- On horizontal pipe runs, maintain the recommended position of at least 45° from horizontal.
- Connect the 24 Vac/Vdc power supply and install the optional lithium battery backup if required.
- Connect the BACnet® MSTP communication output to the BMS or billing system and configure the required communication parameters.
- Verify the flow, temperature and energy readings on the local LCD before commissioning and handover.
Frequently Asked Questions
What pipe size and flow rate is the TUF-1500-BN designed for?
The TUF-1500-BN is designed for DN150 piping with a 150 m³/h permanent rated flow rate.
What communication protocol does the TUF-1500-BN use?
This variant uses BACnet® MSTP communication for integration with compatible BMS and utility billing systems.
What accuracy does the TUF-1500-BN provide?
The Series TUF provides BTU accuracy Class 2 according to EN1434/CJ128, with flow accuracy of ±(2+(0.02 Qp/Q))% and temperature accuracy of ±0.1°C (±0.18°F).
What is the maximum operating pressure?
The maximum operating pressure is 362 psi (25 bar).
What is the process temperature range?
The process temperature range is 36 to 203°F (2 to 95°C).
Does the TUF-1500-BN require external power?
The meter operates from a 24 Vac/Vdc supply. An optional user-supplied 3.6V ER26500 lithium battery can provide backup for the display and stored readings during a power interruption.
What is the difference between the TUF-1500-BN and TUF-1500-MD?
Both variants use the same DN150 flowmeter body and specifications. The communication protocol differs: the TUF-1500-BN uses BACnet® MSTP, while the TUF-1500-MD uses Modbus RTU.
Is the TUF-1500-BN suitable for tenant energy billing?
Yes. Its combination of flow measurement, temperature measurement, energy calculation and BACnet® MSTP communication makes it suitable for tenant-level heat metering and utility sub-metering applications.
Is genuine stock available with UAE shipping?
Genuine stock with free UAE-wide shipping is available. Call +971 6 5436933 for current pricing and availability.
Request a Quote Today
For pricing, availability or technical assistance with the Dwyer TUF-1500-BN ultrasonic BTU flowmeter, contact General Tech Services LLC.
Call: +971 6 5436933
Website: www.generaltechshop.ae
