RF Card water meter ; water meter ; DN15

RF Card water meter ; water meter ; DN15

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1000 pc

Supply Capability:: 30000 pc/month

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The RF card water meter (DN15) consists if a valve device, a movement, a sensor, a reducer, a battery, an electorinic module, and a radio frequency card. It has prepaid and cintrilled function.

It implements the CJ/T133 standard. The indication error and measurement width with the GB/T778.1 (equivalent to ISO4064).

The main technical parameters

Pulse constant: 10
Quiescent current: ≤6uA
Dynamic current: implements : ≤20mA
Actuator maximun current : ≤60mA
Working voltage: 2.8V to 3.6V
Q₁ to Q_2,excluding Q₂ indication error ≤±5%, Q₂ to Q₃ (including Q₂) indication error ≤±2%

Features

When the battery is not powered or the battery is replaced, the valve is automatically closed to effectively prevent water theft. When the battery is powered, the valve is automatically opened, which does not affect the user's water.
Anti-attack design, anti-magnetic, anti-vibration. When a magnetic object is close to the water meter, the valve is automatically closed to prevent the magnetic object from interfering with the meter.
Pre-paid function, after the card is recharged, the water is swiped, and the remaining amount or amount is automatically reduced when the water is used. The remaining amount is automatically closed.
For the query funtion, the user can query the remaining amount, water consumption and other related information on the water meter LCD.
One meter to one card, the user first puechases the water card and the water meter is bound, one water meter corresponds to one card is locked.
The card replenishment funtion, the replenishment card continues the data in the original meter and the amount or amount of water remaining
Anti fouling function, automatic opening and closing of the valve at regular intervals, not only prevent ball valve fouling, but also solve the lithium battery voltage hysteresis problem.
Power-down protection function, power off or no power, the microconteoller automatically saves data
Low voltage protection, when the battery voltage is lower than the set valve, the valve is automatically closed.

Flow point verification parameters and installation size parameters

Serial Number	Specification	Maximum flow Q₁	Maximum flow Q₃	Transitional flow Q₂	Minimum flow Q₁	Total length	Width	Height	Connection thread
1	DN15	3.125m³/h	2.5m³/h	0.02m³/h	0.02m³/h	165	82	100	GB 1/2'
2	DN20	4m³/h	4.0m³/h	0.032m³/h	0.032m³/h	195	82	100	GB 3/4'
3	DN25	6.3m³/h	6.3m³/h	0.0504m³/h	0.0504m³/h	225	82	100	GB 1'

Q:The water meter doesn't move. The pump keeps beating. Why?: If it is a pump problem, check the following items:1) if the pump outlet pipe has a pressure gauge, or suction pipe mouth has a vacuum meter, calculate the sum of the two, whether or not close to the head.2) observe the pump housing bearing whether there is a large number of leaks, if there is, please check the leakage ring and other sealing devices3) check the pump blade whether there is excessive damage, such as cavitation4) check whether the blade is correct or not5) check the pump mounting height, the height is greater than the allowable suction height (centrifugal pump, 5~7, m) if it is self Jiezhuang pipeline pump should pay special attention to this problem, the height is not more than 2~3 residential floor height. For example, the third floor does not need to install the pump, may have the water, then the pump installs the highest not to be able to exceed six.6) check that the suction port is blocked7) check the suction pipe whether there is greater hydraulic loss

Q:The cause of the water meter's rotation: This causes the rotation of the airbag, large amount of water. Tap water production process enterprise is open construction, in the production process of water dissolved gas, at the same time in the construction process, the pipeline will be brought into the gas pipeline, if the exhaust valve is unreasonable, gas cannot be ruled out such well. If the family for a long time without water or pipeline design is not reasonable, the highest point in the home or pipeline will be produced. The airbag sudden starting point as everyone knows, the compressibility of the gas is very high, if the pipe network pressure fluctuations, after duct space expansion will be a great amount of water rotation resulting according to statistics, resulting in less water is 2-3 more than m3 months, there will be dozens of monthly cubic meters of water. According to statistics, the existing water meter rotation to reflect the users call 26, after the scene investigation found, Because there is an air bag in the pipe behind the table, there are 21 households that make the rotation, accounting for 80.8%. After the meter, the pipe leaks 5. Therefore, at present, most of the water meters produce the rotation phenomenon, all because the memory behind the tube is caused by the air bag

Q:Household card water meter, the house valve is closed, no water, water meter is slow rotation, what is the reason?: No, the problem still exists, now the problem is clearly not a problem with the meter is not check valve, water is your home stream, you do not find out where the water has gone, it is not assured, the most reliable method to call the tap water company, please pay their people leak. I'm sure I can find it. Charges vary from place to place. The table before the problem of tap water company, after the table is your own home, so you may need to pay for

Q:The water meter is stuck on the card without show: There are 3 possible 1, more than 100 cubic meters do not show 2, you pull the card to pull the card too fast, try to use the speed of the turtle climb to plug the card, also shows 3, water card degaussing......

Q:The plastic lid on the water meter has fallen off. Can you match it?: Not for sale. For example, filling liquefied petroleum gas relief valve, if the rubber pad lost, buy a 5 cents only. But you can only earn 10 Fen if you buy one. So, stores only sell the new valve, a net profit of 5 yuan. Those who do not have to buy a new one.

Q:How often is the water meter checked?: Water meters belong to strong inspection and measuring instruments. According to the relevant provisions of the state 's work on the determination of work measuring instruments for compulsory verification, the period of inspection for general inspection instruments shall not exceed 1 years.

Q:Can you tell me the unit of measurement for standard water meter, ton or cubic meter?: Both are available. A ton is only a weight, and a cube is a sign of size.Because the proportion of water is 1g/c, is also very easy to work.

Q:Will the water meter go bad?: Under normal circumstances, the sun alone will not make water readings abnormal. A strong plastic smell; probably a pipe!

Q:What's the structure of the valve before the water meter?: The valve is gate valve, the valve core and the dam gate principle is same, the gate heart rises, the water flows out the gate heart to be lower, the water is smaller, until closes!

Q:How to solve the water meter inversion?: Because the anti reversing performance of the intelligent water meter is very good, the phenomenon of water meter reversal mainly appears in the ordinary water meter. First, the human factors in the reversing of the water meter, the manual bar, the reverse is man-made, and a few soil method is also very simple, as long as the water meter is removed, the installation can be reversed.

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