? The ☆ Chongqing card meter № Chongqing, to swipe meter offer № Chongqing credit card water meter price ★ 
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 Chongqing card meter ☆: 
 R & D and production company in Chongqing meter card, RF card as a form of media, a variety of information using sensing input to Chongqing card water meter control CPU, the Chongqing card water meter to the 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) Chongqing card meter will automatically power within its valve closed, the user only with the purchase of water into the Chongqing card write credit card water meter sensing area to sense what will the Chongqing card meter electric valve re-open (ie, the Chongqing card water meter within the remaining water is less than 5m3 to the exhaustion of this period of time, Chongqing card meter five times without water alert the user to purchase water). To Chongqing card the remaining amount of water in the meter exhausted, the user not to purchase water and write Chongqing card water meter within the motorized valve will close until the user to purchase water and write Chongqing credit card meter so far. In order to achieve the first to buy the water, the purpose of water ". 
 ? When Chongqing card meter exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leak, etc.) card meter water flowing through Chongqing, Chongqing card meter will continue to be measured, the number counted as negative values, when the user re-purchase of water and write Chongqing card meter, Chongqing card meter will first deduct the negative values ??(ie, the first overdevelopment of water), if water is not enough deductible newly written negative values ??of super-water Chongqing card water meter within the electric valve do not open and continue to be closed, until Chongqing 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 be induced to purchase water card to (sensing area), you can own electric valve is opened and Chongqing 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 Chongqing card meter of the assault, but also limit the behavior so that it can not be unlimited in Chongqing card meter artificial attack. The Company produced two of the company's trademark and warnings tamper shrink film meter each donated more than other Chongqing card, installation, and its pre-set into the take over on to the Chongqing card meter installed completed and leak testing and qualified, tamper shrink film card meter in Chongqing 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 carrier, no credit card 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 the credit card and LCD Dual Display , Chongqing, so as not to affect the credit card verification and calibration of the 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 GB GB/T778-1996 cold water Chongqing card meter and line marked CJ/T133-2006 Chongqing credit card water meter standard. 
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 ? One, the Huiyi brand Chongqing card meter Introduction Chongqing card water meter is a credit card meter for ordinary Chongqing in recent years in the small flow rate (less than 8L / H) measured at defects. Ordinary the Chongqing 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 use less than the starting flow of this drip way Chongqing card meter not measured access to online credit card tube water, so the water supply enterprises have suffered losses. To solve this problem, Beijing Hui Yi has developed a differential pressure integral anti-drip the Chongqing card meter, simply does not change Chongqing, credit card ahead of the meter movement in drip drops out of the water first accumulated up when save to a certain amount of suddenly promote Chongqing card meter rotating impeller to achieve the purpose of drip measurement 
 ? Two, the product uses and characteristics: This series of Chongqing card meter for high sensitivity to pipe drinking water flowing through the credit card the total amount of 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 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 that 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 dynamic performance far superior to the jet and the C-class anti-drip Chongqing card water meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Chongqing card meter), 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 Hui Yi Chongqing card of all members of the Water Meter Co., Ltd. sincerely welcome you to Beijing Hui Yi Chongqing card meter factory guidance inspected! 
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