Active Member
|
[China]
Address: No.270, Huangjinkou 3rd Village, Hanyang District, Wuhan City, Hubei Province, China
Contact name:Ada Yang
WUHAN RADARKING ELECTRONICS CORP. |
|
|
Wireless Lora Smart Meter Remote Reading Water Meter for Cold and Hot Water Meter
Meter Summary:
This wireless remote water meter use LoRa modulation technology and
through wireless to transmit and receive data, is a kind of
wireless module with ultra-small, ultra-low power consumption,
superior performance and ultra-long distance transmission.Module RF
chip based on Speed Spectrum and Hopping Frequency technology, with
features of high anti-interference and high reliability. So on the
aspect of stability, anti-interference ability and also receiving
sensitivity are all far beyond the existing GFSK modulation module.
Which can solve the problems of balance the distance, interference
with power consumption from traditional design project, to meet the
requirments on long-distance transmission and high reliability.
Meter Function:
1. Wireless wake
Can realize remote wireless wake, real-time response PC processing
instruction.
2. Sampling measure
Can realize kinds type sampling, like: reed switch, photoelectric,
high measuring accuracy.
3. Attack close valve
Has prevention function from electric and magnetic attack,
otherwise, the valve will close automatically.
4. Remote-controlled valve
Can control the valve remotely, to achieve prepaid and postpaid.
5. Tigger upload
Module is asleep at usual time, can make the module upload the
real-time data by tigger.
6.Low power close valve
when the voltage is lower than a certain data, the module will
close the valve automatically and upload the real-time data.
7. Power off close valve
When the power is off, the meter will close valve automatically to
avoid accidential or human damage, when the power is back, the
valve will return back to the before states.
8. Reed switch dailure detection
when one if the reed switch is broken, the meter will upload the
damage indicator.
| Parameter | Content | Remarks |
| Working voltage | 2.7v--3.6v | If under 2.7v, the valve will close, but it still can communicate and read normally |
| Working temperature | -20~75ºC | |
| working frequency range | 470~510MHz | It can be custom-made according to client request |
| Battery | High performance lithium battery | Easily to replaced |
| Transmitted power | 20dBm as most | |
| Receive sensitivity | -136± 1 dBm | |
| Communication distance | Open distance: 2-5Km | Testing spot is urban environment, distance is based on the environment. |
| Quiescent current | 19 μA / h | Can achieve real-time wake up. |
| Sleeping current | < 10μA / h | |
| Transmitter current | < 110μA / h | |
| Receiving current | < 20 mA | |
| Wake up time | Immediately |
Specifications:
Nominal Size |
DN |
mm | In-Line | ||
| 15 | 20 | 25 | |||
| Maximum flow rate | Q4 | m3/h | 3.125 | 5.0 | 7.875 |
| Ratio “R” | Q3/Q1 | 80 | 80 | 80 | |
| Permanent l flow rate | Q33 |
m3/h | 2.5 | 4.0 | 6.3 |
| Transitional flow rate | Q22 | 0.05 | 0.08 | 0.126 | |
| Minimum flow rate | Q11 | 0.031 | 0.05 | 0.0787 | |
| Minimum reading |
m3 | 0.0005 | |||
| Maximum reading | 99999 | ||||
Maximum Permission Error (MPE)
Q1≦Q≦,Q2 MPE =+ 5% Q2≦Q≦Q4, MPE= + 2% (For hot water metering,
MPE=+ 3%)
Dimensions and diagram
| Nominal size | Length | Width | Height | Thread |
| mm | D | |||
| 15 | 165 | 101 | 124 | G3/4B |
| 20 | 195 | 101 | 124 | G1B |
| 25 | 225 | 101 | 124 | G5/4B |
About Company:
Wuhan Radarking Electronics Corp. is a modern share enterprises which focusing on the smart Internet of things(IOT) /smart grid energy consumption sensor/intelligent electric safety integrated solution. It established in 2002(former name: Wuhan Radarking Co.,Ltd.)and went public on January 27, 2015 with the stock abbreviation RADARKING and stock number 831722. It owns the independent R&D center and factory which is the key recommended high-tech enterprises in Wuhan city.
It mainly R&D, manufacture and sell the integrated solution of smart Internet of things(IOT) energy consumption sensor/smart grid energy consumption sensor/energy consumption information acquisition and transmission(Collector, Concentrator, Communication Module), smart electric meter, smart water meter, “RDK” energy Internet of Things(IOT) intelligent energy safety integrated solution, digital campus energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter/All-in-One Card cloud computing total charging management integrated solution, energy consumption monitoring and analysis integrated solution, mobile phone APP(Energy Consumption, Fast E Top Up).
