1. Introduction
Dual-channel wall-mounted transit-time ultrasonic flow meters works on transit-time principle. It includes Digital TF1100-DC clamp-on ultrasonic flow meter type and High Accuracy TF1100-DI insertion ultrasonic flow meter type producted by Lanry Instruments. They are used for liquid flow measurement in fully filled pipe. Two types of transducers are sufficient to cover the most common pipe diameter ranges and materials. In addition, its optional thermal energy measurement capability makes it possible to carry out a complete analysis of thermal energy usage in any facility. Their accuracy is higher than that of the single-channel transit-time ultrasonic flow meter.
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
l Dual channels ultrasonic transit-time sensor for high accuracy 0.5%.
l Easy to install, cost effective,and require no pipe cutting or processing interrupt.
l Wide liquid temperature range: -35℃-200℃.
l Data logger function and Dynamic zero function.
l Thermal energy measurement capability can be optional.
l For commonly used pipe materials and diameters from 20mm to 5m.
l Wide bi-directional flow range of 0.01 m/s to 15m/s.
The TF1100 transit time flow meter utilizes two pairs transducers that function as ultrasonic transmitters and receivers. The transducers are installed on the outside of a closed pipe at a specific distance from each other and 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.
Unlike the Doppler Ultrasonic Flow Meter, the flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two pairs transducers and measuring the transit time that it takes for sound to travel between the two pairs transducers. The difference between the transit-time is directly and exactly related to the velocity of the liquid in the pipe
3. Wide Range of Applications
Thanks to its unique working principle, the High precision Insertion Ultrasonic Flow Meter TF1100-DI series and Clamp on Ultrasonic Flow Meter TF1100-DC series excels in many applications where traditional flow meters struggle, including:
l Water and waste water industry - hot water, cooling water, potable water, sea water,etc
l Petrochemical industry
l Chemical industry -chlorine, alcohol, acids, thermal oils, etc
l Refrigeration and air conditioning systems
l Food, beverage and pharmaceutical industry
l Power supply- nuclear power plants, thermal & hydro-power plants, heat energy boiler feed water, etc
4.In summary
To sum up, High precision Ultrasonic Flow Meter TF1100-DI series and Industrial Clamp on Ultrasonic Flow Meter TF1100-DC series stand out with 0.5% high accuracy, achieved through the transit-time principle, which significantly outperforms single-channel models. Suitable for water treatment, petrochemical, food and pharmaceutical industries as well as power supply fields, it provides reliable and convenient flow measurement solutions for diverse industrial needs.
Post time: Dec-12-2025