1. Introduction
The TUF-2000M Ultrasonic Flow Meter provides accurate liquid flow measurement from outside a pipe. It employs state-of-the-art ultrasonic transmission and receiving, digital signal processing, and transit-time measurement technologies. Its proprietary signal quality tracking and self-adapting techniques ensure optimal performance across various pipe materials. This non-intrusive clamp-on design simplifies installation, eliminating the need to break pipelines, preventing pressure drops, leaks, contamination, and corrosion. The TUF-2000M is widely used in industries such as petroleum, chemical, metallurgical, power, water supply and drainage, and for monitoring industrial production and drainage networks.
NOTE: A host unit can connect to only one sensor pair at a time.
2. Product Components
The TUF-2000M Ultrasonic Flow Meter kit typically includes the following items:
- Ultrasonic Flowmeter Host Unit
- Clamp-on Flow Sensors (TS-2, TM-1, or TL-1 depending on model)
- Steel Strips for sensor mounting
- Signal Cable
- Couplant (Note: Couplant is colloid and may not be shipped internationally; please prepare it yourself.)
- User Manual
3. Specifications
| Feature | Description |
|---|---|
| Product Name | Ultrasonic flow meter / flow sensor |
| Measuring Medium | Pure water, tap water, hot water, methanol, alcohol, beverage, etc., virtually all commonly used liquids (full pipe). |
| Medium Flow Rate | 0 ~ ±10m/s |
| Measuring Accuracy | Linearity: 0.5% Repeatability: 0.2% Accuracy: better than 1% |
| Input Signals | 3-way 4-20mA input (accuracy 0.1%, for temperature, pressure, liquid level) 2-way PT100 temperature signal input (for heat/energy measurement) |
| Output Signals | 1-way 4-20mA output (electric resistance 0~1K, accuracy 0.1%) 1-way OCT pulse output 1-way relay output |
| Data Interface | Isolated RS485 serial interface, supports MODBUS, software upgrade via computer. |
| Power Supply | DC24V, AC85-265V (optional) |
| Display | LCD backlight display |
| Sensor Type | External clamp-on, insertion, inline |
| Pipeline Size | DN15 ~ DN6000mm |
| Pipeline Material | All metals, most plastics, fiberglass, etc. Allows pipe liner. |
| Cable | Shielded sensor cable. Standard length 15' (5m), extendable to 1640' (500m). |
| Ambient Temperature | Host: -20℃ ~ 60℃ Sensor: -30℃ ~ 90℃ (Normal Temp), -30℃ ~ 160℃ (High Temp) |
4. Installation
Proper installation is crucial for accurate measurement. The TUF-2000M supports various installation methods depending on the sensor type and application.
4.1 Host Unit Installation
The host unit can be installed in a wall-mount, panel-mount, or fixed-mount configuration. Ensure the installation location is free from excessive vibration and within the specified ambient temperature range.
4.2 Sensor Installation
The TUF-2000M offers Clamp-on, Insertion, Inline, and Bracket installation methods. Each method has specific requirements and advantages.
4.2.1 Clamp-on Installation
- Can measure almost all clean & unadulterated & non-corrosive liquids.
- Directly ties the sensor to the outer surface of the measured pipeline, no need to break the pipeline, easy to install.
- Applicable to pipe caliber DN15-DN6000.
- Ensure the pipe surface is clean and apply couplant evenly between the sensors and the pipe.
4.2.2 Insertion Installation
- Can be installed simply by cutting 2 mounting holes in the surface of the pipe, allowing for non-stop-water installation.
- Can measure liquids from -30°C to 160°C.
- The insertion type sensor is recommended when measuring pipe measurements with thick scaling.
4.2.3 Inline Installation
- Requires cutting apart the pipeline.
- Mono or tri channels sensor available.
- High measurement accuracy, no pressure loss.
4.2.4 Bracket Installation
- Installs a magnetic bracket sensor on the outer wall of the pipeline.
- No need to break the pipeline, no flow interruption, no pressure loss.
- Applicable to pipe caliber DN32-DN700.
4.3 Sensor Placement Methods (V-method and Z-method)
The choice of sensor placement method depends on the pipe diameter and signal strength requirements.
4.3.1 V-method Installation
The V-method is a standard installation method, easy to use and accurate for pipe diameters about DN15-400mm. Align the center line of the two sensors horizontally with the pipeline axis.
4.3.2 Z-method Installation
The Z-method is the most commonly used installation method, characterized by direct transmission of ultrasonic waves in pipelines without reflection (known as single path) and minimal signal attenuation loss. It can measure pipe diameters ranging from 100mm to 6000mm. For pipelines larger than 200mm, the Z-method should be used to obtain the maximum signal.
4.4 Wiring Diagram
Connect the sensors and power to the host unit according to the wiring diagram provided. Ensure all connections are secure and correct to prevent damage to the device or inaccurate readings.
5. Operation
Once installed and powered, the TUF-2000M host unit's LCD backlight display will show flow measurements. Use the MENU, arrow, and ENT buttons to navigate through the interface and configure settings. The device can output data via 4-20mA, OCT pulse, or relay outputs, and communicate via RS485 MODBUS for integration with other systems.
6. Maintenance
- Sensor Cleaning: Periodically check and clean the surface of the clamp-on sensors and the corresponding pipe area to ensure good acoustic coupling. Reapply couplant if necessary.
- Cable Inspection: Inspect all cables and connections regularly for any signs of wear, damage, or corrosion. Ensure they are securely fastened.
- Environmental Conditions: Ensure the host unit and sensors operate within their specified ambient temperature ranges. Protect the equipment from extreme weather conditions, direct sunlight, and excessive moisture.
- Software Updates: If available, update the flowmeter software via the RS485 interface to ensure optimal performance and access to new features.
7. Troubleshooting
- No Display/Power: Check the power supply (DC24V or AC85-265V) and ensure all power connections are secure.
- Inaccurate Readings:
- Verify sensor placement and alignment according to the V-method or Z-method diagrams.
- Ensure sufficient couplant is applied between sensors and pipe.
- Check for air bubbles or debris inside the pipe that might interfere with ultrasonic signals.
- Confirm that the pipe material and diameter settings in the host unit match the actual pipeline.
- No Output Signal: Check the wiring for 4-20mA, OCT, and relay outputs. Verify the configuration settings for these outputs in the host unit.
- Communication Issues (RS485): Ensure RS485 wiring is correct and the communication parameters (baud rate, parity, data bits) match the connected system.
8. User Tips
- For optimal accuracy with clamp-on sensors, ensure the pipe surface is smooth and free of rust, paint, or other coatings where the sensors are mounted.
- When selecting sensor type, consider the pipe diameter and fluid temperature. High-temperature sensors (HT models) are necessary for fluids above 90°C.
- Always refer to the detailed installation diagrams for precise sensor spacing and alignment to achieve the best signal quality.
9. Warranty and Support
For any technical assistance, warranty claims, or support inquiries, please contact the seller or manufacturer directly. Ensure you have your product model and purchase details ready for faster service.
