Smart Water Meter DN15,DN20,DN25

Intelligent Shape Your Future

NB-IoT water meter adopts the most a d v a n c e d n a r r o w b a n d c e l l u l a r communica t ion techn ique , w i th the advantages of network depth coverage, wide links, low power consumption, and the communication is stable, reliable and safe. Support three kinds of payment methods: prepaid by credit, prepaid by quantity and postpaid.

During user uses water, the micro-computer inside the water meter will subtract the credit according to the settled multi-tariff. After the credit is used up, the water meter will automatically close valve and stop water supply, and at this moment, user has to purchase again for continual using.

If adopts prepaid by credit method, then 5 demarcation points and 6 different prices can be set, bill calculation mode can be set as monthly, quarterly or yearly.

If the prepaid credits in water meter is insufficient, user shall recharge for this meter, after top up, user shall press the button in the water meter to log in network, then management software will transfer the recharge credi t to water meter automatically.

Page 1

NB-IoT

Technical Data

Key Techniques

Page 2

Caliber（DN） 15mm 20mm 25mm

Overflow Rate(Q4) 3.125m³/h 5 m³/h 7.875 m³/h

Common Flow Rate (Q3)

2.5 m³/h 4 m³/h 6.3 m³/h

Demarcation Flow Rate(Q2) 0.05 m³ /h 0.08 m³/h 0.126m³/h

Minimum Flow Rate(Q1) 0.0313 m³/h 0.05 m³/h 0.0788 m³/h

Measurement Range(Q3/Q1) R160

LCD Dispaly Accuracy

Maximum Reading

Level of Pressure Lossl

Flow Section Sensitivity Level

EMC Level

Environment Temperature

Power Supply

Minimum Reading

0.1m³

99999m³

0.0001m³

△p63

U10,D5

E1

-15℃～70℃

3.6V lithium battery

Environment Safe Class Class B

Maximum Allowable Error Q1≤Q＜Q2 Error ≤±5%; Q2≤Q≤Q4 Error≤±2%

Working Pressure 0.03MPa ~1 MPa

NB-IoT technique, signal network depth coverage (underground installation and piping well all can work normally), ultra-low power consumption, stable and reliable communication.

With infrared communication function, with handheld devices can query and set the data.

Micro-power technology, timing detection technology, NB-IoT ultrasonic water meter quiescent current is less than 15μA.

Electric ball valve technology, reliable work, pressure loss is small.

Totally sealed design: all the circuits are sealed by high performance casting glue, so there is no exposed electrode, and can be used in moist environment.

Free to set the online time, read real-time data and freeze

Anti-external electric and magnetic attack technology, when the external power and magnetic attack, the water meter will automatically shut off the valve and instructions.

Micro-computer and micro-storage technique: high integrated and high reliability.

NB-IoT Technology

Page 3

Working Structure

20dB Better Link Budget

Deep penetration

3GPP Standard

International UniformCriterion

Security

Mutual Authentication to Ensure Customer Data More Security

Not Occupy the Existing Network Voice

and Data Bandwidth

Easy & Fast Deployment

Steady & Reliability

Re-use ExistingCellular

Network

Low Cost

Low Power Consumptio

n

Mass link

One Base Station, Access Terminal Improves 50 -100 Times Higher Than the Existing Technology

Introduce Long Length DRXEnergy Saving Technology

andPSM Power Saving Mode

Low Rate, Low Power Consumption and Low

Bandwidth Create Low - cost Advantage

Page4

1.Water meter installation should be complied with GB/T778.2 installation

requirements.

2.The caliber of NB-IoT water meter shall depend on the caliber of the pipeline, and the

usual used water flow is better less than or close to the common flow of the water meter;

and the installation location shall be avoid insolation, flooding, freeze and pollution, and

convenient for installation, removing and reading data.

3.The sands and stones and other sundries in the pipeline, such as hemp thread shall be

cleaned firstly in case of water meter breakdown.

4. NB-IoT water meter should be installed horizontally (display face up)

5.Please leave enough space for repairing, and installation according to water flow direction

on the pipe.

6.Please do not apply too much force when connecting the NB-IoT water meter and pipe, to

avoid damage the meter body and result in water leakage.

7.If the water meter is installed on the inlet of the boiler, it is better to install non returned

valve on the outlet of water to prevent that the return current of hot water and steam will

damage the water meter.

Dimensional Diagram

Installation

DN25

Width

Height

L1

L2

L3

Size

mm

mm

mm

mm

mm

DN20DN15

126 126

88 88

165 195

1614

255 295

18

341

225

126

88

Diameter

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

R1/2 R3/4 R1

Page5

1. If not use water meter for long time (exceeds one week), please close the valve in

front and back of the water meter.

2. Check the operation condition of the water meter regularly,

3. If LCD display is not consistent with the dial wheel of water meter or something is

wrong with the water meter, please read the data of the dial wheel.

4. Water meter can be installed within NB-IoT network coverage, the signal value

can be checked by management software and it is not recommended to be installed

in a position of less than 5.

5. Press the water meter button, without infrared communications, water

meter data will be reported after 2 minutes; at that time, real-time transcribing

and setting parameters can be operated through management system.

6.

and prevent freezing

in winter.

Replace the old batteries in time and pay attention to the polarity. Please use

good alkaline and same model batteries.

Attention:

Suntront Tech Co., Ltd was established in 2000 with a registered capital of RMB 535 million. Suntront had a successful IPO public listing on the Shenzhen Stock Exchange in August 2011(Stock Code: 300259).Suntront’s headquarters is in Zhengzhou. The headquarters complex covers an area over 110,000 square meter. We are now in the process of expanding by building a new IOT Industrial Zone in Wuxi district. When completed, it will cover an area of 26,000 square meters.Suntront has now achieved a leading market position, as well as a brand of nationalprominence in China, the world’s largest smart meter market. With this strong foundation, Suntront is now actively planning and investing to become a global force in the smart meter industry, through its own initiatives as well as strategic partnerships with leading technology companies in Europe, North America and Southeast Asia.To know more, start here: www.suntront.net.

Add: No.252 Hongsong Road, High &

New Tech Development Zone,

Zhengzhou, China.

Tel: 86-371-56160869 56160870

www.suntront.com

Suntront Tech Co., Ltd.

@Copyright 2018, Suntront. All Rights Reserved. - Suntront reserves the right to change these specifications without prior notice.