series-tuf
tuf-500

Dwyer Ultrasonic Energy & Flowmeter

$ 464.00–$ 1,722.00

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Pipe Fittings

Choose 1 pipe fitting (for DN15 to DN40 only)*

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Product Description

Energy monitoring capability, no moving parts, compact and light weight.

THE 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.

FEATURES/BENEFITS

  • Lower maintenance costs with local parameter display
  • Serial communication output allows for easy transfer of data
  • Flow and temperature monitor in one unit eliminates the need for multiple units

UNITS
Energy is displayed in kW•h, power is displayed in kW, flow volume is displayed as m3,
flow-rate is displayed in m3/h, and temperature in °C.

Models

Ultrasonic Energy Meter Model Pipe Size † Communication Process Connection Weight lb(kg)
TUF-150-MD DN15 Modbus® G-3/4 3.1 (1.4)
TUF-200-MD DN20 Modbus® G1 3.1 (1.4)
TUF-250-MD DN25 Modbus® G1-1/4 4.1 (1.8)
TUF-320-MD DN32 Modbus® G1-1/2 5.2 (2.3)
TUF-400-MD DN40 Modbus® G2 6.6 (3)
TUF-500-MD* DN50 Modbus® Flange 33 (15)
TUF-150-BN DN15 BACnet® G-3/4 3.1 (1.4)
TUF-200-BN DN20 BACnet® G1 3.1 (1.4)
TUF-250-BN DN25 BACnet® G1-1/4 4.1 (1.8)
TUF-320-BN DN32 BACnet® G1-1/2 5.2 (2.3)
TUF-400-BN DN40 BACnet® G2 6.6 (3)
TUF-500-BN* DN50 BACnet® Flange 33 (15)
* A pipe fitting is required to use the DN15 to DN40 energy meters. The DN50 has a flange connection and does
not require a pipe fitting.
† For additional sizes up to 8″ (203.2 mm) contact factory.

Specifications

Service:
Clean, compatible liquids.
Wetted Materials:
Brass and 316L SS.
Range:
See Chart.
Display:
8-digit LED.
Accuracy:
BTU: EN1434/CJ128 Class 2; Flow: ±(2+(0.02 Qp / Q))%; / Q))%; Temperature: ±0.1°C.
Power Requirements:
24 VAC/VDC or 3.6 V ER26500 lithium metal battery, user supplied and installed, battery acts as back-up if power is lost.
Power Consumption:
1W
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.
Outputs:
Pulse (standard)
Serial Communications:
Modbus® RTU or BACnet® MSTP (selectable)**.
Enclosure Rating:
IP65.
Enclosure Material:
Plastic.
Repeatability:
Flowmeter: 1%.
Electrical Connections:
3 ft (0.91 m) 4×0.2 mm2 cable with terminal block. Flow Direction: Unidirectional.
Mounting Orientation:
Horizontal or vertical.
Weight:
See chart.
Agency Approvals:
CE

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