Ⅰ Overview

LXC(K5) Ultrasonic water meter is the smart type meter that used for the accurate measurement of flow. It is practical and economical and featured by delicate appearance, easy installation, steady operation, high resistance to corrosion and dirt, long life, small pressure loss, etc. It is applicable to the metering and billing of domestic water, centralized air conditioning system water, etc.

Ⅱ Working Principle & Applications

  1. Principle & composition

The meter comprises the quality temperature sensor,the flow sensor and the calculator.The temperature sensor to measure the temperature of water and the flow sensor to measure the volume of water that flow through the pipelines by the transit time difference. The two data is sent to the calculator after being collected, the consumption water quantity is worked out, stored and indicated on the LCD finally.

2. Main Applications

The product is mainly applied to the metering of flow volume of water as the medium, like domestic water, water supply for centralized air conditioning system, etc.

Ⅲ Outline Dimension

DN(50～300)

Nominal Diameter

mm

Length L

mm

Width B

mm

Hight H

mm

Flange Connection   GB/T17241.6-2008

Flange Diameter D1

Bolt Circle Diameter D2

Bolt Size—M

DN50

200

170

215

170

125

4—M16

DN65

200

185

220

185

145

4—M16

DN80

225

200

235

200

160

8—M16

DN100

250

220

255

220

180

8—M16

DN125

250

250

285

250

210

8—M16

DN150

300

285

335

285

240

8—M20

DN200

350

340

405

340

295

12—M20

DN250

450

405

470

405

355

12-M24

DN300

500

460

525

460

410

12-M24

Ⅳ Installation Diagram

ⅤNormal Indications

Mode

No.

Display content

Display description

P1

1

X.XXX m³

Cumulative flow

2

XX h

Total working time

3

XX.XX ℃

Temperature

4

XX-XX-XX

Current Date (year-month-day)

5

X.XXX m³/h

Instantaneous flow

6

XXXXXXXX

Add .of meter

7

X.XX V

Current Voltage

8

XXX  XXX

Caliber version No.

9

ST1 BIT X=1

After the description

P2

1

XX-XX

History month

2

X m³

Historical traffic

…

…

…

Cycle to display 23 months of data

P3

1

XX-XX-XX

Time（h-min-s）

…

XXXX

Parameter

P4

1

X.XX L

Accumulated flow test

2

X.XXX m³/h

Instantaneous flow rate test

3

XX.XX ℃

Temperature

4

XXXX

Dynamic parameters

BITX Description：BIT0 =1：Reserved bit；BIT1 = Night traffic；BIT2 =1：battery is low；

BIT3=1 Water countercurrent；BIT4 =1：Placeholder  BIT5 =1：Non-full tube；

BIT6 =1 Temperature sensor fault 

Note: Press and hold the key in awake state to enter the mode selection interface (P1, P2, P3, P4).

It enters into sleeping mode without any operations in 5 minutes, no indication

Ⅵ Technical Parameters

Nominal diameter

50

65

80

100

125

150

200

250

300

Max flow Qs(m3/h)

31.25

50

78.75

125

200

312.5

500

787.5

1250

Nominal flow Qp(m3/h)

25

40

63

100

160

250

400

630

1000

Transitional flow Qt(m3/h)

0.2

0.32

0.5

0.8

1.25

3.2

3.2

5.04

8

Min flow Qi(m3/h)

0.125

0.2

0.32

0.5

0.8

2

2

3.15

5

Start-up flow(m3)

0.03

0.05

0.06

0.08

0.1

1.25

0.3

0.5

0.6

Max flow indication(m3)

999999.99

Measuring range

Q3/Q1, R=200

Accuracy class

Class B

Pressure loss

≤0.063 Mpa

Max working pressure

1.0MPa/1.6 Mpa

Temperature class

T30/T50

Temperature range

(5~55)℃

Resolution temperature

0.01℃

Installation environment

Indoor, Class B

Electromegnetic environment

E1 (Residential, Commercial, Industrial)

Power supply

Bult-in lithium battery DC 3.6v(outer power supply can be customized)

Battery life

＞ 8years

Installation position

Horizontal or Vertical

Display

LCD, 8 digits + additional characters

Construction

Compact type

Upstream/Downstream flow profile sensitivity class

U10/D5

Interface

Optical/RS 485/Mbus(Mbus by default, pulse output is customizable)

Protection class

IP68

Data storage

Flash memory, storage of all monthly value of last 18 months

Flow measurement

Normal state:6 times/4 sec.(1 time/15 sec.under no water condition);Verification state:12 times/sec.