©Copyright 2021 Dwyer Instruments, Inc. Printed in U.S.A. 2/21 DS-TUF Rev. 5 SERIES TUF | ULTRASONIC ENERGY METER ® The Series TUF Ultrasonic Energy Meter is a highly accurate and stable energy meter. It utilizes ultrasonic technology to measure heating and cooling energy consumption. The Series TUF incorporates a flowmeter, temperature meter, and a calculator into a single, compact unit. The size and lack of moving parts means the Series TUF requires minimal maintenance. The 8-digit LED display enables easy reading of the meter’s recorded values; including temperature, flow-rate, energy consumption, etc. These features make it ideal for installation on chillers, boilers, and individual apartment piping. With the optional couplings it is capable of being used with either NPT or BSPT pipe sizes. It is the perfect meter for tenant billing applications. • Lower maintenance costs with local parameter display and no moving parts • Seamless data transfer with serial communication output standard • Eliminate the need for multiple units with a flow and temperature monitor in one • Heat metering • Utilities billing • Tenant billing • Monitoring of water heating or cooling: radiators, fan coils FEATURES/BENEFITS DESCRIPTIONAPPLICATIONS ORDER ONLINE TODAY! dwyer-inst.com/Product/SeriesTUF DWYER INSTRUMENTS, INC. Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identified in this publication without notice. Dwyer advises its customers to obtain the latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current. HOW TO ORDER ACCESSORIES • Choose 1 ultrasonic energy meter model • Choose pipe fitting model given the appropriate fitting size (for DN15 to DN40 only)* Example: TUF-150-MD, Fitting Size: A, select pipe fitting Model WM-ACC-C01 or WM-ACC-C11. Note: Series TUF units are factory set for supply line installation. (Can be modified in the field via communication protocol.) Modbus ® is a registered trademark of Schneider Automation, Inc. Fitting SizePipe Fitting Model***Process Connection SizeWeight lb (kg) A A B B C C D D E E WM-ACC-C01 WM-ACC-C11 WM-ACC-C02 WM-ACC-C12 WM-ACC-C03 WM-ACC-C13 WM-ACC-C04 WM-ACC-C14 WM-ACC-C05 WM-ACC-C15 1/2˝ NPT 1/2˝ BSPT 3/4˝ NPT 3/4˝ BSPT 1˝ NPT 1˝ BSPT 1-1/4˝ NPT 1-1/4˝ BSPT 1-1/2˝ NPT 1-1/2˝ BSPT 0.6 (0.3) 0.6 (0.3) 1.2 (0.5) 1.2 (0.5) 1.8 (0.8) 1.8 (0.8) 2.3 (1.1) 2.3 (1.1) 4.4 (2) 4.4 (2) ***Each model includes 1 fitting. Ultrasonic Energy Meter Model Body Size** Pipe Size Fitting SizeCommunication Meter Connection GPM (LPM) Weight lb (kg)inmm Min Flow (Qi) Nominal Flow Range (Qp) Max Flow (Qs) TUF-150-MD TUF-200-MD TUF-250-MD TUF-320-MD TUF-400-MD TUF-500-MD* TUF-650-MD TUF-800-MD TUF-1000-MD TUF-1250-MD TUF-150-BN TUF-200-BN TUF-250-BN TUF-320-BN TUF-400-BN TUF-500-BN* TUF-650-BN TUF-800-BN TUF-1000-BN TUF-1250-BN DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4 5 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4 5 15 20 25 32 40 50 65 80 100 125 15 20 25 32 40 50 65 80 100 125 A B C D E - - - - - A B C D E - - - - - Modbus ® Modbus ® Modbus® Modbus ® Modbus® Modbus ® Modbus ® Modbus® Modbus ® Modbus® BACnet BACnet BACnet BACnet BACnet BACnet BACnet BACnet BACnet BACnet G-3/4 G1 G1-1/4 G1-1/2 G2 Flange Flange Flange Flange Flange G-3/4 G2 G1-1/4 G1-1/2 G2 Flange Flange Flange Flange Flange 0.1 (0.5) 0.2 (0.8) 0.3 (1.2) 0.5 (2) 0.9 (3) 1.3 (5) 2.2 (8.3) 3.5 (13.3) 5.3 (20) 8.8 (33) 0.1 (0.5) 0.2 (0.8) 0.3 (1.2) 0.5 (2) 0.9 (3) 1.3 (5) 2.2 (8.3) 3.5 (13.3) 5.3 (20) 8.8 (33) 6.6 (25) 11 (42) 15 (58) 26 (100) 44 (167) 66 (250) 110 (417) 176 (667) 264 (1000) 440 (1667) 6.6 (25) 11 (42) 15 (58) 26 (100) 44 (167) 66 (250) 110 (417) 176 (667) 264 (1000) 440 (1667) 13 (50) 22 (83) 31 (117) 53 (200) 88 (333) 132 (500) 220 (833) 352 (1333) 528 (2000) 881 (3333) 13 (50) 22 (83) 31 (117) 53 (200) 88 (333) 132 (500) 220 (833) 352 (1333) 528 (2000) 881 (3333) 3.1 (1.4) 3.1 (1.4) 4.1 (1.8) 5.2 (2.3) 6.6 (3) 33 (15) 10.1 (4.6) 13.5 (6.1) 16.5 (7.5) 21.1 (9.6) 3.1 (1.4) 3.1 (1.4) 4.1 (1.8) 5.2 (2.3) 6.6 (3) 33 (15) 10.1 (4.6) 13.5 (6.1) 16.5 (7.5) 21.1 (9.6) ModelPower Requirements TUF-XXX-XX TUF-XXX-XX-DC 24 VAC/VDC 24 VDC *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.DIMENSIONS AND WIRING DIAGRAMSPECIFICATIONS ServiceClean, compatible liquids. Wetted MaterialsBrass and 316L SS. RangeSee chart. Display8-digit LED. AccuracyBTU: EN1434/CJ128 Class 2; Flow: ±(2+(0.02 Qp/Q))%; Temperature: ±0.1°C. Power Requirements24 VAC/VDC (model dependent)•• or 3.6 V ER26500 lithium metal battery, user supplied and installed, battery acts as back-up if power is lost. Power Consumption1 W. Temperature LimitsAmbient: 41 to 131°F (5 to 55°C); Process: 36 to 203°F (2 to 95°C). Humidity Limit<93%. Pressure Limits232 psi (16 bar) for DN15 to DN40; 362 psi (25 bar) for >DN50. Pressure Drop<1.5 psi (10 kPa). Process ConnectionSee chart. Serial CommunicationsModbus® RTU or BACnet MSTP (selectable)•. Enclosure RatingIP65. Enclosure MaterialPlastic. RepeatabilityFlowmeter: 1%. Electric Connections3 ft (0.91 m) 4x0.2 mm2 cable with terminal block. Flow DirectionUnidirectional. Mounting OrientationHorizontal or vertical. WeightSee chart. Agency ApprovalsCE. •M-BUS available upon request. ••Power supply must be floating, not grounded. Model numbers ending in “-DC” are for DC only applications. DNXX H 4-1/4 [108.00] L [2 COMMUNICATION, 2 POWER] 4´ RETURN PIPE TEMP SENSOR 2X D THREAD 4´ FLOW PIPE TEMP SENSOR 2.8´ WATER-OUT FLOW SENSOR 2.8´ WATER-IN FLOW SENSOR 4´ 4-CORE WIRE L H ØD 4´ RETURN PIPE TEMP SENSOR 4´ 4-CORE WIRE [2 COMMUNICATION, 2 POWER] 4´ FLOW PIPE TEMP SENSOR 2.8´ WATER-OUT FLOW SENSOR 2.8´ WATER-IN FLOW SENSOR ØD2 ´N´ NO. OF HOLES [SEE TABLE] ØD1 B.C. Model Dimensions in [mm]Flow Rate GPM [LPM] Weight lb [kg]LDH Max Flow (Qs) Nominal Flow Range (Qp) Min Flow (Qi) TUF-150-XX TUF-200-XX TUF-250-XX TUF-320-XX TUF-400-XX 4-21/64 [110.00] 5-1/8 [130.00] 6-19/64 [160.00] 7-3/32 [180.00] 7-7/8 [200.00] G3/4B G1B G11/4B G11/2B G2B 3-31/32 [101.00] 3-31/32 [101.00] 4-11/64 [106.00] 4-29/64 [113.00] 4-49/64 [121.00] 13 [50] 22 [83] 31 [117] 53 [200] 88 [333] 6.6 [25] 11 [42] 15 [58] 26 [100] 44 [167] 0.1 [0.5] 0.2 [0.8] 0.3 [1.2] 0.5 [2] 0.9 [3.3] 3.1 [1.4] 