product overview
Smart IC card water meter is a new type of water meter that uses modern microelectronics technology, modern sensing technology, and smart IC card technology to achieve water quantity measurement, water use control, data transmission, and transaction settlement. This meter is used to measure the flow rate of cold/hot water in pipelines. The product complies with GB/T778-2007 and CJ/T133-2012 product standards. Yidu IC card water meters can be divided into contact and non-contact series water meters. Contact type water meters can be divided into logic encryption cards and CPI cards based on the card medium, while non-contact type water meters are RF cards. Its application has completely changed the traditional household meter reading mode in the past, realizing the water use mode of payment before water supply, greatly facilitating the water supply management department and users.
scope of application
Logic encryption card IC card water meters are used in residential areas and urban water companies, while CPU card water meters are mainly used in large water companies. Radio frequency intelligent purified water is used for direct drinking water metering and control in homes, apartments, hotels, commercial buildings, and other production areas.
Function and characteristic
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Prepaid function
The water sales department recharges through IC cards, and the user function inputs the amount to the water meter through the IC card. The amount is automatically deducted when using water, and the valve is automatically connected after the amount is used up
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Query function
Users can check the remaining amount, water consumption, and other related information on the LCD screen of the water meter
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One table, one card
After the user inserts a card (swipes the card) into the water meter for the first time, the card is automatically bound to the water meter. In the future, the user can only use this card to purchase water. If the card is inserted (swipes the card), the water meter will not recognize other user cards.
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Prevent water accumulation function
To prevent users from purchasing too much water at once, a limit on the amount of water purchased has been set. To prevent users from hoarding water after multiple purchases, the water meter has set the maximum water consumption. When users recharge, the water meter will automatically calculate the available water volume. When the available water volume exceeds the limit, the user's recharge will not be successful. Users only need to use up a certain amount of water before recharging. In this way, the water price can also be adjusted in a timely manner in the table.
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Card replacement function
After losing the card, users can go to the water sales department to get a replacement card, and the amount in the original card will not be lost.
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Abnormal valve measurement function
If a malfunction occurs and cannot be shut down, it will result in "overdrawn" water volume. The controller will automatically record the 'overdrawn' water amount and automatically deduct it from the user's water purchase card by writing back the overdrawn water amount on the next recharge.
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Regular valve opening and closing function
The water meter will automatically switch on and off once when the set time is reached, which can achieve the function of ball valve descaling and battery discharge.
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Anti strong magnetic interference function
The measuring sensor of the IC card water meter, the reed switch, is a magnetic switch. When it encounters strong external magnetism, the reed switch will be in a normally open or normally closed state, which will affect the electronic measurement of the water meter.
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Power failure protection function
Whenever there is a power outage, all operational data will be stored in the table memory for up to ten years.
Basic technical parameters
|
Execution standards |
CJ/T133-2012 |
Waterproof grade |
IP65, IP8 (fully waterproof) |
|
ambient temperature |
-20℃~70 |
structure |
Integrated, split type |
|
operation temperature |
0.1℃~40℃ |
Static power consumption |
<50μA |
|
Electronic resolution |
0.1t/imp |
Maximum working pressure |
1.0MPa |
|
pressure loss |
≤0.06MPa |
accuracy class |
level 2 |
|
Number of card insertions and removals |
Over 10000 times |
Maximum allowable error: |
From the low zone including the minimum flow rate (Q1) to the low zone excluding the boundary (Q2) ± 5% From the low zone including boundary flow (Q2) to the low zone including overload flow (Q4) ± 5% |
|
Supply Voltage |
3.0/3.6V (lithium battery), battery life ≥ 6 years
|
Installation method |
Horizontal and vertical (vertical water meter) |
External dimensions and flow parameters
|
Nominal diameter |
External dimensions |
Traffic parameters |
||||||
|
Unit (mm) |
Length (mm) |
Width (mm) |
Height (mm) |
Connection thread length (mm) |
Overload flow |
Common traffic |
Boundary flow rate |
Minimum flow rate |
|
15 |
165 |
69 |
115 |
259 |
3.125 |
2.5 |
0.05 |
0.03125 |
|
20 |
195 |
85 |
115 |
299 |
5.0 |
4.0 |
0.08 |
0.05 |
|
25 |
225 |
119 |
100 |
345 |
7.875 |
6.3 |
0.126 |
0.07875 |
