? The ☆ Hainan card meter № Hainan, to swipe meter offer № Hainan credit card meter price ★ 
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 Hainan card meter ☆: 
 Hainan, R & D and production company, credit card meter, based on RF card as media, all kinds of information in the form of an induction input to Hainan card water meter control CPU, the Hainan card meter the amount of water purchased by the user automatically open the valve the water supply, when remaining 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) Hainan card meter will automatically power within its valve closed, the user only with the purchase of water into the Hainan card write credit card water meter sensing area to sense can re-open the electric valve within Hainan card meter (ie, remaining within Hainan card meter water is less than 5m3 to the exhaustion of this period of time, Hainan card meter five times without water alert the user to purchase water). To Hainan card the remaining amount of water in the meter exhausted, the user not to purchase water and write Hainan card water meter within the motorized valve will close until the user to purchase water and write Hainan credit card meter so far. In order to achieve the first to buy the water, the purpose of water ". 
 ? After Hainan card meter exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow through the Hainan card meter, Hainan card meter will continue to be measured, the number counted as negative values ??when the user re-purchase of water and write Hainan card meter, Hainan card meter will first deduct the negative values ??(ie, the first overdevelopment of water), water newly written enough deductible super negative values ??of the water. Hainan credit card within the electric meter valve does not open and continue to be closed until Hainan credit card the remaining water inside the 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 purchase water card to (sensing area) induction, you can own the electric valve is opened and Hainan card meter. 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 self-lifting Hainan card meter of the assault, but also to limit that it can not indefinitely card meter of Hainan human attack. Produced by our company than other Hainan credit card more than a meter each presented two of the company's trademark and warnings tamper shrink film, installation, and its pre-set into the take over on to the Hainan card meter installed completed and leak testing and qualified, tamper shrink film card meter in Hainan take over the nut, and then use a hair dryer (1600w high heat hair dryer) at the tamper shrink film at the blowing or use hot water above 90 ℃ alignment tamper Pour of shrink film, shrink film, shrink to take over the shape of the nut to 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 does not affect the the Hainan credit card verification and calibration of the meter accuracy; h, the 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, can also use the computer network. 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 Hainan card meter "and the line the standard CJ/T133-2006 Hainan card water meter standards. 
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 ? One, the Huiyi brand Hainan card meter Introduction to Hainan card water meter is a credit card meter for ordinary Hainan in recent years in the small flow rate (less than 8L / H) measured at defects. Ordinary the Hainan 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, people can be less than the starting flow of this drip Hainan card water meter not measured to obtain the water 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 Hainan card meter, simply does not change Hainan, credit card ahead of the meter movement in drip drops out of the water first accumulated up when save to a certain amount of when suddenly on the Hainan card meter impeller rotation to achieve the purpose of drip measurement 
 ? Usage and Features: This series the Hainan card meter for the total amount of the high sensitivity to flows 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; ordinary Hainan card meter more than 16 times; adaptability to water quality: due to the drainage channel between the anti-drip institutions and outlet distance of 4mm, by particles below 4mm, so that the anti-drip institutions will not be impurities in the water is clogged or stuck; 3, anti-slip performance: ordinary movement is the flow rate, 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 far superior to the jet and C-class anti-drip Hainan card meter; 4, 0.5L / h to 14L / h under the micro-flow state for intermittent measurement (like displacement Hainan card meter), and this micro- the flow range of measurement error; 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 the leading domestic 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 
 ? Beijing Hui Yihai South swipe Water Meter Co., Ltd. all the members sincerely welcome your card meter factory guidance visits to Beijing Hui Yihai South 
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