? ☆ the Hainan mechanical water meters offer № № Hainan mechanical water meter the Hainan mechanical meter price ★ 
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 Hainan mechanical meter ☆: 
 My company R & D and production, the Hainan mechanical meter, based on RF card as the media will be all kinds of information in the form of an induction input to the control CPU of Hainan mechanical water meter, water the Hainan mechanical water meter purchased by the user, automatically open the valve the water supply when the 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 mechanical meter will automatically power within its valve closed, the user only with the purchase of water into the Hainan mechanical water meter to write card sensing area to sense mechanical water meters within the Hainan electric valve can be re-open (ie, the Hainan mechanical water meters within the remaining water is less than 5m3 to the exhaustion of this period of time, Hainan mechanical meter 5 times without water way to remind users to purchase water). To the exhaustion of the remaining water in the Hainan mechanical water meter, the users do not share water and write Hainan mechanical water meter, electric valve will close until the user to purchase water and write Hainan mechanical water meters within the date. In order to achieve the first to buy the water, the purpose of water ". 
 ? After Hainan mechanical 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 Hainan mechanical water meter, Hainan mechanical meter will continue to be measured, the number counted as negative values, when the users to purchase water and write Hainan mechanical meter, Hainan mechanical meter will first be less negative values ??(ie, the first also super water), if water is not enough deductible newly written negative values ??of super-water Hainan mechanical water meter electric valve does not open continue to be closed up the Hainan mechanical water meters within the remaining water 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 work properly, Hainan mechanical 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 self-lifting the Hainan mechanical meter was the ability to attack, but also to limit the behavior so that it can not indefinitely Hainan mechanical water meter man-made attack. The Company produced more than other Hainan mechanical water meters for each presented two of the company's trademark and warnings tamper shrink film, installation, pre-set into to take over, the Hainan mechanical water meter installation completed and leak testing and qualified, the anti-demolition of heat shrinkable film set on the Hainan takeover of the mechanical water meter nut, and then use the hair dryer (1600w high heat hair dryer) at the tamper shrink film at the blow or above 90 ℃ hot water 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 and thus do not affect the the Hainan mechanical test and verification of 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, 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 the the GB GB/T778-1996 cold water Hainan mechanical water meter and the line marked CJ/T133-2006 Hainan mechanical meter Standard. 
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 ? A Huiyi brand mechanical water meters Profile in Hainan Hainan mechanical water meters in recent years for ordinary the Hainan mechanical water meter in the tiny flow (less than 8L / H) the development of non-quantified defect. Ordinary the Hainan mechanical water meters 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 the Hainan mechanical water meter is 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 Hainan mechanical water meter, it simply is not changed the Hainan mechanical meter movement in advance, will drop out of the water in drip first accumulate, save to a certain amount of suddenly promote the Hainan mechanical meter impeller rotation drip measurement purposes 
 ? Second, the product uses and characteristics: This series of Hainan mechanical water meters 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; 16 times more than ordinary Hainan mechanical meter; 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 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 the Hainan mechanical meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Hainan mechanical water meter), and 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 
 All the members? Beijing Huiyi Hai South mechanical water meter Co., Ltd. sincerely welcome you to Beijing Hui Yihai South mechanical water meter factory guidance visits! 
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