Ultrasonic Meter Type

Water Meter

uFlow 350W SERIES (DN15-300)

1. Introduction

The uFlow 350W series 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

  • Double beam ultrasonic sensors for high accuracy and reliable operation
  • Less than 0.01 m/s starting velocity
  • Multi line 9 digital LCD accumulative flow and 4 digital for instantaneous flow
  • Automatic power saving function under the empty pipe or long-term fluid stationary state
  • IP68 protection, ensure long-term operation though water in the inside meter
  • Date cumulative record and data acquisition function
  • Various kinds of communication interface:TTL levels pulse output and USART interface,convenient to connect the low power consumption equipment; RS485; Infrared
    communication interface; support CJ-188 communication
  • Support MODBUS,M-BUS ,HART communication protocol
  • Output: Two way isolated pulse output(pulse equivalent and output pulse can be arbitrary programmed); two-wired system 4-20mA output
  • With the two way PT1000 temperature transducer, which can realize the heat measurement
  • Built-in batch controller and time accumulator
  • Various of Units selected, including Cubic meter, USA gallon, Cubic feet and Liter
  • Built-in Lithium battery for 6 years life

3. Application

  • Residential water meter
  • District water meter
  • Tenant billing

4. Display and Operation

5. Communication and Signal Output

* There are 4 terminals Available

Standard Configuration:

  1. RS485+ (A)
  2. RS485- (B)
  3. DC8~30V
  4. GND

Optional:

  1. OCT 1
  2. OCT 2
  3. C1 (TTL output 1)
  4. C2 (TTL output 2)
  5. 2 wired 4-20mA (Also function as external power supply 24V DC)

NOTE: When ordering, you may choose any two of the above output or interface, lead to the external junction.

6. Dimensions

DN15 – 40

Size (mm) Pressure MPa Dimension
L(mm) H1(mm) H2(mm) W1(mm) W2(mm) Screw Thread Screw Thread Coupling
15 1.6 110 17.5 168 58 90 G3/4B R1/2
20 130 24 173 58 90 G1B R3/4
25 160 25 175 58 90 G1 1/4B R1
32 180 31 177 58 90 G1 1/2B R1 1/4
40 200 31 181 58 90 G2B R1 1/2

DN15 – 40

 

Size (mm) Pressure MPa Dimension Flange Dimension
L(mm) H1(mm) H2(mm) W1(mm) W2(mm) Flange Diameter D Bolt Center D1 Bolt hole x Quantity Ф x n Sealing Surface Flange Thickness C
50 1.6  200  70  131 76 95 165 125 18×4 102 2 19
65 1.6   200  75  135 79 95 185 145 18×4 122 2 20
80  1.6  225  94  132 94 95 200 160 18×4 138 2 20
100  1.6  250  104  140 104 104 220 180 18×4 158 2 22
125  1.6  275  117  148 117 117 250 210 18×4 188 2 22
150  1.6  300  134  155 114 114 285 240 18×4 212 2 24
200  1.6 350  165 254 165 165 340 295 22×12 268 2 26
250  1.6  450  197 269 197 197 405 355 26×12 320 2 29
300  1.6  500 223 287 223 223 460 410 26×12 370 2 32

7. Flow Range

Size (mm) Ratio Flow (m3/h)
Starting Flowrate Minimum Flowrate Q1 Transitional Flowrate Q2 Permanent Flowrate Q3 Overload Flowrate Q4
15 200 0.003 0.0125 0.02 2.5 3.125
20 200 0.0035 0.016 0.026 3.2 4
25 200 0.007 0.02 0.032 4 5
32 200 0.01 0.032 0.05 6.3 7.875
40 200 0015 0.1 0.16 20 25
50 100 0.03 0.4 0.64 40 50
66 100 0.059 0.63 1.008 63 78.75
80 100 0.064 1 1.6 100 125
100 100 0.094 1.6 2.56 160 200
125 100 0.12 2 3.2 200 250
150 100 0.27 2.5 4 250 312
200 100 0.315 4 6.4 400 500
250 100 0.508 4 6.4 400 500
300 100 0.77 6.3 10.08 630 787.5

8. Technical Specification

PARAMETER SPECIFICATIONS
Medium

Water, Sewage, Seawater (Other types of liquid need customization)
Medium Temperature

0.1~30°C

Working Environment

Temperature: ‐10~45°C; Humidity≤100%(RH)

Working Pressure

1,6MPa (2.5MPa optional)

The Sensitivity of Upstream

U3

The Sensitivity of Downstream

D0

Climatic and Mechanical

C class

Electromagnetic Compatibility Class

E2 class

Communication Interface

RS485 / USART / Infrared

Output Signal

Two way OCT pulse output/ TTL pulse output/ One way 4-20mA output

Power Supply

Built-in Lithium battery (3.6, 19AhV) / DC8~36V power supply

Protection Class

IP68, can work 2 meters under water
Display

Multi line 9 digits accumulative flow,

4 digital display for instantaneous flow, varies of state prompt and units

Data Storage

EEPROM/FLASH, automatically record the accumulative flow of last 521 days

Measurement Cycle

Measuring: 1/second; Verification: 4 times/second

Power Consumption

≤2.7AH/year, 6 years battery life

For more information, please download the full brochure here