Ultrasonic Flow Meters

20+ Years Manufacturing Experience

dual-channel ultrasonic flow meter 4-20mA

Short Description:

TF1100-DC Dual-channel Wall-mounted Transit Time Ultrasonic Flowmeter 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. Two 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.


TF1100-DC Dual-channel Wall-mounted Transit Time Ultrasonic Flowmeter 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. Two 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.

Features

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Dual channel non-invasive transducers to ensure high accuracy 0.5% of the flow meter.

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Easy to install, cost effective, and require no pipe cutting or processing interrupt.

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Wide liquid temperature range: -35℃~200℃.

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Data logger function.

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Aluminum or Stainless steel SUS304 sensors for your optional.

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Thermal energy measurement capability can be optional.

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For commonly used pipe materials and diameters from 20mm to 6.0m.

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Wide bi-directional flow range of 0.01 m/s to 15 m/s.

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.

Specifications

Transmitter:

Measurement principle

Ultrasonic transit-time difference correlation principle

Flow velocity range

0.01 to 15 m/s, bi-directional

Resolution

0.1mm/s

Repeatability

0.15% of reading

Accuracy

±0.5% 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

0.001m/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

 -10℃ to +60℃

Housing material

Fiberglass

Display

4.3’’ color LCD 5 lines display, 16 keys

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, RS485 (Modbus),data logger

Security

Keypad lockout, system lockout

Size

244*196*114mm

Weight

2.4kg

Transducer:

Degree of protection

Standard IP65; IP67, IP68 can be optional

Suited Liquid Temperature

-35℃~200℃

Pipe diameter range

20-50mm for type B, 40-4000mm for type A

Transducer Size

Type A    46(h)*31(w)*28(d)mm
Type B    40(h)*24(w)*22(d)mm

Material of transducer

Aluminum or Stainless steel SUS304

Cable Length

Std:10m

Temperature Sensor

Pt1000, 0 to 200℃, Clamp-on and Insertion type   Accuracy: ±0.1%

Principle of measurement

The TF1100 ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed pipe. The transducers are a non-invasive, clamp-on type, which will provide benefits of non-fouling operation and easy installation.

The TF1100 transit time flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific distance from each other.  The transducers can be mounted in V-method where the sound transverses the pipe twice, or W-method where the sound transverses the pipe four times, or in Z-method where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once.  This selection of the mounting method depends on pipe and liquid characteristics.  The flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers. The difference between the transit-time is directly and exactly related to the velocity of the liquid in the pipe, as shown in below Figure.

pro1
pro2
pro3

Dimensional Sketches

Transmitter:

Transmitter1
Transmitter2
Transmitter3

Transducer:

Transducer1

B   40(h)*24(w)*22(d)mm}
A   46(h)*31(w)*28(d)mm

Configuration Code

pro12

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