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 Chongqing magnetic meter ☆: 
 My company R & D and production of the Chongqing magnetic water 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 of Chongqing magnetic water meter, Chongqing magnetic meter 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) the Chongqing magnetic meter automatically inside the electric valve closed, the user only need to purchase water used to write into the the Chongqing magnetic meter card "induction zone" to the sensor the Chongqing magnetic meter electric valve can be re-open (ie, the Chongqing magnetic water meter within the remaining water is less than 5m3 to the exhaustion of this period of time, Chongqing magnetic meter five times without water way to remind users to purchase water). To the exhaustion of the remaining water in the Chongqing magnetic water meter, if you do not purchase the water and write the the Chongqing magnetic meter motorized valve will close until the user to purchase water and write Chongqing magnetic water meter within the date. In order to achieve the first to buy the water, the purpose of water ". 
 ? When Chongqing magnetic meter is exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leak, etc.) there is water flow when the by Chongqing magnetic water meter, Chongqing magnetic water meter will continue to be measured, the number counted as negative values ??when the user re-purchase of water and write Chongqing magnetic meter, Chongqing magnetic water 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 Chongqing magnetic meter electric valve does not open the continued closure of the remaining water in the magnetic meter Chongqing 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 Chongqing magnetic 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 Chongqing magnetic water meter has been the ability to attack, but also to limit the behavior that it can not indefinitely Chongqing magnetic meter man-made attack. The Company produced more than other Chongqing magnetic meter each presented two of the company's trademark and warnings tamper shrink film, installation, pre-set into to take over, Chongqing magnetic water meter installation completed and leak testing and qualified, tamper shrink film in the the Chongqing magnetic receiver of the water meter nut, 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. This product in addition to the above characteristics, the following characteristics: (a) to non-contact (radio frequency card) as information carriers, non-magnetic 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 completely overcome the solenoid valve to interference and shutdown lax defects; f unique anti-theft of water, tamper table, anti-reversal device; g. measurement using magnetic cards and LCD Dual Display so as not to affect the the Chongqing magnetic meter accuracy test and verification; 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 Chongqing magnetic water meter and the line marked CJ/T133-2006 Chongqing magnetic meter Standard. 
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 ? A, Hui Yi brand meter Introduction Chongqing, Chongqing magnetic magnetic meter in recent years aimed at Chongqing magnetic meter in a small flow (less than 8L / H) is not measured defect developed. Ordinary the Chongqing magnetic 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 Chongqing magnetic water meter is not measured to obtain water of the magnetic 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 the Chongqing magnetic water meter, it simply does not change the the Chongqing magnetic meter movement in advance, in drip drop out of the water first accumulate, save to a certain amount of suddenly promote Chongqing magnetic meter rotating impeller to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: This series of Chongqing magnetic water meter for the total amount of the high sensitivity of flows through the magnetic 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 Chongqing magnetic meter; 2, adaptability to water quality: the anti-drip institutions and outlet of the drainage channel distance of 4mm, by particles below 4mm, so that the anti-drip institutions will not impurities in the water is clogged or stuck; 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 the anti-submarine The dynamic performance is far superior to the jet and C-level anti-drip the Chongqing magnetic water meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Chongqing magnetic water meter, like), and this 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, 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 the Huiyi Chongqing magnetic all the members of the Water Meter Co., Ltd. sincerely welcome you to Beijing the Huiyi Chongqing magnetic water meter factory guidance visits! 
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