TF1100-EC Wall-mounted Transit Time Ultrasonic Flow meter works on the transit-time method. The clamp-on ultrasonic transducers (sensors) are mounted on the external surface of the pipe for non-invasive and non-intrusive flow measurement of liquid and liquefied gasses in fully filled pipe. Three pairs of transducers are sufficient to cover the most common pipe diameter ranges. In addition, its optional thermal energy measurement capability makes it possible to carry out a complete analysis of thermal energy usage in any facility.
This flexible and easy to use flow meter is the ideal tool for the support of service and maintenance activities. It can also be used for the control or even for the temporary replacement of permanently installed meters.
Transit Time ultrasonic flow meter measure the time it takes for an ultrasonic signal transmitted from one transducer to cross a pipe and be received by a second transducer.Upstream and downstream time measurements are compared. Without liquid flowing, the transit time would be equal in both directions.Together with liquid flowing, the sound will travel faster in the direction of flow and slower against the flow.High accuracy 1% ultra flow meter required is quite typical when two transducers could be mounted on a pipe section with evenly distributed flow.Because the accoustic signal must cross the pipe to a receiving transducer, the fluid is just for pure water or a little dirty water ,and don't contain a significant concentration of bubbles or solids ( for wastewater treatment you could choose another type ultrasonic flowmeter Doppler effect).Otherwise the high frequency sound will be attenuated and too weak to traverse the pipe.
As for application of this type wall mounting ultrasonic flow meters include potable water, cooling water, hot water,sea water,salt water ,treated water ,water glycol solutions, hydraulic chemicals liquids and so forth.
Features
Non-invasive transducers are easy to install, cost effective, and require no pipe cutting or processing interrupt.
Wide liquid temperature range: -35℃~200℃.
Data logger function.
Thermal energy measurement capability can be optional.
For commonly used pipe materials and diameters from 20mm to over 6000m.
Wide bi-directional flow range of 0.01 m/s to 12 m/s.
Specificaitons
Transmitter:
| Measurement principle | Ultrasonic transit-time difference correlation principle |
| Flow velocity range | 0.01 to 12 m/s, bi-directional |
| Resolution | 0.25mm/s |
| Repeatability | 0.2% of reading |
| Accuracy | ±1.0% of reading at rates >0.3 m/s);±0.003 m/s of reading at rates<0.3 m/s |
| Response time | 0.5s |
| Sensitivity | 0.003m/s |
| Damping of displayed value | 0-99s(selectable by user) |
| Liquid Types Supported | both clean and somewhat dirty liquids with turbidity <10000 ppm |
| Power Supply | AC: 85-265V DC: 24V/500mA |
| Enclosure type | Wall-mounted |
| Degree of protection | IP66 according to EN60529 |
| Operating temperature | -20℃ to +60℃ |
| Housing material | Fiberglass |
| Display | 4 line×16 English letters LCD graphic display, backlit |
| Units | User Configured (English and Metric) |
| Rate | Rate and Velocity Display |
| Totalized | gallons, ft³, barrels, lbs, liters, m³,kg |
| Thermal energy | unit GJ，KWh can be optional |
| Communication | 4~20mA(accuracy 0.1%),OCT, Relay, RS232, RS485 (Modbus),data logger |
| Security | Keypad lockout, system lockout |
| Size | 244*196*114mm |
| Weight | 2.4kg |
Transducer:
| Degree of protection | IP65 according to EN60529.(IP67 or IP68 Upon request) |
| Suited Liquid Temperature | Std. Temp.: -35℃~85℃ for short periods up to 120℃ |
| High Temp.: -35℃~200℃ for short periods up to 250℃ | |
| Pipe diameter range | 20-50mm for type S, 40-1000mm for type M, 1000-6000mm for type L |
| Transducer Size | Type S 48(h)*28(w)*28(d)mm |
| Type M 60(h)*34(w)*32(d)mm | |
| Type L 80(h)*40(w)*42(d)mm | |
| Material of transducer | Aluminum (standard temperature), and peek (high temperature) |
| Cable Length | Std:10m |
| Temperature Sensor | Pt1000 Clamp-on Accuracy: ±0.1% |
Configuration Code
| TF1100-EC | Wall-mounted Transit-time Clamp-on Ultrasonic Flowmeter | |||||||||||||||||||||||
| Power supply | ||||||||||||||||||||||||
| A | 85-265VAC | |||||||||||||||||||||||
| D | 24VDC | |||||||||||||||||||||||
| S | 65W Solar supply | |||||||||||||||||||||||
| Output Selection 1 | ||||||||||||||||||||||||
| N | N/A | |||||||||||||||||||||||
| 1 | 4-20mA (accuracy 0.1%) | |||||||||||||||||||||||
| 2 | OCT | |||||||||||||||||||||||
| 3 | Relay Output (Totalizer or Alarm) | |||||||||||||||||||||||
| 4 | RS232 Output | |||||||||||||||||||||||
| 5 | RS485 Output (ModBus-RTU Protocol) | |||||||||||||||||||||||
| 6 | Data storage fuction | |||||||||||||||||||||||
| 7 | GPRS | |||||||||||||||||||||||
| Output Selection 2 | ||||||||||||||||||||||||
| Same as above | ||||||||||||||||||||||||
| Output Selection 3 | ||||||||||||||||||||||||
| Transducer Type | ||||||||||||||||||||||||
| S | DN20-50 | |||||||||||||||||||||||
| M | DN40-1000 | |||||||||||||||||||||||
| L | DN1000-6000 | |||||||||||||||||||||||
| Transducer Rail | ||||||||||||||||||||||||
| N | None | |||||||||||||||||||||||
| RS | DN20-50 | |||||||||||||||||||||||
| RM | DN40-600 (For larger pipe size, pls contact us.) | |||||||||||||||||||||||
| Transducer Temperature | ||||||||||||||||||||||||
| S | -35～85℃ (for short periods up to 120℃) | |||||||||||||||||||||||
| H | -35～200℃ (Only for S.M sensor.) | |||||||||||||||||||||||
| Temperature Input Sensor | ||||||||||||||||||||||||
| N | None | |||||||||||||||||||||||
| T | Clamp-on PT1000 | |||||||||||||||||||||||
| Pipeline Diameter | ||||||||||||||||||||||||
| DNX | e.g.DN20—20mm, DN6000—6000mm | |||||||||||||||||||||||
| Cable length | ||||||||||||||||||||||||
| 10m | 10m (standard 10m) | |||||||||||||||||||||||
| Xm | Common cable Max 300m(standard 10m) | |||||||||||||||||||||||
| XmH | High temp. cable Max 300m | |||||||||||||||||||||||
| TF1100-EC | — | A | — | 1 | — | 2 | — | 3 | /LTC— | M | — | N | — | S | — | N | — | DN100 | — | 10m | (example configuration) | |||
Applications
● Service and maintenance
● Replacement of defective devices
● Support of commissioning process and installation
● Performance and efficiency measurement
- Evaluation and assessments
- Capacity measurement of pumps
- Monitoring of regulating valves
● Water and waste water industry - hot water, cooling water, potable water, sea water etc.)
● Petrochemical industry
● Chemical industry -chlorine, alcohol, acids, .thermal oils.etc
● Refrigeration and air conditioning systems
● Food , beverage and pharmaceutical industry
● Power supply- nuclear power plants, thermal & hydropower plants), heat energy boiler feed water.etc
● Metallurgy and mining applications
● Mechanical engineering and plant engineering-pipeline leak detection, inspection, tracking and collection.
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