Product Description

Gomelong is a professional manufactures of Lora Wireless Prepaid Token Water Meter. Our professional expertise in manufacturing Lora Wireless Prepaid Token Water Meter has been honed over the past 10+ years.Lora Wireless Prepaid Token Water Meter has long transmission distance, low power consumption, small size, high reliability, convenient system expansion, simple installation and maintenance, and high meter reading success rate. The DDS5558 wireless remote water meter uses a high-performance, low-power LoRa wireless module.

Product Detail

Lora Wireless Prepaid Token Water Meter

 

Product Overview of Lora Wireless Prepaid Token Water Meter


Lora Wireless Prepaid Token Water Meter,the DDS5558 wireless remote water meter uses a high-performance, low-power LoRa wireless module. Its special LoRa debugging method can greatly increase the communication distance, and at the same time, it can cooperate with advanced and efficient networking algorithms to realize complex environments by relaying neighboring nodes to each other. Long distance communication. The module can implement up to 9 relays. The communication distance is 10 times more than that of the ordinary point-to-point mode. Lora Wireless Prepaid Token Water Meter has the characteristics of small size, low power consumption, and strong anti-interference ability.

Low-power wireless meter reading system integrates metering, two-way communication and meter reading control valves. Lora Wireless Prepaid Token Water Meter has long transmission distance, low power consumption, small size, high reliability, convenient system expansion, simple installation and maintenance, and high meter reading success rate. The TDMA time division multiple access communication method automatically synchronizes communication time units. Using frequency hopping technology to avoid the same frequency interference and improve the reliability of transmission. The use of transmission rate and transmission distance adaptive algorithm to effectively improve system capacity.


Features of Lora Wireless Prepaid Token Water Meter


1、Compliant with the regulations of GB/T778-2007 and CJT133-2012 .

2、Support for power-off reading storage.

3、Support group reading and point-to-point meter reading function

4、micro-power wireless communication module, effective transmission power 30mW (15dbm) .

5、The wireless communication operating frequency is 480MHZ , which belongs to the special frequency band for metering and does not need to apply for frequency points.

6、The module operating voltage is +2.8V ~ 3.6V , ultra-low power design,

quiescent current≤ 9uA,average power consumption ≤ 25uA; Maximum pulse current emission≤70mA, valve-controlled maximum pulse current ≤160mA; battery life more than 10 years.

7、Upload data every 4 hours or metering 0.5,visual communication distance is greater than 2000 meters.

8、4 communication channel reserved,More reliable to avoid the frequency disturb .

9、Double reed pulse measurement, antimagnetic attack design, magnetic attack detection alarm.

10、 Supports valve control, remotely sends valve control commands via handheld devices or systems.


Technical parameters of Lora Wireless Prepaid Token Water Meter


Water temperature

0.1℃~65℃

Operating pressure

≤1.0MPa

Pressure loss

≤0.063MPa

Storage temperature

-25℃~65℃

Operating current

Receive  Operating  current≤30mA , emission  Operating  current≤70mA

Transmission frequency

475~495MHZ

Communication Protocol

DLT/645,CT/T188,STS,DLMS,or customized

Transmission distance

Visual Distance≥ 2000meters

Communication interval

Receiving window≤ 3ms , receiving interval≤ 8s , transmitting time≤ 400ms

Maximum allowable error

From the low zone that includes the minimum flow (Q1) to the zone that does not include the boundary flow (Q2): ± 5%. From the demarcation flow (Q2) to the high zone including the overload flow (Q4): ± 2%.


Basic Parameter of Lora Wireless Prepaid Token Water Meter


Nominal diameter        

Meter and joint length            

Length                  

Width                    

Height

Connection thread

 

 

d

D

15

2 5 9

1 6 5

1 1 0

1 4 5

R 1 / 2

G 3 / 4 B

20

3 0 0

1 9 5

1 1 0

1 4 5

R 3 / 4

G 1 B

25

3 4 4

2 2 5

1 1 0

1 4 5

R1

G 1 1 / 4 B

 

Nominal diameter

Accuracy

Common flowrate Q 3

 Q 3 / Q 1

 Q 2 / Q 1

D N ( m m )

Cl a s s

m ³ / h

1 5

 2 . 0

2 . 5

6 3 / 8 0 / 1 0 0

1 . 6

2 0

4

6 3 / 8 0 / 1 0 0

1 . 6

2 5

6 . 3

6 3 / 8 0 / 1 0 0

1 . 6

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