Ultrasonic Meter Type

Water Meter, Residential

uFlow 340 SERIES (DN15-40)

1. Introduction

The uFlow 340W series compact type ultrasonic water is an innovative flow meter with static flow sensor based on the ultrasonic measuring principle. It utilizes ultrasonic measuring methodology and microprocessor technology. All calculation and flow measuring circuits are designed on one single board, thus offering exceptional accuracy and reliability.

2. Features

  • Water temperature detection, low temperature alarm
  • Abnormal water usage alarm
  • Low starting flow rate, minimum flow rate is 1/3 traditional water meter
  • High-precision machining centers, initiating action to prevent the occurrence of product non-conformity, stable and reliable
  • Adaptable to inferior water quality, low in maintenance cost
  • Ultrasonic signal quality detection
  • Low initial flow rate and min. flow velocity measured is 0.002m/s
  • No mechanical moving parts, long service life
  • Ultra low power consumption, battery life of over 10 years (DN15-40) & 6 years (DN50-600); less then 0.0008W
  • Support optical, RS485 and M-BUS (wired & wireless) communication interface
  • Complies to MODBUS RTU and EN13575 communication protocol
  • IP68 design

3. Application

  • Residential water meter
  • Tenant billing

4. Dimensions

Nominal Diameter (mm) 15 20 25 32 40
Dimension (mm) L 165 190 195 260 225 260 300
L1 97 97 97 97 97
L2 255 290 295 360 325 360 400
H 91 91 91 128 139
H1 31 28 25 29 36
W 90 90 90 90 90
Screw Thread G3/4 B G1B G1 1/4 B G1 1/2 B G2B
Screw Thread Coupling R1/2 R¾ R1 R1 ¼ R1 ½
Maximum flow rate Q4 (m³/ h) 3.13 5 7.875 12.5 20
Nominal flow rate Q3 (m³/ h) 2.5 4 6.3 10 16
Transitional flow rate Q2 (m³/ h) 0.016 0.026 0.04 0.064 0.102
Minimum flow rate Q1 (m³/ h) 0.01 0.016 0.025 0.04 0.064
Starting flow reference (m³/ h) 0.002 0.002 0.005 0.007 0.011
Pressure Loss Δp40
Working Pressure 1.6MPa
Qp:Qi 250:1 ( 80:1, 100:1, 160:1, 400:1 can be customized)

5. Technical Specification

SPECIFICATIONS – Calculator
Display LCD, 8 digits
Instantaneous flow, Flow volume
Approval

MID
Language English
Temperature Class T30, T50, T70 optional
Power Supply 3.6V lithium battery
Battery Lifetime

≥10 years
Environment & Mechanical Condition Class C (Class B, Class I optional)
Electromagnetic Compatibility E1 (Class E2 optional)
Ambient Storage Temperature -20°C ~ +70°C
Installation Horizontal or vertical
Communication Modbus, M-bus, optical, pulse
IP Rating

IP65, IP68 (upon request)
Accuracy

Class 2

For more information, please download the full brochure here