clamp-on digital RS485 modbus ultrasonic flowmeter

Short Description:

TF1100-EC 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. 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.

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It is the engineers and technicians' hope to measure the flow on the non-invasive pipeline reliably. Series TF1100 are state-of–the-art universal transit-time ultrasonic flow meters, fit to measure flow of full pipe line, providing a measuring system with unsurpassed accuracy, versatility, ease of installation and dependability. Although designed primarily for cleaner liquids, the flow meter is tolerant of liquids with the small amount of air bubbles or suspended solids found in most industrial environments.

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.

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	244196114mm
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℃
Suited Liquid Temperature	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

85-265VAC

24VDC

65W Solar supply

Output Selection 1

N/A

4-20mA (accuracy 0.1%)

OCT

Relay Output (Totalizer or Alarm)

RS232 Output

RS485 Output (ModBus-RTU Protocol)

Data storage fuction

GPRS

Output Selection 2

Same as above

Output Selection 3

Transducer Type

DN20-50

DN40-1000

DN1000-6000

Transducer Rail

None

DN20-50

DN40-600 (For larger pipe size, pls contact us.)

Transducer Temperature

-35～85℃ (for short periods up to 120℃)

-35～200℃ (Only for S.M sensor.)

Temperature Input Sensor

None

Clamp-on PT1000

Pipeline Diameter

DNX

e.g.DN20—20mm, DN6000—6000mm

Cable length

10m

10m (standard 10m)

Common cable Max 300m(standard 10m)

XmH

High temp. cable Max 300m

TF1100-EC

—

/LTC—

—

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.