NB-IoT Residential Ultrasonic Water Meter

Product Description

Residential ultrasonic water meter is designed for domestic water metering and displaying applications.

Nominal diameter: DN15-DN40.

Applications: Tap Water Distribution System.

Product Features

Optional communication interfaces: NB-IoT, M-BUS, RS485, LoRa Wireless, Pulse and GPRS

Low pressure drop

Automatically records the daily total of the last 2 years and monthly total of the last 24 months

Low starting flow

No moving parts, wear-free ultrasonic technology,Maintenance-free

No optical-electrical conversion needed, digital remote communication

Bi-directional flow

Conforms with GB/T 778-2007 and CJ/T 434-2013 Ultrasonic Water Meter standards

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Overall Dimensions

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Nominal Diameter DN15 DN20 DN25 DN32 DN40
L(Length of Flow Sensor) mm 165 195 225⁄260 230⁄260 245⁄300
L1(Length of Flow Sensor Plus extension pieces) mm 261 310 347⁄382 356⁄386 376⁄431
W(Width) mm 110 110 110 110 110
H1 (Open the height of the cover) mm 167 172 177 186 197
H(Height) mm 102 107 112 121 132
Pipe joint of Flow sensor G3⁄4' G1' G1 1⁄4" G1 1⁄4" G2"
Pipe Joint of Extension Pieces R1⁄2 R3⁄4" R1" R1 1⁄4" R1 1⁄2"

Technical Parameters

Nominal Diameter DN15 DN20 DN25 DN32 DN40
Q3*#40;m3⁄h) 2.5 4 6.3 10 16
R100 Q2⁄Q1(m3⁄h) 0.04 ⁄ 0.025 0.07 ⁄ 0.04 0.1 ⁄ 0.063 0.16 ⁄ 0.1 0.26 ⁄ 0.16
R160 Q2⁄Q1(m3⁄h) 0.25 ⁄ 0.016 0.04 ⁄ 0.025 0.07 ⁄ 0.04 0.1 ⁄ 0.063 0.16 ⁄ 0.1
R250 Q2⁄Q1(m3⁄h) 0.16 ⁄ 0.01 0.025 ⁄ 0.016 0.04 ⁄ 0.025 0.07 ⁄ 0.04 0.1 ⁄ 0.063
Starting Flow L⁄h 1.5 2.0 2.5 4 5
Accuracy Class Class 2
Pressure Class MAP16(MAP10, MAP25)
Envirnonmental Class C
Electromagnetic Class E1
Pressure Loss Class ▲P25 (▲P63, ▲P40)
Flow Field Sensitivity Class U5⁄D3
Temperature Rating T30 (T50, T70, T90)
Recording Automatically records the daily total of the last 2 years and monthly total of the last 24 month
Communication Interfaces Infrared, M–BUS, RS485, 4–20mA, Lora, GPRS , Pulse, NB–IoT
Power Supply DC3.6V (Non–rechargeable Lithium Battery)
Metering Cycle 1 time ⁄ S
Average Operating Current ≤20µA

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Selection Description

MTW Residential Ultrasonic Water Meter follow below order specifications:

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