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.

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.

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 (model 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) 4x0.2 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.

ModelDescriptionTUF-1000-MDTenant ultrasonic BTU flowmeter, DN100 pipe size and 60 m3/h permanent flow rate with Modbus® communication.TUF-1250-MDTenant ultrasonic BTU flowmeter, DN125 pipe size and 100 m3/h permanent flow rate with Modbus® communication.TUF-1500-MDTenant ultrasonic BTU flowmeter, DN150 pipe size and 150 m3/h permanent flow rate with Modbus® communication.TUF-150-MDTenant ultrasonic BTU flowmeter, DN15 pipe size and 1.5 m3/h permanent flow rate with Modbus® communication.TUF-2000-MDTenant ultrasonic BTU flowmeter, DN200 pipe size and 200 m3/h permanent flow rate with Modbus® communication.TUF-200-MDTenant ultrasonic BTU flowmeter, DN20 pipe size and 2.5 m3/h permanent flow rate with Modbus® communication.TUF-250-MDTenant ultrasonic BTU flowmeter, DN25 pipe size and 3.5 m3/h permanent flow rate with Modbus® communication.TUF-320-MDTenant ultrasonic BTU flowmeter, DN32 pipe size and 6 m3/h permanent flow rate with Modbus® communication.TUF-400-MDTenant ultrasonic BTU flowmeter, DN40 pipe size and 10 m3/h permanent flow rate with Modbus® communication.TUF-500-MDTenant ultrasonic BTU flowmeter, DN40 pipe size and 15 m3/h permanent flow rate with Modbus® communication.TUF-650-MDTenant ultrasonic BTU flowmeter, DN65 pipe size and 25 m3/h permanent flow rate with Modbus® communication.TUF-800-MDTenant ultrasonic BTU flowmeter, DN80 pipe size and 40 m3/h permanent flow rate with Modbus® communication.