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Last Updates: 28/11/2020

Dwyer Series TUF Ultrasonic Energy Meter

The Dywer Series TUF Ultrasonic Energy Meter is a highly accurate and stable energy meter that utilizes ultrasonic technology to measure heating and cooling energy consumption. The Series TUF is a compact meter with a flowmeter and energy calculator in one, making it great for installation on chillers and boilers.

INSTRUCTIONS FOR ORDERING
• Choose 1 ultrasonic energy meter model (includes 2 BSPP pipe fittings, 2 tightening nuts, 2 o-rings, and 1 thermowell with welding collar)
• Choose 1 pipe fitting model given the appropriate fitting size if NPT or BSPT connections are required (for DN15 to DN40 only)*
Example: TUF-150-MD, Fitting Size: A, select pipe fitting Model WM-ACC-C01 or WM-ACC-C11.

Product Applications

  • Heat metering
  • Utilities billing
  • Tenant billing
  • Monitoring of water heating or cooling: radiators, fan coils

Service : Clean, compatible liquids.

Wetted Materials : Brass and 316L SS.

Range : See chart on catalog page.

Display : 8-digit LED.

Accuracy : BTU: EN1434/CJ128 Class 2; Flow: ±(2+(0.02 Qp / Q))%; Temperature: ±0.1°C.

Power Requirements : 24 VDC/VAC (sku dependent) or 3.6 V ER26500 lithium metal battery, user supplied and installed, battery acts as back-up if power is lost.

Power Consumption : 1 W.

Temperature Limits : Ambient: 41 to 131°F (5 to 55°C); Process: 36 to 203°F (2 to 95°C).

Humidity Limit : <93%.

Pressure Limits : 232 psi (16 bar) for DN15 to DN40; 362 psi (25 bar) for >DN50.

Pressure Drop : <1.5 psi (10 kPa).

Process Connection : See chart on catalog page.

Serial Communications : Modbus® RTU or BACnet MSTP (selectable)**.

Enclosure Rating : IP65.

Enclosure Material : Plastic.

Repeatability : Flowmeter: 1%.

Electrical Connections : 3′ (0.91 m) 4×0. 2 mm2 cable with terminal block.

Flow Direction : Unidirectional.

Mounting Orientation : Horizontal or vertical.

Weight : See chart on catalog page.

Agency Approvals : CE.

**M-BUS available upon request.

  • Lower maintenance costs with local parameter display and no moving parts
  • Serial communication output allows for easy transfer of data
  • Flow and temperature monitor in one unit eliminates the need for multiple units

Manuals: MODBUS Registry Tables
Catalog Pages: Series TUF Catalog Page
Product Data Sheet: TUF Datasheet

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