Ultrasonic Flowmeter TFM4100W

Ultrasonic Flowmeter TFM4100W measures flow rate by calculating the spreading time of an ultrasonic wave in a liquid, going upstream and downstream into a pipe.

This flow meter is mostly used to measure the flow rate of homogeneous fluids, also with a quite high percentage of suspended solids.

Product Description

Ultrasonic Flowmeter TFM4100W measures flow rate by calculating the spreading time of an ultrasonic wave in a liquid, going upstream and downstream into a pipe.

This flow meter is mostly used to measure the flow rate of homogeneous fluids, also with a quite high percentage of suspended solids.

Ultrasonic transducers mount on the outside of plastic or metal pipes to measure flow rate of clean, non-aerated fluids like water, chemicals, and oils. The clamp on transducers can be mounted without shutting down flow. There is no pressure drop and no obstruction. Transducer separation distance is calculated by the flowmeter according to pipe diameter and wall thickness.

Use the external keypad for fast, easy calibration with menu selection of pipe diameter, wall thickness, pipe material, liner material, liner thickness, liquid type, mounting method, and measurement units (gallons, liters etc.) Calibration values and totalizer are retained during power interruptions.

High accuracy measuring: Linearity: better than 0.5% Repeatability: better than 0.2%, Accuracy: better than ± 1%
Wide measuring range: Several types of transducers to be selected, measuring pipe sizes from DN15mm to DN6000mm with three different types of sensors
Power supply: 8….36 VDC or 10….30VAC
Grade of Protection: Grade of Protection is IP65
Small Size: 128x47x34mm
Set-Up: By external keypad or by software via RS485
Output: RS485 and 4…20mA
Protocol: M-BUS and MODBUS

Water treatment, slurry and process water pumping
Flow balancing
Hydro-electric, cooling, anti-fire stations
Water District
Oil and chemical industries
Extraction industries
Food, paper and pharmaceutical industries
Car industries

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General Specifications

Operating: For clean liquids in a full pipes with Less than 1 % solids or gas bubbles, particles
Configuration: with external keypad (By the process according to the terms of)

Transmitter

Accuracy: ±1% of reading value, Linearity ±0.5 % , Repeatability: ± 0.2%
Power Supply: 24 VDC
Outputs: 4-20 mA, RS485 Serial Port
Communication: MODBUS, M-BUS
Operating Temp.: -20...50°C
Protection: IP65

Transducer Specifications

Protection: IP68
Pipe Materials: Any metal or plastic sonic conducting material including carbon steel, stainless steel, ductile iron, cast iron, PVC, PVDF, fiberglass, copper, brass, aluminum and pipes with bonded liners including epoxy, rubber and Teflon
Transducer and Operating Ranges ; -30…+90°C (TL-1,TM-1,TS-2) High temperature transducer ; -30…+160°C (HTM-1, HTS-1)
Transducer Moun. Kit: Includes set of stainless steel pipe clamps, coupling compound
Cable Length: Standart 6 m

Ultrasonic Flowmeter TFM4100W Brochure

Download File

The TFM4100-W Flowmeter works by measuring the “transit time” or “time of flight” for ultrasonic sound pulses transmitted from one transducer to another. Depending on the mounting configuration, the signal may cross the pipe once, twice or four mes. The me between transmitted and received signals is precisely measured by the flow meter. Ultrasonic signals are sent upstream and then down stream with the transducers alternating their functions as transmitters/receivers. The transit me in the direction of flow is always faster than the transit me against the flow. By comparing these differences with precision timing circuits, the TFM4100-W is able to accurately calculate the flow rate. Because the ultrasonic signal is forced to cross the pipe, an average of the flow profile is calculated. So compensation for laminar or turbulent flow is automatic.