Ultrasonic Energy Meters Series TUF

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Product information

The Dwyer Series TUF Ultrasonic Energy Meter utilizes transit-time technology to provide accurate and non-invasive flow and thermal energy measurement, ideal for chilled water, hot water, and building energy management systems.

✔ High Precision Accuracy: Flow measurement error within ±0.5% to ±1% depending on flow velocity range

✔ Communication Interfaces: Supports common industrial protocols including Modbus RTU and BACnet MS/TP

✔ Durable Design: Robust 304 Stainless Steel body with a clear LCD display for easy parameter monitoring

✔ Multiple Outputs: Integrated pulse output, 4-20 mA analog signal, and PT100/PT1000 temperature sensors

✔ Versatile Applications: Suitable for pipe sizes ranging from DN15 to DN2000 with flange or threaded options

DOWNLOAD SERIES TUF CATALOG (PDF)

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Technical characteristics
Name of the product
Standard technical document

Detailed Specifications

Brand	DWYER (USA)
Service	Clean water or compatible heat transfer liquids
Accuracy (Flow)	±1% of reading (at velocity range > 0.5 m/s)
Accuracy (Energy)	Meets EN1434 Class 2
Pressure Limits	PN16 or PN25 (model dependent)
Temperature Limits	39 to 203°F (4 to 95°C)
Output Signal	Pulse, 4-20 mA (optional)
Communication	BACnet MS/TP, Modbus® RTU, or M-Bus
Enclosure Rating	IP65 or IP68 (model dependent)
Power Requirements	24 VAC/VDC or Battery (up to 10-year life)

Model CHART Series TUF (Ultrasonic Energy Meter)

Model	Body Size	Communication
TUF-150-MD	DN15	Modbus® RTU
TUF-200-MD	DN20	Modbus® RTU
TUF-250-MD	DN25	Modbus® RTU
TUF-320-MD	DN32	Modbus® RTU
TUF-400-MD	DN40	Modbus® RTU
TUF-500-MD	DN50	Modbus® RTU
TUF-650-MD	DN65	Modbus® RTU
TUF-800-MD	DN80	Modbus® RTU
TUF-1000-MD	DN100	Modbus® RTU
TUF-1250-MD	DN125	Modbus® RTU
TUF-150-BN	DN15	BACnet MS/TP
TUF-200-BN	DN20	BACnet MS/TP
TUF-250-BN	DN25	BACnet MS/TP
TUF-320-BN	DN32	BACnet MS/TP
TUF-400-BN	DN40	BACnet MS/TP
TUF-500-BN	DN50	BACnet MS/TP
TUF-650-BN	DN65	BACnet MS/TP
TUF-800-BN	DN80	BACnet MS/TP
TUF-1000-BN	DN100	BACnet MS/TP
TUF-1250-BN	DN125	BACnet MS/TP