? ☆ the Chongqing card meter to № Chongqing card meter offer № Chongqing card meter price ★ 
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 Chongqing card meter ☆: 
 R & D and production of the company the Chongqing card meter, based on RF card as the media will be all kinds of information in the form of an induction input within the control of CPU to the the Chongqing card water meter, the Chongqing card water meter the amount of water purchased by the user automatically open the valve water supply, when the surplus water to less than 5m3 (including 5m3) but have not yet exhausted, and every integer (for example, the remaining water to 4m3, 3m3, 2m3, 1m3) when the the Chongqing card meter automatically inside the electric valve Close Users only need to purchase water use at this time write into the of Chongqing card meter card sensing area to sense Chongqing card water meter electric valve can be re-open the remaining water (ie, the Chongqing card meter less than 5m3 to the exhaustion of this period, Chongqing card meter five times without water the way to remind the user to purchase the water). To the exhaustion of the remaining water in the Chongqing card water meter, the user did not purchase the water and write Chongqing card water meter, electric valve will close until the user to purchase water and write Chongqing card water meter within the date. In order to achieve the first to buy the water, the purpose of water ". 
 ? When the Chongqing card water meter is exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow through the card meter when the Chongqing, Chongqing card meter will continue to be measured, the count of the number of negative values, when the user to re-purchase of water and write Chongqing card meter, the the Chongqing card water meter will first less negative values ??(ie, the first also super water), water newly written enough deductible super negative values ??of water, Chongqing card water meter electric valve does not open remain closed until the remaining amount of water in Chongqing card meter positive so far. When the Company suffered such as magnetic and other external attacks, within one minute inside the electric valve shut down. At this point, the user can be induced to purchase water card to (sensing area), you can own Chongqing card meter electric valve to open and work properly. However, if such an attack accumulated more than 10 times more users to purchase water card will no longer be able to open its electric valve (in case the user man-made attack), high a check card (water management The department only holds) to the electric valve is opened, the same time attack record clear (after the user configuration of the water cards but also because of the attack and then open the 10th). Enabling it to achieve the ability to lift their own Chongqing card water meter attack, but also to limit the behavior so that it can not be infinite on the the Chongqing card meter man-made attack. The Company produced multi-presented two of the company's trademark and warnings tamper shrink film than any other the Chongqing card meter for each installation on its pre-set into the receiver, the Chongqing cassette water meter installed and leak testing after passing tamper shrink film set in Chongqing cassette receiver of the meter nut, and then use the hair dryer (1600w high heat hair dryer) at the shrink film at the blow tamper or above 90 ℃ hot water alignment tamper Pour of shrink film, shrink film shrink while the nut take over the shape of the hoop tight. To split the table must be tamper destruction of heat shrinkable film, thus preventing the artificially split the table for the purpose of stealing water. Products in addition to the above characteristics, as well as the following characteristics: (a) non-contact (RF card) information carriers, cassette wear faster transmission of information, confidentiality and anti-attack performance, high reliability; (b) the use of LCD LCD the total quantities of water purchased, and the remaining water and all kinds of information; c when the remaining water is zero or alarm value, automatically close the valve without water; d the entire system is usually in the off state, static power consumption is zero; (e) electronic control valve patented electric valve to completely overcome the electromagnetic valve interference and shutdown lax defects; f unique anti-theft of water, tamper table, anti-reversal device; g. measurement display card and LCD dual display, so as not to affect the the Chongqing card water meter accuracy test and calibration; h. overall closed-shell design, anti-attack, waterproof, moisture, anti-smoke, anti-knocking; i water sales to read and write card machine used alone, but also with computer networking. The company produces technical parameters are as follows: Working power supply: two 3.6V lithium battery, the working life of 8-10 years; (b) usually work current: 0A; c instantaneous operating current :1-5MA; d. RF card Life time:> 100 000; (e) Working pressure: 1MPa below normal work; (f) the operating temperature range (temperature) :0.3-40 ° C; g. the whole life of 8-10 years. This product complies with the GB GB/T778-1996 cold water Chongqing card water meter and the line marked CJ/T133-2006 the Chongqing card meter "standard. 
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 ? Huiyi brand card water meter Chongqing About Chongqing card meter is defective development of recent years the ordinary Chongqing card meter in the small flows (less than 8L / H) measured up. Ordinary the Chongqing card water meter due to the movement of the rotating parts and count the gear inertia, so in the measurement process if the water flow to a certain extent will not be able to promote the movement of the impeller and counter gear, thus the micro flow can not be measured at people can be less than the starting flow of this drip Chongqing card water meter not measured to obtain water of the cassette tube online, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a differential pressure integral anti drip the Chongqing card meter, it simply does not change, the advance of the the Chongqing card meter movement in drip drops out of the water first accumulate, when the save a certain amount of a sudden promote Chongqing card meter impeller rotation reach dripping measurement purposes 
 ? Second, the product uses and characteristics: This series of Chongqing card meter for high-sensitivity total flow through the cassette pipe drinking water, its main features are as follows: 1, the smaller the initial flow rate, the initial flow rate of less than 0.5L / h; more than 16 times the ordinary Chongqing card meter; 2, adaptability to water quality: due to the drainage channel between the anti-drip institutions and outlet distance of 4mm, so by particles below 4mm, so that the anti-drip institutions will not be blocked or stuck in the impurities in the water; 3, anti-slip performance: ordinary movement velocity, not idling, soft diaphragm can offset part of the water hammer pressure, coupled with anti-drip institutions closed, so its anti-creep performance is far superior to the jet and C-level anti-drip the Chongqing card water meter; card meter, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Chongqing ), and micro-flow range measurement error is small; 5, of the authority of experts convened by the Ministry of Construction and Water Association to identify the products and technologies, and its technology has reached domestic leading level. Can guarantee the normal work for more than 10 years of anti-drip institutions. Conditions of use: the work of the water temperature does not exceed 40 ℃, working pressure is not greater than 1Mpa. Four, show error: less than the minimum flow (Qmin) of the trace does not count; from including minimum flow (Qmin) to but excluding the boundaries of flow (Qt) of low district: ± 5%; from including the boundaries of flow (the Qt) to include overload In the upper zone of the flow (Qmax): ± 2%. Pressure loss: △ ≤ 0.1Mpa 
 ? All the members of the Beijing Hui Yi Chongqing card water meter Co., Ltd. sincerely welcome you to Beijing the Huiyi Chongqing card water meter factory guidance visits! 
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