? ☆ given the security IC card water meter the № Dingan IC card water meter offer № Dingan IC card meter price ★ 
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 Given security IC card water meter ☆: 
 Our R & D production, Honour IC card water meter is based on RF card as media will be all kinds of information in the form of an induction input to the control of CPU within the given security IC card water meter, of Dingan IC card water meter purchased by the user water 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), Honour IC card water meter will automatically its electric valve Close Users only need to purchase water placed in the Ding-an IC card water meter to write card "induction zone" to sense what can Dingan IC card water meter electric valve to re-open the remaining water (Dingan IC card water meter less than 5m3 to exhaustion during this time, given the security IC card water meter five times without water way to remind the user to purchase the water). If to the remaining amount of water within the given security IC card water meter is exhausted, the users do not purchase the water and write the Ding-an IC card water meter, electric valve will be closed until the user to purchase water and write inside until the given security IC card water meter. In order to achieve the first to buy the water, the purpose of water ". 
 ? When given the security IC 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 Ding-an IC card water meter, set the security IC card water meter will continue to be measured, the count of the number of negative values ??when the user re-purchase of water and write the set An IC card water meter, the Ding-an IC card meter will first be less negative values ??(ie, the first also super water), water newly written enough deductible super negative values ??of the water, given the security IC card water meter electric valve does not open and continue to be closed until the water remaining within the given security IC card water meter is 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 the electric valve to open and Dingan IC card water meter 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 self-lifting of the attack the ability to set security IC card water meter, and limit the acts that it can not indefinitely Dingan IC card water meter man-made attack. Produced by our company, Dingan IC card water meter for each multi-presented two of the company's trademark and warnings tamper shrink film, installation, pre-set into to take over on the set An IC card water meter installed and leak testing after passing tamper shrink film set to take over in the of Dingan IC card meter nut, and then use a 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. In addition to the above characteristics, the product, the following characteristics: (a) non-contact (RF card) information carriers, electronic wear, fast transmission of information, confidentiality and anti-attack performance, high reliability; (b) with LCD display the total quantities of water purchased, and the remaining water and all kinds of information; 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) electric 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 using electronic and LCD Dual Display , which does not affect the verification and validation of the given security IC card water meter accuracy; h. overall closed-shell design, anti-attack, waterproof, moisture, fumes, anti-knocking; i read and write cards of the sale of water management unit may be 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 given security IC card water meter and line marked CJ/T133-2006 given security IC card water meter standard. 
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 ? A Huiyi brand Dingan IC card meter Introduction to set the security IC card water meter in recent years for a common set of security IC card water meter in the micro flow (less than 8L / H) the development of non-quantified defect. Common set of security IC 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 degree will not be able to promote the movement of the impeller and counter gear, thus the micro flow can not be measured at people less than the starting flow of this drip Dingan IC card water meter is not metering access to the water tube online, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a pressure differential integral anti-drip Ding-an IC card water meter, it simply is not changed, the advance of the Ding-an IC card water meter movement in drip drop out of the water first accumulate, when the save suddenly promoted a certain amount of fixed security IC card water meter rotating impeller to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: the total amount of this series set An IC card water meter used for high sensitivity to flow through the tube 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 Dingan IC card water 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 anti drip institutions do not will be clogged by impurities in the water or get stuck; 3, anti-slip performance: general movement velocity, not idling, soft diaphragm can offset part of the water hammer pressure, coupled with anti-drip closure of the institution, so the anti- creep performance is far superior to the jet and C-level anti-drip set the security IC card water meter; 4, in the 0.5L / h to 14L / h under the micro-flow state for intermittent measurement (like volume set security IC card water meter the same) and micro-flow range measurement error is small; authoritative experts, convened by the Ministry of Construction and the China Water Association, our identification of 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 Yiding An IC Card Water Meter Co., Ltd. sincerely welcome you to Beijing Hui Yiding An IC card water meter factory to guide inspection 
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