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ESMTUF2000B clamp-on Ultrasonic Flow meter for 4-20mA /rs485 output

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 metering of chilled water/cooling water systems, with the main unit mounted on the wall of the machine room for easy inspection by property personnel.
Wastewater treatment plants: flow monitoring at influent pump rooms and effluent discharge points, with a humid environment requiring a high protection level.
Industrial process control rooms: batching rooms in chemical, petroleum, and pharmaceutical plants, used as local display instruments to assist in process adjustments.
Energy audits and energy-saving renovations: fixed measurement points required by enterprises for water balance testing or energy consumption assessment.

product details

Working Principle

The time-difference method is usually used, where an external clamp-on sensor emits and receives ultrasonic waves, measures the difference in propagation time of the ultrasonic waves in the fluid in the downstream and upstream directions, and then calculates the fluid flow velocity. Combined with parameters such as the pipe's cross-sectional area, the flow rate can be determined.

Product Features

1. The wall-mounted ultrasonic flow meter is an ideal choice for fixed flow monitoring in industrial sites.
2. It perfectly combines the non-contact, high-precision advantages of ultrasonic technology with the wall-mounted structure's features of easy reading, easy maintenance, and easy networking.
3. For scenarios that require long-term data accumulation, remote transmission, and on-site manual inspection, it is a cost-effective solution.

Product detail

Technical Specifications

Items		Specifications
Main unit	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
	Size	15-6000mm
	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
	Temperature	Standard: -30C - 90C ,High-temperature:-30C - 160C
	Turbidity	Less than 10000ppm, with a little bubble
	Flow Direction	Bi-directional measuring, net flow/heat measuring
Environment	Temperature	Main Unit: -30C - 80C
	Temperature	Transducer: -40℃ -110℃, Temperature transducer: select on enquiry
	Humidity	Main Unit: 85% RH
	Humidity	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