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Bluetooth 4G water meter
1、 Product Introduction: The Bluetooth NB-IOT water meter adopts a low-power Bluetooth 5.0 chip and 4G module, with built-in communication fees and au
Product details
1Product Introduction
The Bluetooth NB-IOT water meter adopts a low-power Bluetooth 5.0 chip and 4G module, with built-in communication fees and automatic data uploading at regular intervals. It can also be managed at any time through Bluetooth connection. Implementing one table for multiple APP accounts ensures user data security and ease of use. This has changed the traditional way for users to purchase water with a card from the property management department or water resources management department of the community. Users can use a mobile app to achieve real-time water purchase, real-time data upload, mobile meter reading, automatic transmission and other functions; Support WeChat, Alipay, top up card and other recharge methods. This water meter has IP68 waterproof function and is connected to cloud service system, perfectly adapting to the requirements of the mobile phone era.
In this water meter application, battery power is used, and the Bluetooth transmission distance reaches 20m. There is no distance limit for 4G signal transmission, and it can be used normally in places where there is a 4G signal from a mobile phone.
The Bluetooth 4G water meter can be networked internally through Bluetooth signals, solving the problem of data upload when individual water meters have poor signals. It is also possible to reduce overall power consumption and communication fees by sharing 4G channels.
2、 Main features of the product
Prepaid function: Users can purchase water before use, and if they owe, the valve will be closed to stop the water supply.
● Support single price setting, guaranteed consumption setting, and tiered price setting.
Mobile APP recharge: Changing the traditional water purchase mode, users can recharge with their mobile phones at home.
● Display synchronization function: The data on the mobile app is synchronized with the mechanical part of the water meter.
● Alarm function: Battery undervoltage, insufficient water usage, strong magnetic interference, and other fault information may cause the valve to close. Login to the mobile app to view the reason for valve closure.
Real time data upload: Users will upload relevant information to the management system when purchasing water, allowing the management to understand the user's water purchase situation.
Valve self maintenance function: The valve operates once every five days to promptly remove valve scale and ensure valve flexibility.
● Anti hoarding function: The system software can flexibly set the upper and lower limits of water purchase to prevent users from hoarding water.
3、 Product advantages
1. Bluetooth 4G water meter=Bluetooth water meter+4G water meter, combining the advantages of both
2. Mobile phone and 4G dual channel, mobile phone transmission is more flexible and stable when there is no 4G signal
3. Networking is possible, with Bluetooth water meters and Bluetooth 4G water meters forming a network that shares 4G channels, enabling each meter to have 4G functionality
4. Wide network coverage: Cat.1 is carried on existing LTE networks and seamlessly compatible with existing 4G facilities, making it suitable for areas with mobile 4G signalsCan be used normally
5. High transmission rate: The transmission rate of mobile communication systems can reach 5Mbps, compared to NB's 250kbps
Improved by 20 times
6. Easy installation and maintenance: Operators do not need to upgrade the hardware configuration of the base station to directly achieve 4G terminal access
7. The entire meter meets IP68 waterproof rating and can be soaked for use
4、 Measurement requirements
Medium temperature: (0~30 ° C)
Water meter nominal pressure 1MPa
1.Maximum allowable error: Low zone (Q1≤Q＜Q2）The maximum allowable error is ± 5%. High Zone (Q2≤Q≤Q4）The maximum allowable error is ± 2% when the water temperature is ≤ 30 ℃; When the water temperature is above 30 ℃, it is ± 3%.
2.The electromechanical conversion error shall not exceed ± 1 electromechanical conversion signal equivalent
3.Temperature level: Cold water meter (0~30) ℃ Flow profile Sensitivity level: U10 Downstream flow field Sensitivity level: D5
4.Pressure loss level: △ P63
5、 Technical indicators
6、 Technical parameters of controller
Voltage range: It can work normally when the voltage is not lower than 3V-3.6V.
Adopting a 5-wire valve system: motor+red; Motor - black; Public end white; Yellow valve opening signal; Blue valve closing signal.
The dimensions of the entire meter and water valve connection are shown in the figure: Unit: mm
4、 Measurement requirements
Medium temperature: (0~30 ° C)
Water meter nominal pressure 1MPa
1.Maximum allowable error: Low zone (Q1≤Q＜Q2）The maximum allowable error is ± 5%. High Zone (Q2≤Q≤Q4）The maximum allowable error is ± 2% when the water temperature is ≤ 30 ℃; When the water temperature is above 30 ℃, it is ± 3%.
2.The electromechanical conversion error shall not exceed ± 1 electromechanical conversion signal equivalent
3.Temperature level: Cold water meter (0~30) ℃ Flow profile Sensitivity level: U10 Downstream flow field Sensitivity level: D5
4.Pressure loss level: △ P63
5、 Technical indicators
|
performance |
Debugging method | operating frequency | transmission distance | Working Voltage | Electromagnetic environment level | temperature grade | pressure rating | Protection level | Environmental level |
|
parameter |
NB-IOT/Bluetooth | 850/900MHz | Within the coverage area of the base station |
3.6V |
E1 |
T30 |
MAP16 |
IP68 |
Grade B |
| Nominal caliber mm | accuracy class | Overload flow Q4 | Common traffic Q3 | Boundary flow Q2 | Minimum flow Q1 | minimum reading |
| m3/h | m3 | |||||
| DN15 | Level 2 | 3.125 | 2.500 | 0.040 | 0.025 | 0.0001 |
| DN20 | Level 2 | 5.000 | 4.000 | 0.064 | 0.040 | |
| DN25 | Level 2 | 7.875 | 6.300 | 0.1008 | 0.063 | |
| DN32 | Level 2 | 12.5 | 10 | 0.200 | 0.125 | 0.0001 |
| DN40 | Level 2 | 20 | 16 | 0.320 | 0.200 | |
| DN50 | Level 2 | 31.25 | 25 | 3.15 | 0.5 | |
| DN65 | Level 2 | 50 | 40 | 1.28 | 0.8 | 0.001 |
| DN80 | Level 2 | 78.75 | 63 | 2.016 | 1.26 | 0.01 |
| DN100 | Level 2 | 125 | 100 | 3.2 | 2 | |
| DN125 | Level 2 | 200 | 160 | 20.16 | 3.2 | |
| DN150 | Level 2 | 312.5 | 250 | 8 | 5 | |
6、 Technical parameters of controller
Voltage range: It can work normally when the voltage is not lower than 3V-3.6V.
Adopting a 5-wire valve system: motor+red; Motor - black; Public end white; Yellow valve opening signal; Blue valve closing signal.
The dimensions of the entire meter and water valve connection are shown in the figure: Unit: mm
| Nominal diameter (mm) | The total length of the watch is L | Full width B | The overall height of the meter is H | Connecting thread D | |
| mm | |||||
| 15 | 165 | 85 | 115 | G3/4B | |
| 20 | 195 | 85 | 115 | G1B | |
| 25 | 225 | 119 | 115 | G1 1/4B | |
| 32 ball valve | 350 | 100 | 180 | G1 1/2B | |
| 40 ball valve | 365 | 125 | 195 | G2B | |
| 50 butterfly valve | 330 | 160 | 380 | ||
| 65 butterfly valve | 250 | 185 | 380 | ||
| 80 butterfly valve | 275 | 205 | 405 | ||
| 100 butterfly valve | 320 | 225 | 500 | ||
| 150 butterfly valve | 365 | 285 | 560 | ||
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