smart water meter 20mm

The meter is the hi-tech mechatronics product, using of advanced wireless transmission technology, it transforms metered information of conventional mechanical water meter into electrical signal have it stored by micro-electronics control circuit. It is able to automatically read the metering data via wireless remote network and control the close/open of the valve, and is also able to transfer the data to the back-office system(data center) after reading the meters by a wireless handset reader.

The structure diagram of the whole system is as follows, the server send the commands to the data concentrator through the network, further, the concentrator transforms the received commands into the wireless signal and send the signal to the water meters; The water meters respond and execute the actions accordingly, after receiving the commands; The meters deliver the result or data back to the data center as per the original route after the actions finished.

 The product consists of the wireless communication module and the mechanical meter and is with the functions of measuring, calculation, storage, diagnostic and wireless automatic meter reading(AMR), etc.

(1) Measuring Method: Use of detection mode by double reed switch, preventing effectively the error caused by the electromagnetic interference and the pulse jitter.
(2) Communication Mode: The communication module is in dormancy mode at ordinary time, it comes to life with a very shor time each minute and it detects if there is wireless commands or not. If detected, it starts the receiving function and receives the data; If not, it enters into sleeping mode. By this way, it drastically reduces the average power consumption of the module that effectively prolongs the battery life.   

With anti-magnetic interference function that when the two reed switches pick up caused by the magnetic interference, the valve closes off automatically; It automatically opens when the interference stops.
With the battery voltage detection function, it can pass the power-off information to the management platform when the batetry almost runs out, facilitating the administrator to find that;
Module with automatic data storage function when power down arises, assuring the data won’t lost when power down, and when the power supply recovers, it is able to continue to work properly.
The joint of the RF module and the base meter uses the integrated structure, with built-in antenna, reducing the damage of antenna in the process of installation; 

• The communication distance of the wireless module can be optimized according to the different demands, peer-to-peer communication distance no less than 1500m(In open field condition, thus, during practical construction, the transfer impedance need to be considered).
• Use of LoRa transfer mode that can drastically extend the communication distance after the repeater(s) installed.
• The module uses of deep dormancy time design, it is able to completely close the wireless module during the deep dormancy time period(not in operation during night time ), which drastically help reduce the power consumption;
• Whole circuit board uses of ultra low power consumption design, power suuply by high capacity lithium battery, battery life over 6 years;
• Is able to set up the metering devices by the handset reader and check the original data and data from meter reading.
• AMI function that the system is able to control the shut on/off of the valve on real time by the help of the valve.

◆ Thanks to the functions of the handset reader, it makes the debugging, installation and maintenance of device easier to handle with.
◆ The handset reader can read single meter, and can also handle the groupped reading of multiple meters that being imported into. The data collected can be imported to the data base of the server/data center via a USB cable or GPRS network.

Working Method: Uplink, it communicates with the data center through GPRS network; Downlink, it communicates with the meters via the wireless signal. Uplink/Downlink link route can real time communication, the concentrator can receive the command from the data center and pass it to the meters, the meters execute the command to act, after the action is finished, the meters feed the result back to the concentrator, it further delivers the result to the data center through GPRS.  

 It refers to the central control and the management system of the meter-reading system, it is in charge of the control and the management of the operation of the concentrators of each user area within the whole meter-reading area. It is the meter reading and control system that consists of the computer system, the system management software, the application software and the data base. Its main functions include: File management, Operation management, Statistical analysis, Data export, etc.
The system uses B/S structure design, no need to install the client, with easy access to the system, type directly the URL and log into the system at anywhere there is access to the internet.

1)How do I select the size of the water meter?
Range of operation (flow rate) is specified for each water meter. Water meters should be selected based on the flow rate range expected at the location of installation. It is not depended on the adjoining pipe size.
2)What is the measurement accuracy of a water meter?
The required accuracy of a good water meter is ±2% in general and ±5% at very low flow rate range. The exact flow range for a particular water meter depends on the size and class.
3)Can I replace my old water meter with a new one of the same size from a different manufacturer?
It is possible, in general. However it is better to check the length due to alternate lengths of the meter permitted in different standards.