China Smart Electric Meter manufacturer
WUHAN RADARKING ELECTRONICS CORP.
WUHAN RADARKING ELECTRONICS CORP. Electric Meter, Smart Water Meter, Smart Gas Meter & AMI solution
9
Home > Products > Smart Water Meter >

Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm

Wireless Intelligent LoRaWan Smart Water Meter For House DN15mm 20mm 25mm

Brand Name RADARKING
Model Number SKZS
Certification CJ/T133-2012, GB/T778-2007
Place of Origin China
Minimum Order Quantity 100pcs
Price Negotiation
Payment Terms L/C, T/T, Western Union, MoneyGram
Supply Ability 5000000 pcs per year
Delivery Time 5-35 days
Packaging Details Standard Export Package
Standard CJ/T133-2012, GB/T778-2007
Accuracy Class 2.0, 1.0
Li-lon Battery 3.6V(2Ah), 3.6V(3Ah0
Static Current ≤ 5 uA
Working Current ≤ 10mA
Condition Cool water meter 0-40℃; hot water meter 0-90℃
Detailed Product Description

DN15mm 20mm 25mm Wireless Intelligent LoRaWan Smart Water Meter for House

 

Newest LoRaWAN Solution V1.2.pdf

 

Introduction

The wireless intelligent water meter consists of remote basic water meter, wireless communication modules and other components. This product can complete the data collection of point-to-point through the gateway with low power consumption, long life and two-way data transmission. It provides reliable protection for the accurate collection of real-time data; Wireless water meter uploads data to the gateway everyday automatically, then the gateway uploads data to the network platform automatically; This product is simple in structure, easy to maintain and replace, and connect with no cables. So, it is easy to install.

 

Specification

1. Operating environment:

    Water temperature: 0.1℃~30℃

    Protection grade: IP68

2. Operation water pressure: 0.03MPa~1.0MPa

3. Pressure loss: ≤0.1MPa

4. Main Parameters:

Power ConsumptionStatic current consumption (wireless module doesn’t include counting sensor)≤10µA
Wireless current receiving power consumption≤18mA
Wireless current emission power consumptionAbout 120mA

Wireless

Performance

Parameter

 

 

 

RF center frequency433MHz
ModulationLORA
Frequency bandwidth125KHz,250KHz can be optional
RF power20dbm(100mW) (Typical)
Transmission rate0.25-50kbps (LoRaWAN)
Receiver sensitivity-143dBm @SF12/BW 125KHz
Power supply3.6V lithium batteryMore than 10 years
Sampling MethodHall sensor, double pulsePointer sampling at 0.01, addend when positive rotation, subtrahend when inverse rotation.

5. Range ratio and flow range

(DN)

mm

Q3 /Q1

Overload Flow

Q4

Common Flow

Q3

Demarcation Flow

Q2

Min Flow

Q1

Display
Min m3Max m3
m3/hm3
15803.1252.50.050.0310.00019999.9999
1000.040.025
2080540.080.05
1000.0640.04
25807.8756.30.1260.079
1000.100.063

6. Electromechanical Conversion Error ≤±0.5m3

7. Allowable Maximum Error:

From the minimum flow to the low zone that does not include the demarcation flow: ±5%;

From the demarcation flow to the high zone including the overload flow: ±2%.

8. Communication Distance:

City transmission distance: About 2km

The number of floors crossed: About 15 floors

9. Power Supply: The gateway needs an external 220V power supply;

10. All prepaid costs are stored in the meter reading system. Based on the collected data of water consumption, it is determined whether the user owes fees.

 

Communication Introduction

LoRaWAN is a set of communication protocols and system architectures designed for LoRa long-distance communication networks.

When the module is powered on, it automatically sends a join packet. If no reply from the gateway to the network, the join packet will be sent in intervals. After the module receives the network access permission message by the gateway, it pushes a packet of heartbeat data; Since then, it starts timing. Actively push a pack of heartbeat data at intervals of 6 hours.

The data upload mechanism can be timed or quantitative or both, and can also be customized on demand.

1. Frame Format(DL/T645-2007)

SpecificationCode
Frame initiator68H

 

 

Address domain

 

 

A0
A1
A2
A3
A4
A5
Frame initiator68H
Control codeC
Data field lengthL
Data fieldDATA
Check codeCS
Terminal code16H

* Address field A0 to A5: Communication address of the meter.

 

2. Device uploads packets

NameDataInstruction
LeadingFEFEFEFE 
Frame initiator68H 
AddressA5 A4 A3 A2 A1 A0Low byte first when sending
Frame initiator68H 
Control code91H 
Length0CH 
Data identification00004200Low byte first when sending
Data (Note 1)XXXXXXXXLow byte first when sending
Status word (Note 2)XXXXLow byte first when sending
Battery voltageXX15.37×xxH=xxxxxmV
Reserved bytesXX 
ChecksumCS 
Terminal code16H 

Note1: The data format is defined as follows:

 Data FormatCode SystemUnitRemarks
Accumulated Water Meter ReadingXXXXXXXXBCDTons

Cumulative water consumption

The decimal place defaults to 2 bits of data. The format is: XXXXXX.XX

Note2: Status word is defined as follows:

ST0 D7D6D5D4D3D2D1D0
Definition Mandatory stateStrong magnetic interferenceOverdraft statusAlarm statusVoltageValve status
InstructionReserved

0:no mandatory

1: Forced

0: normal

1: Overdraft

0: normal

1: Overdraft

0: normal

1: alarm

0: normal

1:Under voltage

 

00: open

01: Off

11: Abnormal

ST1 D7D6D5D4D3D2D1 
Definition        
Instruction    ReservedReservedReservedReserved

 

  • Dimension and installation drawing

DN

(mm)

Length

(mm)

Height

(mm)

Thread

D

Length of connection thread (mm)
A.minB.min
1516586G3/4B1012
2019586G1B1214
2522586G11/4B1216

 

 

Why Choose Us:

1. As a leading meters manufacturer, our products including: Energy Meter, Smart Electronics Meter, Smart Water Meter, Gas Meter and AMR system.

2. We own the factory and a R&D group of more than 30 persons.

3. We have 260 sets of production and testing equipments.

4. we have a high efficiency, innovative, serious management team and guarantee after-sales service.

 

Product Tags: Irrigation Water Meter   Hot Water Meter  
Related Products
Email to this supplier
 
From:
Enter your Email please.
To: WUHAN RADARKING ELECTRONICS CORP.
Subject:
Message:
Characters Remaining: (80/3000)