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[China]
Trade Verify
Address: No.270, Huangjinkou 3rd Village, Hanyang District, Wuhan City, Hubei Province, China
Contact name:Ada Yang
WUHAN RADARKING ELECTRONICS CORP. |
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Verified Suppliers
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Wireless AMR System Lora Smart Meter Water Meter for Cold and Hot Water High Accuracy
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 |
MOQ:
We could accept your trial order,then you can take this opportunity
to check the quality of our products & service of our company
Logo:
Buyer's logo imprint accepted
Sample Policy:
We can supply you sample for checking quality,if you pay for the
sample & sample freight. we will deliverto you in 1-3 days
after we got your payment.
Lead time:
The normal Lead time is 15-30 days , which depends on your
quantity.
Payment terms:
L/C, T/T, Western Union, MoneyGram, Paypal.
Shipping:
We can arrange the shipping by Courier ( DHL, UPS, Fedex , TNT etc.
), by air or by sea for you.
Please tell us which shipping way that you want and your detailed
address, your nearest airport or seaport.
List Of Competitive Advantage:
We are factory, can provide you high quality, best price
Professional employee and effective management
Professional trading service
Prompt delivery
Good service & reputation
Large production line
Why Choose Us
＊ Professional manufacturer for more than 15 years.
＊ Highly experienced production team in RADARKING factory work-shop.
＊ QC Systerm: Quality controlled on all production lines, and QC inspectors work independently from the production line.
＊ Good quality production with quick delivery.
＊ Accepted OEM/ODM.
＊ Accepted small MOQ.
＊ Factory certification: ISO9001, 14000, STS
