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Introduction

Principle & Structure

When the ultrasonic beam propagates in the liquid, the flow of the liquid will cause a small change in the propagation time, and the change of the propagation time is proportional to the flow rate of the liquid, and the relationship is in accordance with the following expression:


in

θ is the angle between the sound beam and the liquid flow direction

M is the number of straight-line propagation of the sound beam in the liquid

D is the inner diameter of the pipe

TUP is the propagation time of the sound beam in the positive direction

Tdown is the propagation time of the sound beam in the opposite direction

△T=Tup-Tdown

Features

● Two-channel high-precision design of shunt layer above DN50

● Protection class IP68

● Built-in quantitative controller, time-sharing accumulator

● Automatically start the controller at the set time to realize automatic timed quantitative water supply or quantitative irrigation.

● The time-sharing accumulation of traffic is carried out within the set time period, and the gradient rate has been realized.

● Calorie measurement

● Optional dual-channel PT1000 temperature measurement function, can realize heat measurement, suitable for air conditioning and refrigeration industry.

● Ultrasonic measurement, no rotating, no wearing parts

● Long-term guarantee of measurement accuracy, high reliability of the whole machine.

● Applicable to a variety of water quality, including water containing gravel and weeds.

technical parameter

Measuring fluidFull pipe of water, sewage, seawater (other liquids need to be customized)
fluid temperature0-30°C(0-160℃)
working environmentTemperature: -10-45℃; Humidity≤100%(RH)
Under pressure1.6Mpa (2.5Mpa optional)
Upstream Fluency Sensitivity LevelU3
Downstream Fluency Sensitivity LevelD0
Electromagnetic Compatibility LevelClass E2
Communication InterfaceRS485/M-BUS/IR
output signalTwo isolated OCT or TTL pulse outputs/one two-wire 4-20mA
Power supplyBuilt-in lithium battery (3.6V, 19Ah)/external DC8~36V DC power supply/2-wire 4-20mA power supply
Protection classIP68 can work under water up to 2 meters
local displayDouble-line display includes 9-digit totalizer, 4-digit instantaneous flow, and various status prompts and units
data storageUsing EEPROM/FLASH to store parameters, automatically record the cumulative flow of the first 512 days in the first 128 months
Current measurement cycleMeasurement state: 1 time/sec; Verification state: 4 times/sec
Power consumptionThe battery can be used continuously for more than 10 years
Wetted materialDN15-DN40 Brass (Stainless Steel)
DN50-DN150 Ductile Iron (Stainless Steel)
DN200-DN300 carbon steel (stainless steel)

Selection table

FU50-Pipeline ultrasonic flowmeter (ultrasonic water meter) (online)
FU50E-Clamp-on ultrasonic flowmeter (ultrasonic water meter) (portable non-pipeline)

The way to

DN15 diameter, threaded connection, external thread G3/4

DN20 diameter, threaded connection, external thread G1

DN25 diameter, threaded connection, external thread G1 1/4

DN32 diameter, threaded connection, external thread G1 1/2

DN40 diameter, threaded connection, external thread G2

DN50 diameter, flange connection, 16bar

DN65 diameter, flange connection, 16bar

DN80 diameter, flange connection, 16bar

DN100 diameter, flange connection, 16bar

DN125 diameter, flange connection, 16bar

DN150 diameter, flange connection, 16bar

DN200 diameter, flange connection, 16bar

DN250 diameter, flange connection, 16bar

DN300 diameter, flange connection, 16bar

Output signal and power supply type

3.6V lithium battery (only for display selection)

RS485 DC8~36V

4-20mA DC24V

M-Bus Remote Meter Reading System (symphonic mbus)

Optional signal

no option

TTL level pulse output

2-way normally open signal

Wetted body material

Brass alloy construction UNI EN 12165 CW617N

Ductile Iron

carbon steel

Stainless steel 1.4301(304)

(special option) VARIO

No customization

Protocol customization function
The complete data of this selection table, please contact the sales staff or email to sales@kewill-auto.cn for complete samples.
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Next:FU90 Ultrasonic Open Channel Flowmeter
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