? ☆ Hunan offer № smart meter factory № Hunan smart meter the Hunan smart meter price ★ 
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 ? Service phone 18,701,502,378 13,716,900,928 18,701,502,378 
 ? The Hunan smart meter ☆ official website: http://tangcuiqin.jdzj.com 
 ? This page URL: http://www.qinaiping.icoc.cn/ 
 ? My company R & D and production of Hunan smart meter, the RF card as the media will be all kinds of information in the form of an induction input to the control CPU of the of Hunan smart meter, water the Hunan smart 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, every integer (for example, the remaining water to 4m3, 3m3, 2m3, 1m3) the Hunan smart meter will automatically electric valve in its shut down, this time Users only need to purchase water used to write into the the Hunan smart meter card "induction zone" to the induction Hunan smart meter electric valve can be re-open (ie, the water remaining in the Hunan smart meter within less than 5m3 to exhaustion During this time, Hunan smart meter five times without water way to remind users to purchase water). To the exhaustion of the water remaining in the Hunan within the smart meter, less than the purchase of water to and write Hunan intelligent water meter, electric valve will close until the user to purchase water and write Hunan intelligent water meter within the date. In order to achieve the first to buy the water, the purpose of water ". 
 ? Information, please contact Tang cocoa 18701502378 QQ 825727473 
 ? Official website: http://tangcuiqin.jdzj.com http://www.qinaiping.icoc.cn/ when Hunan smart meter exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage etc.) as well as water by Hunan smart meter, Hunan smart meter will continue to be measured, the number counted as a negative value when the user re-purchase of water and write Hunan smart meter, Hunan smart meter will first deduct the negative values ??(ie The first also super water), if water is not enough deductible newly written negative values ??of the super water Hunan smart meter electric valve does not open and continue to be closed until the water remaining in the Hunan within the smart 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 the electric valve to open and work properly, Hunan smart 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 Hunan smart meter attack ability, but also to restrict the behavior so that it can not indefinitely Hunan smart meter man-made attack. The Company produced more than other Hunan smart meter each presented two of the company's trademark and warnings tamper shrink film, installation, on its pre-set into the receiver, the Hunan smart meter installed completed and leak testing and qualified, tamper shrink film in Hunan takeover of the smart meter nut, and 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. In addition to the above characteristics, the product, the following characteristics: (a) non-contact (RF card) information carrier, no mechanical 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 metering display by mechanical and LCD Dual Display , which does not affect the verification and validation of the Hunan smart 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 standards of GB GB/T778-1996 cold water Hunan smart meter "and line marked CJ/T133-2006" Hunan smart meter ". A, Hui Yi brand Hunan smart meter About Hunan smart meter in recent years aimed at the Hunan smart meter in micro flow (less than 8L / H) measured defect developed. The ordinary Hunan smart meter due to movement of the rotating parts and count the gear inertia, so in the measurement process, if the water flow is small to a certain degree 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 Hunan intelligent water meter not measured to obtain the water pipe line of water, so that the water supply enterprises have suffered losses. To solve this problem, Hunan Hui Yi has developed a the Hunan smart meter differential pressure integral anti drip, it simply is not changed in advance of the the Hunan smart meter movement in drip drop out of the water first accumulate, save to a certain amount of suddenly promote the Hunan smart meter impeller rotation drip measurement purposes 
 ? Two, the product uses and characteristics: This series of Hunan smart 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; 16 times more than ordinary Hunan smart meter; 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-level anti-drip the Hunan smart meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (as if the displacement of Hunan intelligent 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 of the Hunan the Huiyi Hunan smart meter Corporation sincerely welcome you to Hunan the Huiyi Hunan smart meter factory guidance visits!