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TUF-2000F Wall-mounted non-contact Ultrasonic Flow meter for AC220V or DC24V

An ultrasonic flow meter is a non-contact / clamp-on flow instrument that measures fluid flow based on the propagation characteristics of ultrasound. It features no pressure loss, a wide range of applicable media, and easy installation, making it widely used in both industrial and civilian fluid measurement scenarios.The flow sensor installed in the pipe wall to complete the measurement of the flow rate. measurement features.

Wall-mounted ultrasonic flowmeters are particularly suitable for the following scenarios:
Water supply network monitoring stations: at the entrances of residential areas or main meters of plants of water supply companies, requiring long-term fixed monitoring and meter reading.
Central air conditioning machine rooms: energy measurement of chilled water/cooling water systems, with the main unit mounted on the wall of the machine room for easy inspection by property personnel.
Sewage treatment plants: flow monitoring at inlet pump stations and outlet discharge points, with a humid environment requiring a high protection level.
Industrial process control rooms: batching rooms in chemical, petroleum, and pharmaceutical plants, serving as local display instruments to assist process adjustments.
Energy audits and energy-saving renovations: fixed measurement points needed by enterprises for water balance tests or energy consumption assessments.

product details

Working Principle

The transit-time ultrasonic flow meter is based on the physical characteristic that the propagation speed of ultrasound in a fluid is affected by the flow velocity. The instrument installs a pair of sensors on both sides of the pipe, alternately transmitting and receiving ultrasound. When the ultrasound propagates downstream, the sound speed adds to the flow speed, shortening the propagation time; when propagating upstream, the sound speed counteracts the flow speed, lengthening the propagation time.

A high-precision timing circuit accurately measures the time difference between downstream and upstream propagation. This time difference is strictly proportional to the average flow velocity of the fluid: the faster the flow, the greater the time difference; when the fluid is stationary, the time difference is zero. The instrument's microprocessor, combined with user input parameters such as pipe diameter and material, converts the time difference into the instantaneous flow velocity through temperature compensation and flow field correction algorithms, and then multiplies it by the pipe cross-sectional area to obtain the volumetric flow rate.

This method has no mechanical moving parts and causes no pressure loss. It is particularly suitable for high-precision bidirectional measurement of clean liquids such as water and oil, making it the mainstream choice for industrial process control and trade settlement.

Product Features

High Accuracy
Wide measuring range ，Several types transducer for selection , pipe size from DN15 mm to DN6000 mm.
High Reliability Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability.
Strong Anti-interference Dual-balance signal differential receiver/ driver circuit to avoid interference of converter, TV tower, high voltage line.

Product detail

Technical Specifications

Accuracy	Better than ±1%
Repeatability	Better than 0.2%
Principle	Transit-time measuring principle
Measurement Period	500ms
Display	LCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc.
Output	Analogue output: 4-20mA or 0-20mA current output. Impedance 0∼1kW. Accuracy 0.1%.
	OCT output: Frequency signal (1~9999HZ)
	Relay output: over 20 source signal (no signal, reverse flow etc.)
	RS485 serial port
Input	Three analogue input
Input	Three-wire PT100 resistor input (optional)
Other functions	Automatically record the totaliser data of the last 64 days / 64 months / 5 years; The power-on time and corresponding flow rate of the last 64 power on and off events. Allow manual or automatic flow loss compensation The instrument working status of the last 64 days
pipe material	Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP etc. Liner is allowed
pipe Size	15-6000mm
pipe Straight pipe section	in the upstream it must be beyond 10D, in the downstream it must be beyond 5D, in the upstream the length must be beyond 30D from the access of the pump. (D stands for pipe diameter)
Liquid Types	Water, sea water, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single uniform liquid
Liquid Temperature	Standard: -30 ℃ - 90 ℃ ,High-temperature:-30 ℃ - 160 ℃
Liquid Turbidity	Less than 10000ppm, with a little bubble
Flow Direction	Bi-directional measuring, net flow/heat measuring
Environment Temperature	Main Unit: -30 ℃ - 80 ℃
Environment Temperature	Transducer: -40℃ -110℃, Temperature transducer: select on enquiry
Environment Humidity	Main Unit: 85% RH
	Transducer: water-immersible, water depth less than 3m
Cable	Twisted Pair Line, standard length of 20m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable requirement. RS-485 interface, transmission distance up to 1000m
Power Supply	AC220V or DC24V
Power Consumption	Less than 1.5W
Protocols	MODBUS, M-BUS, Fuji extended protocol and other factory protocol