TUF Clamp On Ultrasonic Flow Meter
The Apure TUF is a clamp-on ultrasonic flow meter for measuring liquid flow through a full pipe. Transducers mount on the outside of the pipe and measure the difference in upstream and downstream sound travel times.
- External pipe mounting
- Transit-time measurement
- Sensor selection for the pipe and liquid
Transit-time measurement
The meter uses the difference between upstream and downstream transit times to estimate liquid velocity. It uses the configured pipe cross-section to calculate volumetric flow. Confirm that the liquid provides a usable acoustic path under the operating conditions.
Pipe and transducer selection
Provide the pipe outside diameter, wall thickness, pipe material and any lining. Add the liquid, normal and limiting temperatures, expected flow range and required outputs. Select the matched transducers and mounting arrangement from the documentation for the supplied unit.
Installation and commissioning
Use a full pipe section and verify the required straight runs, transducer spacing, acoustic couplant and signal quality. Gas bubbles, solids, poorly bonded liners or uneven pipe surfaces can weaken the signal. For energy measurement, confirm the compatible temperature sensors and calculator option with the supplied configuration.
The listed values retain the published entries. Confirm the selected sensor and electronics configuration, the test conditions behind the accuracy entry, and incomplete recording and input descriptions before use.
| Brand | Apure |
|---|---|
| Model | TUF |
| Measurement range | 0~±10m/s |
| Accuracy | flow rate is better than ±1% |
| Display | 2 x 10 Chinese backlit characters or 2 x 20 character LCD display |
| Flow direction | Positive and negative two-way metering, and measure positive, negative |
| Data interface | RS485 serial turbulence, can be upgraded by PC computer, support MODBUS and other protocols |
| Data recording | positive/negative/net accumulations at 512 days, 128 months and 10 |
| Signal output | 1 channel 4-20mA current output 1 relay output |
| Signal input | 3 channels of 4-20mA analog input, accuracy 01%, can collect pressure, liquid level, warm sleep and other signals |
Other published references to confirm
| Pipe size | 15 to 30m (1/2″ to 18″) as listed. Confirm the correct diameter units and limits. |
|---|---|
| Transducer temperature | Up to 160°C (320°F) in the previous overview. Confirm the supplied transducer version. |
| Power supply | Ac85~264V or Dc8~36V as listed. Confirm the ordered electronics. |
| Temperature sensing | PT10 in the previous overview and two three-wire PT100 sensors in the parameter list. Confirm the temperature input and probe type. |
| Straight-run references | Upstream 10, downstream 5 and pump outlet 300 (D is the diameter) as listed. Confirm the required run lengths for this arrangement. |
| Medium condition | ≤ 2000pm and small bubble content as listed. Confirm the intended unit and applicability. |
| Pulse output reference | One OCT output, 6~100ms programmable pulse width and default 200ms as listed. Confirm the available settings. |
| Display and data recording | Chinese, English and Italian are listed. The recording entries include 512 days, 128 months, 10 days and more than 30 events. Confirm what each period or count describes. |
