? ☆ Chongqing water meter offer № № Chongqing water meter to the Chongqing water meter price ★ 
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 Chongqing water meter ☆: 
 R & D and production company Chongqing water meter, RF card as the media will be all kinds of information in the form of an induction input to the control CPU of the water meter in Chongqing, the Chongqing water meter the amount of water purchased by the user automatically open the valve the water supply, the remaining 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) Chongqing water meter will automatically within the electric valve closed, the user only with the purchase of water into the water meter in Chongqing write card sensing area to sense what to re-open the electric valve in the water meter within Chongqing (Chongqing water meter within the remaining water is less than 5m3 to the exhaustion of this period of time, Chongqing water meter five times without water way to remind users to purchase water). To the exhaustion of the remaining water in the Chongqing water meter, less than the purchase of water to and write Chongqing water meter, electric valve will be closed until the user to purchase water and write the Chongqing water meter within the date. In order to achieve the first to buy the water, the purpose of water ". 
 ? When the Chongqing 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 Chongqing water meter, Chongqing water meter will continue to be measured, the number counted as negative values ??when the user re-purchase of water and write the Chongqing water meter, Chongqing 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 the Chongqing water meter, electric valve does not open the continued closure of the remaining water until the water meter within the 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 normal work of the Chongqing water 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 of the Chongqing water meter attack ability, but also to limit the behavior that it can not indefinitely Chongqing water meter man-made attack. Produced by our company, donated more than other Chongqing water meter for each two of the company's trademark and warnings tamper shrink film, installation, pre-set into the take over the Chongqing water meter installation completed and leak testing and qualified, tamper shrink film in Chongqing took over the nut of the water meter, then use the hair dryer (1600w high heat hair dryer) at the tamper shrink film at blowing 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, water 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 tap water and LCD Dual Display , which does not affect the Chongqing water meter accuracy test and calibration; 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 Chongqing Water meter and line marked CJ/T133-2006 "Chongqing water meter standards. 
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 ? A Huiyi brand Chongqing water meter Introduction to Chongqing water meter in recent years for ordinary the Chongqing tap water meter in the tiny flow (less than 8L / H) non-quantified defect developed. Ordinary Chongqing water meter due to 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 water meter is not measured to obtain the water of the water pipe-line, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a differential pressure points anti-drip the Chongqing tap water meter, it simply is not changed in advance of the Chongqing water meter movement in drip drop out of the water first accumulate, save to a certain amount of suddenly promote the Chongqing water meter impeller rotation to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: This series of Chongqing water meter for the total amount of the high sensitivity of flows through a water pipe 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 water 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-class anti-drip Chongqing water meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement the Chongqing tap water 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 
 ? All the members of the Beijing Hui Yi Chongqing Water Water Meter Co., Ltd. sincerely welcome you to Beijing the Huiyi Chongqing water meter factory guidance visits! 
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