? ☆ the Hainan table card meter № Hainan, a multi-card meter offer № Hainan, a table card water meter price ★ 
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 Hainan, a table and more card water meter ☆: 
 My company R & D and production of Hainan, a table card meter, based on RF card as a form of media, a variety of information using sensing input to the control CPU of a multi-card meter in Hainan, Hainan, a multi-card meter purchased by the user The amount of water obtained automatically open the valve the water supply, when the remaining amount of water to less than 5m3 (containing 5m3) but have not yet exhausted, and every integer (for example, the remaining water to 4m3, 3m3, 2m3, 1m3) Hainan table card meter will automatically within the electric valve is closed, the user simply used to purchase water into the meter of the the Hainan table card write card "induction zone" to sense the electric Hainan table card water meter valve re-open (ie, the remaining water in Hainan, a table within a multi-card water meter is less than 5m3 to exhaustion during this time, Hainan, a multi-card meter without water five times to remind users to purchase water). To the exhaustion of the remaining water in Hainan, a multi-card meter, the user not to purchase water and write a multi-card meter in Hainan, the motorized valve will close until the user to purchase water and write Hainan a table The multi-card meter. In order to achieve the first to buy the water, the purpose of water ". 
 ? Hainan a multi-card meter and electric valve is closed in the remaining water exhausted, for some reason (such as electric valve internal leakage, etc.), water flow through a multi-card meter in Hainan, Hainan table multi-card meter will continue to be measured, the number counted as a negative value, when the user re-purchase of water and write Hainan table card water meter, Hainan, a multi-card meter will first deduct the negative values ??(ie, the first overdevelopment of water) If the new water written enough deductible super negative values ??of the water, Hainan, a multi-card meter electric valve does not open and continue to be closed until the remaining water in Hainan, a table 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 to make Hainan a table 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 capacity of Hainan, a multi-card meter attack, but also to limit the behavior so that it can not indefinitely on Hainan, a multi-card meter man-made attack. The Company produced more than other Hainan a table within the multi-card meter for each multi-presented two of the company's trademark and warnings tamper shrink film, installation, and its pre-set into the take over on, Hainan a table multi-card water meter installed and leak testing and qualified, tamper shrink film in Hainan, a multi-card meter take over the nut, and then use a hair dryer (1600w high heat hair dryer) at the tamper shrink film at blowing or above 90 ℃ hot water at the tamper shrink film poured shrink film, shrink and take over the shape of the nut tight coupling. 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 so as not to affect Hainan, a multi-card verification and calibration of the meter accuracy; h. overall closed-shell design, anti-attack, waterproof, moisture, fumes, 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 the the GB GB/T778-1996 a table in the cold water of Hainan card meter and line marked CJ/T133-2006 "Hainan table multi-card meter standard. 
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 ? One the Huiyi brand Hainan, a multi-card meter Introduction Hainan, a table card water meter is defective development in recent years, small flows (less than a multi-card meter for ordinary Hainan 8L / H) measured up. Ordinary Hainan, a multi-card meter can not be 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 the counter gear to small flow measured, people can be less than the starting flow of this drip to make Hainan a table card water meter is not measured to obtain water of tube online, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a multi-card meter in differential pressure integral anti-drip Hainan, it simply does not change Hainan, a table card meter movement in advance, will drop out in drip water first accumulated up When you save a certain amount of a sudden promote Hainan, a multi-card meter impeller rotation drip measurement purposes 
 ? Second, the product uses and characteristics: This series of Hainan, a multi-card meter for high sensitivity to the total amount of 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 Hainan multi-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 anti drip body will not be blocked or stuck by impurities in the water; 3, anti-slip performance: general movement is a multi-flow rate, not idling, soft diaphragm can offset part of the water hammer pressure, coupled with anti-drip closure of institutions , so its anti-creep performance is far superior to Hainan, a multi-card meter jet and C-level anti-drip; 4, in the 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Hainan a multi-card meter), 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 Yihai South table Card Water Meter Co., Ltd. sincerely welcome you to the table a multi-card meter factory in Beijing Huiyi Hai Nam guidance visits! 
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