3.1 [1.4] 4.1 [1.8] 5.2 [2.3] 6.6 [3.0] Model Dimensions in [mm]Flow Rate GPM [LPM] Weight lb [kg]LØDHØD1ØD2N Max Flow (Qs) Nominal Flow Range (Qp) Min Flow (Qi) TUF-500-XX TUF-650-XX TUF-800-XX TUF-1000-XX TUF-1250-XX TUF-1500-XX TUF-2000-XX 7-7/8 [200] 7-7/8 [200] 8-55/64 [225] 9-27/32 [250] 9-27/32 [250] 11-13/16 [300] 13-25/32 [350] 6-1/2 [165.00] 7-9/32 [185.00] 7-7/8 [200.00] 8-21/32 [220.00] 9-27/32 [250.00] 11-7/32 [285.00] 13-25/64 [340.00] 9-27/32 [250] 10-7/16 [265] 11-1/32 [280] 12-13/64 [310] 12-63/64 [330] 14-11/64 [360] 15-15/16 [405] 4-59/64 [125.00] 5-45/64 [145.00] 6-19/64 [160.00] 7-3/32 [180.00] 8-17/64 [210.00] 9-29/64 [240.00] 11-39/64 [295.00] 45/64 [18.00] 45/64 [18.00] 45/64 [18.00] 45/64 [18.00] 45/64 [18.00] 55/64 [22.00] 55/64 [22.00] 4 4 8 8 8 8 12 132 [500] 220 [833] 352 [1333] 528 [2000] 881 [3333] 1321 [5000] 2202 [8333] 66 [250] 110 [417] 176 [667] 264 [1000] 440 [1667] 660 [2500] 1101 [4167] 0.7 [2.5] 1.1 [4.2] 1.8 [6.7] 2.6 [10] 4.4 [17] 6.6 [25] 11 [42] 30.8 [14] 30.2 [13.7] 37.5 [17] 41.8 [19] 57.3 [26] 70.5 [32] 141 [64] INSTALLATION PIPEPIPEPIPEPIPEPIPE FILTER STRAIGHT JOINT STRAIGHT JOINT BALL VALVE BALL VALVE WATER SUPPLY UNION NUT UNION NUT 5D D BALL VALVE WATER RETURN 10D BUTTERFLY VALVE BUTTERFLY VALVE BUTTERFLY VALVE PIPEPIPE FILTER WATER SUPPLY WATER RETURN 10D 5D SUPPLY WATER TEMPERATURE SENSOR SENSOR SLEEVE RETURN WATER TEMPERATURE SENSOR D 45° MIN. 45° MIN. Installation diagram for TUF-150/400 Installation diagram for TUF-500/2000 Installation positionsMounting rotationDIMENSIONS AND WIRING DIAGRAMSPECIFICATIONS ServiceClean, compatible liquids. Wetted MaterialsBrass and 316L SS. RangeSee chart. Display8-digit LED. AccuracyBTU: EN1434/CJ128 Class 2; Flow: ±(2+(0.02 Qp/Q))%; Temperature: ±0.1°C. Power Requirements24 VAC/VDC (model dependent)•• or 3.6 V ER26500 lithium metal battery, user supplied and installed, battery acts as back-up if power is lost. Power Consumption1 W. Temperature LimitsAmbient: 41 to 131°F (5 to 55°C); Process: 36 to 203°F (2 to 95°C). Humidity Limit<93%. Pressure Limits232 psi (16 bar) for DN15 to DN40; 362 psi (25 bar) for >DN50. Pressure Drop<1.5 psi (10 kPa). Process ConnectionSee chart. Serial CommunicationsModbus® RTU or BACnet MSTP (selectable)•. Enclosure RatingIP65. Enclosure MaterialPlastic. RepeatabilityFlowmeter: 1%. Electric Connections3 ft (0.91 m) 4x0.2 mm2 cable with terminal block. Flow DirectionUnidirectional. Mounting OrientationHorizontal or vertical. WeightSee chart. Agency ApprovalsCE. •M-BUS available upon request. ••Power supply must be floating, not grounded. Model numbers ending in “-DC” are for DC only applications. DNXX H 4-1/4 [108.00] L [2 COMMUNICATION, 2 POWER] 4´ RETURN PIPE TEMP SENSOR 2X D THREAD 4´ FLOW PIPE TEMP SENSOR 2.8´ WATER-OUT FLOW SENSOR 2.8´ WATER-IN FLOW SENSOR 4´ 4-CORE WIRE L H ØD 4´ RETURN PIPE TEMP SENSOR 4´ 4-CORE WIRE [2 COMMUNICATION, 2 POWER] 4´ FLOW PIPE TEMP SENSOR 2.8´ WATER-OUT FLOW SENSOR 2.8´ WATER-IN FLOW SENSOR ØD2 ´N´ NO. OF HOLES [SEE TABLE] ØD1 B.C. Model Dimensions in [mm]Flow Rate GPM [LPM] Weight lb [kg]LDH Max Flow (Qs) Nominal Flow Range (Qp) Min Flow (Qi) TUF-150-XX TUF-200-XX TUF-250-XX TUF-320-XX TUF-400-XX 4-21/64 [110.00] 5-1/8 [130.00] 6-19/64 [160.00] 7-3/32 [180.00] 7-7/8 [200.00] G3/4B G1B G11/4B G11/2B G2B 3-31/32 [101.00] 3-31/32 [101.00] 4-11/64 [106.00] 4-29/64 [113.00] 4-49/64 [121.00] 13 [50] 22 [83] 31 [117] 53 [200] 88 [333] 6.6 [25] 11 [42] 15 [58] 26 [100] 44 [167] 0.1 [0.5] 0.2 [0.8] 0.3 [1.2] 0.5 [2] 0.9 [3.3] 3.1 [1.4] 3.1 [1.4] 4.1 [1.8] 5.2 [2.3] 6.6 [3.0] Model Dimensions in [mm]Flow Rate GPM [LPM] Weight lb [kg]LØDHØD1ØD2N Max Flow (Qs) Nominal Flow Range (Qp) Min Flow (Qi) TUF-500-XX TUF-650-XX TUF-800-XX TUF-1000-XX TUF-1250-XX TUF-1500-XX TUF-2000-XX 7-7/8 [200] 7-7/8 [200] 8-55/64 [225] 9-27/32 [250] 9-27/32 [250] 11-13/16 [300] 13-25/32 [350] 6-1/2 [165.00] 7-9/32 [185.00] 7-7/8 [200.00] 8-21/32 [220.00] 9-27/32 [250.00] 11-7/32 [285.00] 13-25/64 [340.00] 9-27/32 [250] 10-7/16 [265] 11-1/32 [280] 12-13/64 [310] 12-63/64 [330] 14-11/64 [360] 15-15/16 [405] 4-59/64 [125.00] 5-45/64 [145.00] 6-19/64 [160.00] 7-3/32 [180.00] 8-17/64 [210.00] 9-29/64 [240.00] 11-39/64 [295.00] 45/64 [18.00] 45/64 [18.00] 45/64 [18.00] 45/64 [18.00] 45/64 [18.00] 55/64 [22.00] 55/64 [22.00] 4 4 8 8 8 8 12 132 [500] 220 [833] 352 [1333] 528 [2000] 881 [3333] 1321 [5000] 2202 [8333] 66 [250] 110 [417] 176 [667] 264 [1000] 440 [1667] 660 [2500] 1101 [4167] 0.7 [2.5] 1.1 [4.2] 1.8 [6.7] 2.6 [10] 4.4 [17] 6.6 [25] 11 [42] 30.8 [14] 30.2 [13.7] 37.5 [17] 41.8 [19] 57.3 [26] 70.5 [32] 141 [64] INSTALLATION PIPEPIPEPIPEPIPEPIPE FILTER STRAIGHT JOINT STRAIGHT JOINT BALL VALVE BALL VALVE WATER SUPPLY UNION NUT UNION NUT 5D D BALL VALVE WATER RETURN 10D BUTTERFLY VALVE BUTTERFLY VALVE BUTTERFLY VALVE PIPEPIPE FILTER WATER SUPPLY WATER RETURN 10D 5D SUPPLY WATER TEMPERATURE SENSOR SENSOR SLEEVE RETURN WATER TEMPERATURE SENSOR D 45° MIN. 45° MIN. Installation diagram for TUF-150/400 Installation diagram for TUF-500/2000 Installation positionsMounting rotation©Copyright 2021 Dwyer Instruments, Inc. Printed in U.S.A. 2/21 DS-TUF Rev. 5 SERIES TUF | ULTRASONIC ENERGY METER ® The Series TUF Ultrasonic Energy Meter is a highly accurate and stable energy meter. It utilizes ultrasonic technology to measure heating and cooling energy consumption. The Series TUF incorporates a flowmeter, temperature meter, and a calculator into a single, compact unit. The size and lack of moving parts means the Series TUF requires minimal maintenance. The 8-digit LED display enables easy reading of the meter’s recorded values; including temperature, flow-rate, energy consumption, etc. These features make it ideal for installation on chillers, boilers, and individual apartment piping. With the optional couplings it is capable of being used with either NPT or BSPT pipe sizes. It is the perfect meter for tenant billing applications. • Lower maintenance costs with local parameter display and no moving parts • Seamless data transfer with serial communication output standard • Eliminate the need for multiple units with a flow and temperature monitor in one • Heat metering • Utilities billing • Tenant billing • Monitoring of water heating or cooling: radiators, fan coils FEATURES/BENEFITS DESCRIPTIONAPPLICATIONS ORDER ONLINE TODAY! dwyer-inst.com/Product/SeriesTUF DWYER INSTRUMENTS, INC. Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identified in this publication without notice. Dwyer advises its customers to obtain the latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current. HOW TO ORDER ACCESSORIES • Choose 1 ultrasonic energy meter model • Choose pipe fitting model given the appropriate fitting size (for DN15 to DN40 only)* Example: TUF-150-MD, Fitting Size: A, select pipe fitting Model WM-ACC-C01 or WM-ACC-C11. Note: Series TUF units are factory set for supply line installation. (Can be modified in the field via communication protocol.) Modbus ® is a registered trademark of Schneider Automation, Inc. Fitting SizePipe Fitting Model***Process Connection SizeWeight lb (kg) A A B B C C D D E E WM-ACC-C01 WM-ACC-C11 WM-ACC-C02 WM-ACC-C12 WM-ACC-C03 WM-ACC-C13 WM-ACC-C04 WM-ACC-C14 WM-ACC-C05 WM-ACC-C15 1/2˝ NPT 1/2˝ BSPT 3/4˝ NPT 3/4˝ BSPT 1˝ NPT 1˝ BSPT 1-1/4˝ NPT 1-1/4˝ BSPT 1-1/2˝ NPT 1-1/2˝ BSPT 0.6 (0.3) 0.6 (0.3) 1.2 (0.5) 1.2 (0.5) 1.8 (0.8) 1.8 (0.8) 2.3 (1.1) 2.3 (1.1) 4.4 (2) 4.4 (2) ***Each model includes 1 fitting. Ultrasonic Energy Meter Model Body Size** Pipe Size Fitting SizeCommunication Meter Connection GPM (LPM) Weight lb (kg)inmm Min Flow (Qi) Nominal Flow Range (Qp) Max Flow (Qs) TUF-150-MD TUF-200-MD TUF-250-MD TUF-320-MD TUF-400-MD TUF-500-MD* TUF-650-MD TUF-800-MD TUF-1000-MD TUF-1250-MD TUF-150-BN TUF-200-BN TUF-250-BN TUF-320-BN TUF-400-BN TUF-500-BN* TUF-650-BN TUF-800-BN TUF-1000-BN TUF-1250-BN DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4 5 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4 5 15 20 25 32 40 50 65 80 100 125 15 20 25 32 40 50 65 80 100 125 A B C D E - - - - - A B C D E - - - - - Modbus ® Modbus ® Modbus® Modbus ® Modbus® Modbus ® Modbus ® Modbus® Modbus ® Modbus® BACnet BACnet BACnet BACnet BACnet BACnet BACnet BACnet BACnet BACnet G-3/4 G1 G1-1/4 G1-1/2 G2 Flange Flange Flange Flange Flange G-3/4 G2 G1-1/4 G1-1/2 G2 Flange Flange Flange Flange Flange 0.1 (0.5) 0.2 (0.8) 0.3 (1.2) 0.5 (2) 0.9 (3) 1.3 (5) 2.2 (8.3) 3.5 (13.3) 5.3 (20) 8.8 (33) 0.1 (0.5) 0.2 (0.8) 0.3 (1.2) 0.5 (2) 0.9 (3) 1.3 (5) 2.2 (8.3) 3.5 (13.3) 5.3 (20) 8.8 (33) 6.6 (25) 11 (42) 15 (58) 26 (100) 44 (167) 66 (250) 110 (417) 176 (667) 264 (1000) 440 (1667) 6.6 (25) 11 (42) 15 (58) 26 (100) 44 (167) 66 (250) 110 (417) 176 (667) 264 (1000) 440 (1667) 13 (50) 22 (83) 31 (117) 53 (200) 88 (333) 132 (500) 220 (833) 352 (1333) 528 (2000) 881 (3333) 13 (50) 22 (83) 31 (117) 53 (200) 88 (333) 132 (500) 220 (833) 352 (1333) 528 (2000) 881 (3333) 3.1 (1.4) 3.1 (1.4) 4.1 (1.8) 5.2 (2.3) 6.6 (3) 33 (15) 10.1 (4.6) 13.5 (6.1) 16.5 (7.5) 21.1 (9.6) 3.1 (1.4) 3.1 (1.4) 4.1 (1.8) 5.2 (2.3) 6.6 (3) 33 (15) 10.1 (4.6) 13.5 (6.1) 16.5 (7.5) 21.1 (9.6) ModelPower Requirements TUF-XXX-XX TUF-XXX-XX-DC 24 VAC/VDC 24 VDC *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.Next >