TUF-2000S Wall-mounted Ultrasonic Flow meter for DN15 ~ DN6000
Working Principle
The time-difference method is usually used, where an external clamp-on sensor emits and receives ultrasonic waves, measures the difference in propagation time of the ultrasonic waves in the fluid in the downstream and upstream directions, and then calculates the fluid flow velocity. Combined with parameters such as the pipe's cross-sectional area, the flow rate can be determined.
Product Features
- A. Easy Installation, User-Friendly Interaction
High Visibility: Once wall-mounted, operators can read the large LCD screen at eye level and view real-time data such as instantaneous flow, cumulative flow, flow velocity, and signal strength.
Convenient Operation: Buttons or touchscreens are positioned at wall height, making it easy to set parameters on-site, navigate menus, and troubleshoot without climbing pipes or using ladders.
Flexible Wiring: Sensor cables can be laid along wall grooves, neat and aesthetically pleasing, meeting industrial site management requirements.
B. Powerful Functional Integration
Multiple Outputs: Typically equipped with 4-20mA current output (remote transmission to PLC/DCS), pulse output (total counting), and relay alarm output (upper and lower limit alarms).
Communication Interfaces: Built-in RS485 (Modbus RTU), M-Bus, and even Ethernet/Wi-Fi/4G modules, easily connecting to SCADA systems or IoT cloud platforms for remote monitoring.
Data Recording: High-end models come with large-capacity storage (such as SD card or internal Flash), automatically recording historical flow data (daily/monthly/yearly reports), supporting USB export for trade settlement and energy consumption audits.
Heat Calculation (Optional): When equipped with a temperature sensor, it can be directly used as an ultrasonic heat meter to calculate cold/heat energy, commonly used in HVAC systems.
C. Environmental Adaptability and Safety
Protection Level: Standard configurations are usually IP65 (water spray-proof) or IP67 (short-term immersion-proof), and some explosion-proof models can reach Ex d IIB T4, suitable for hazardous areas.
Interference Resistance: Internal circuits are designed with strict electromagnetic compatibility (EMC) measures, resisting electromagnetic interference from variable frequency drives, motors, and other industrial equipment to ensure stable measurements.
Wide Temperature Operation: Suitable for ambient temperatures from -20℃ to 60℃ (or even wider).
D. Measurement Performance (Inheriting Ultrasonic Characteristics)
No Flow-Blocking Components: When used with clamp-on sensors, there is no pressure loss in the pipeline.
High Range Ratio: Can reach over 1:100, suitable for conditions with large flow fluctuations.
Bidirectional Measurement: Simultaneously measures forward and reverse flow.
Product detail

Technical Specifications
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Accuracy |
Better than ±1% |
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Repeatability |
Better than 0.2% |
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Principle |
Transit-time measuring principle |
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Measurement |
500ms |
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Display |
LCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc. |
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Output |
Analogue output: 4-20mA or 0-20mA current output. Impedance 0∼1kW. Accuracy 0.1%. |
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OCT output: Frequency signal (1~9999HZ) |
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Relay output: over 20 source signal (no signal, reverse flow etc.) |
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RS485 serial port |
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Input |
Three analogue input |
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Three-wire PT100 resistor input (optional) |
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Other functions |
Automatically record the totaliser data of the last 64 days / 64 months / 5 years; |
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pipe material |
Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP etc. Liner is allowed |
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pipe Size |
15-6000mm |
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pipe Straight pipe section |
in the upstream it must be beyond 10D, in the downstream it must be beyond 5D, in the upstream the length must be beyond 30D from |
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Liquid Types |
Water, sea water, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single |
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Liquid Temperature |
Standard: -30 ℃ - 90 ℃ ,High-temperature:-30 ℃ - 160 ℃ |
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Liquid Turbidity |
Less than 10000ppm, with a little bubble |
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Flow Direction |
Bi-directional measuring, net flow/heat measuring |
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Environment Temperature |
Main Unit: -30 ℃ - 80 ℃ |
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Transducer: -40℃ -110℃, Temperature transducer: select on enquiry |
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Environment Humidity |
Main Unit: 85% RH |
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Transducer: water-immersible, water depth less than 3m |
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Cable |
Twisted Pair Line, standard length of 20m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable |
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Power Supply |
AC220V or DC24V |
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Power Consumption |
Less than 1.5W |
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Protocols |
MODBUS, M-BUS, Fuji extended protocol and other factory protocol |

















