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 total water meter and the total value of the water table vary greatly: This can be self-examination: all the taps are closed, to see whether the total water meter is still walking. You can also ask the staff of the water company to check. They have special equipment. Two is to check the house of the water pipe, there is no previously connected bypass pipe, forgotten.

Q: Our water charge is calculated by the square. Isn't the meter calculated by ton? How much water does a square of water equal?: One side is a cubic meter abbreviation, the water density is 1, so the volume of 1 cubic meters of water, the weight is 1.

Q: How to change the smart card water meter?: Of course, this method is not feasible, you purchase water information in the water are the background records, the records and correspondence in the water meter, a long time if you do not pay water charges, water will go to your home reading, unless you re black water background, or you put water down, change of course what procedures, water always know, that day

Q: My water meter is upside down. What's the matter?: The water meter is equipped with a check valve, which prevents the backflow of water and causes the water meter to reverse. The check valve is broken and the water meter doesn't work properly.

Q: What is the nominal diameter of a water meter and the caliber of water?: The nominal diameter of water meters is made according to the caliber of pipes. What kind of caliber of water pipes can be used and what kind of water gauge have been adopted, and it has been standardized!

Q: How to see the water meter?: Unit of measurement of water is cubic (i.e., 1 cubic meters of water is 1 tons). Only the black dial in view the water, because the red indicator is less than 1 cubic meters of the decimal number by indicating not see; this month to check the meter indicates the number of minus last month that this month the utility meter water.

Q: Can the figures on the water meter be changed?: Remove the table: find a water unit worked in friends, help to remove the table, unscrew the four screws inside the stopwatch readings, then put on a table, this number on the meter will turn very slowly. Do not advocate this method, because this is in violation of the household water convention, and do not understand the demolition of the table, it is easy to damage the water meter.

Q: How to let the water meter not go? How to make the water meter slow?: The easiest way is to adjust the water intake and the water outlet, and you will find that the water index is constantly decreasingFaults: easy to catch

Q: Why does the new water meter have no accuracy grade and where is the accuracy level of the water meter?: The new standard has indeed canceled the ABC level meter before the class, not the so-called a table B scale call, is mainly concerned with the ratio of Q3/Q1 in the water meter dial marked as R-, such as R80, said Q3/Q1 was 80. Then can be used to Q2, Q4 equivalent, specific new standard, say no more.

Q: How many degrees is water on a water meter? Is that a ton of water on one side?: The last black figure is a few cubes, that is, a few tons (several degrees), and the red letter is 0.1 cubic meters. 1 cubic meters of water is equal to 1 tons of water. Under normal circumstances, the water meter records the flow rate and the flow is volume, so strictly speaking, the water meter is a measure of volume. The water on the water meter indicated that the water consumption was 1 cubic meters. Once on the water meter, it was 1 cubic meters, or 1 tons.

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