Ultrasonic Water Meter

Ultrasonic Water Meter

Ultrasonic remote water meter is used to measure and control the total volume of water flowing through the tap waterpipe.It adopts the ultrasonic time difference principle,low power consumption,high performance,easy installation,accurate measurement,stable operation,long service life,safe and reliable.All parameters meet the national standards”GBjT7 78-2018″and CJT 434-2013 “Ultrasonic Water Meter”and other standards.

Features

.It adopts wired communication and wireless Internet of Things remote two-way transmission.There are two types withbattery and without battery.It can realize remote reading and remote control functions(remaining amount,cumulativeusage,valve status,battery status,interference,control valve switch),high data transmission efficiency and low cost.

.The temperature sensor adopts PT1000 platinum resistance paired temperature sensor,equipped with high-precisionAD circuit to achieve high-precision temperature measurement.

.MCU uses ultra-low power microprocessor with fast computing speed,high precision,low power consumption andstrong anti-electromagnetic interference ability;

.It has self-diagnosis,fault display,power-off data protection and power shortage alarm functions.When the watermeter fails,the fault code is displayed and the current data is automatically saved;

.Equipped with LCD display,simple operation,complete and accurate display data,convenient and fast data reading;

.One-piece structure,beautiful appearance,the display can be rotated horizontally and flipped vertically,easy to read,single-button design,simple operation,the display screen can rotate 360 degrees horizontally and 180 degrees vertically,easy to install;

.There are no moving parts or flow-blocking parts in the ultrasonic water meter pipeline.There is almost no additionalpressure loss during measurement;

.Complete interfaces,wired expandable M-BUS interface,RS-485 bus interface,wireless communication can select dataremote transmission and centralized control through NB-loT,4G,LoRa transmission mode;

.Adopt dual-channel rechargeable battery external power supply design,independent battery compartment,convenient battery replacement,battery power consumption <10uA standby when powered by battery withoutcommunication,if with communication,it can be in real-time standby communication for several months;

.Easy to install and maintain,with dustproof,lakeproof,waterproof,anti-disassembly,anti-vandalism and otherfunctions.

 

Main Parameter

Nominal diameter (mm) Q3/Q1 Common flow Q3 m3/h Length Width Hight Connection thread D Connection flange
mm Flange outer diameter(mm) Bolt hole center circle diameter (mm) Connection bolt
DN15 250 2.5 225 93 90 G3/4B
DN20 4.0 290 93 90 G1B
DN25 6.3 325 93 90 G11/4B
DN32 10 375 G11/2B
DN40 16 415 G2B
DN50 40 200 165 125 165 125 4xM18
DN65 63 200 175 170 175 170 4xM18
DN80 63 225 185 185 185 185 8xM18
DN100 100 250 220 180 220 180 8xM18
DN125 160 250 230 230 230 230 8xM18
DN150 250 300 285 240 285 240 8xM22
DN200 400 350 340 295 340 295 12xM22
DN250 400 450 405 355 12xM24
DN300 630 500 460 410 12xM24

 

Maximum allowable error:

The maximum allowable error of high zone flow(Q2≤Q≤Q4)is ±2% when the water temperature range is 0.1℃~30℃,and ±3% when the water temperature is higher than 30℃.

The maximum allowable error of low zone flow(Q1≤Q≤Q2)is ±5%,regardless of the water temperature range.

 

Technical Parameter

Item Detail
Accuracy level Level 2
Working pressure ≤1.6MPa
Pressure loss level △P25
Working humidity 4~95%RH
Temperature level T30,T90,default T30
Measured medium Water,uniform liquid and full pipe
Installation environment E1 Class C
Data communication interface RS-485,M-bus,NB-loT,4G,LoRa
Built-in battery working life 3.6V high-energy lithium battery,working for more than 6 years
Number of sound paths Multi-channel can be used for DN50 and above
Display 8-digit LED liquid display
Range ratio R125.R150,R200,R250,default value is R200