Best-Selling Ultrasonic Doppler Blood Flow Meter - JEF-200 Ultrasonic Flowmeter for water and liquid –

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Best-Selling Ultrasonic Doppler Blood Flow Meter - JEF-200 Ultrasonic Flowmeter for water and liquid – Detail:

Portfolio

Visible

Visible LCD digital Display Current/total flow

IP65

IP65 IPS67 ABS/Metal Instrument enclosure

ABS

ABS electrical interface Waterproof Dustproof

Fully

Fully automatic SMT chip circuit Stable and durable

Clamp

Clamp-on type/ Insertion type

Product Description

JEF-200 ultrasonic flowmeter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation.

Ultrasonic flow meters use sound waves as a reliable, accurate and maintenance free method to measure the velocity of a fluid from which the volumetric flow rate can be calculated. They feature no moving parts making them more reliable and accurate while providing maintenance-free operation. Since ultrasonic signals can also penetrate solid materials, the transducers can be mounted onto the outside of the pipe offering completely non-invasive measurement eliminating chemical compatibility issues, pressure restrictions, and pressure loss.

Swimming against the flow requires more power and more time than swimming with the flow. This simple fact is the basis for ultrasonic flow measurement according to the “differential transit time” method: This method uses two sensors, set opposite each other in the measuring tube. Each sensor can alternately transmit and receive ultrasonic signals, while simultaneously measuring the signal transit time.

As soon as the fluid in the tube starts to flow, the signals are accelerated in the direction of flow but delayed in the opposite direction. The differential transit time, measured by the two sensors, is directly proportional to the flow rate.

Product Details

JEF-201

JEF-201 Wall-mounted plastic case type

JEF-202

JEF-202 Wall-mounted metal case type

JEF-203

JEF-203 Module type

JEF-204

JEF-204 Portable handy type

Type	JEF-201 Wall-mounted plastic case type; JEF-202 Wall-mounted metal case type; JEF-203 Module type; JEF-204 Portable handy type
Transducer	Clamp on	TS- 2TM- 1; TL- 1
	High-temp Clamp on	TS-2-HT; TM-1-HT; TL-1-HT
	Insertion	TC- 1T; C- 2
	Pipe	G3; G2; G1
Nominal Diameter	DN __________mm
Pipe Material	0-Carbon Steel; 1-Stainless steel; 2-Cast iron; 3-Copper; 4-Cement pipe; 5-Aluminum; 6-PVC; 7-Glass steel
Cable length	mm
Temperature Transducer	CT- 1; TCT- 1; PCT- 1; SCT- 1
SD Card	0-YES1-NO

Example: JEF201-TM-1-DN300-0- 10m- PCT- 1+0

PS: Standard confirguration = Wall-mounted plastic case type (convertor)+ TM- 1 (transducer)+ 5 M cable + PCT- 1(temperature transducer)+ SD Card

Benefits and Application

● Measurement independent of pressure, density, temperature, conductivity and viscosity (for homogeneous fluids)

● Free pipe cross-section, no pressure loss

● No moving parts, minimum maintenance and upkeep

● Long service life, no abrasion or corrosion from the fluid

● In-line or clamp-on design for stationary or temporary flow measurements

● Ultrasonic flow meter is high reliability of flow meter, widely used in petroleum, chemical industry, food, electricity, water supply and drainage, etc.

Features

● High Reliability: Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability.

● Wide measuring range: Several types transducer for selection, pipe size from Dn15mm to Dn6000mm.

● 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 etc.

● Powerful Recording Function: Automatically record the following data, The totalizer data of the last 512 days/128 months/10 years, The time and corresponding flow rate of the last 64 times of power on and off events, The working status of the last 32 days.

● Support Heat Measurement: Connect the temperature transducer , can finish the heat/energy measurement.

● Support SD card Memory: Optional SD card.

Optional Transducers

Types	Picture	Spec.	Model	Measurement Range	Temperature	Dimension
Clamp on		Small Size	TS- 2	DN15~ DN100	-30~ 90℃	64×39×44mm
		Medium Size	TM- 1	DN50~ DN700	-30~ 90℃	97×54×53mm
		Large Size	TL- 1	DN300~ DN6000	-30~ 90℃	45×25×32mm
High temp Clamp on		Small Size	TS-2-HT	DN15~ DN100	-30~ 160℃	64×39×44mm
		Medium Size	TM-1-HT	DN50~ DN700	-30~ 160℃	97×54×53mm
		Large Size	TL-1-HT	DN300~ DN6000	-30~ 160℃	190×80×55mm
Insertion		Standard	TC- 1	DN80~ DN6000	-30~ 160℃	335×80×55mm
Insertion		Lengthen	TC- 2	DN80~ DN6000	-30~ 160℃	64×39×44mm
Pipe		Π type	G3	DN15~ DN25	-30~ 160℃
		Standard	G2	DN32/ DN40	-30~ 160℃
		Standard	G1	DN50~ DN6000	-30~ 160℃

Optional Temperature Transducers

Picture	Specification	Model	Meas. Range	Temperature	Cut of water	Accuracy
	Clamp on temperature Transducer Pt100	CT- 1	≥DN50	- 40~ 160℃	No	100℃±0. 8℃
	Insertion temperature Transducer Pt100	TCT- 1	≥DN50	- 40~ 160℃	Yes
	Insertion Pt100 Installation with pressure	PCT- 1	≥DN50	- 40~ 160℃	No
	Insertion Pt100 Small pipe diameter	SCT- 1	＜DN50	- 40~ 160℃	Yes

Specifications

Measuring Medium	Type of Liquid	Single liquid can transmit sound wave, Water (hot water, chilled water, city water, sea water, waste water, etc.), Sewage with small particle content; Oil ( crude oil, lubricating oil, diesel oil, fuel oil, etc.); Chemicals ( alcohol, etc.); Plant effluent; Beverage, Ultra- pure liquids
	Temperature	- 30~ 160℃
	Turbidity	No more than 10000ppm and less bubble
	Flowrate	0~±7m/ s
Accuracy	±1%
Display	2×20 character LCD with backlight, support Chinese, English and Italy
Caliber range	DN15-200
Signal Output	1 way 4~ 20mA output, electric resistance 0~ 1K
	1 way OCT pulse output( Pulse width 6 ~ 1000 ms, 200 ms default)
	1 way Relay output
Signal Input	3 way 4~ 20mA input, accuracy 0. 1%，acquisition signal such as temperature, press and liquid level
	Connect the temperature transducer Pt100, can finish the heat/energy measurement
Data Interface	Insulate Rs485 serial interface, upgrade the flowmeter software by computer, support the MODBUS
Pipe Condition	Pipe Material	Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed
	Pipe Diameter	15~ 6000mm
	Straight Pipe	Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump
Working Environment	Temperature	Convertor：- 20~ 60℃；Flow Transducer：- 30~ 160℃
	Humidity	Convertor: 85% RH；Flow Transducer：can measure under water, water depth≤2m（tansducer sealed glue）
Power Supply	DC8~ 36V or AC85~ 264V（optional）
Power	1. 5W
Dimension	20515470cm(convertor)

Optional SD card

The SD card (most expanded to 2GB) can achieve data storing, reading and processing issues by replacing manual writing or no-paper recording instrument.

In addition, the SD card measurements data can be adopted by our company’s “JEF Flow data analysis & statistic” Software which includes tabulation, statistical, data analysis, printing reports, production flow curve and other functions.