? The ☆ Nanjing card meter factory № Nanjing card meter offer № the Nanjing card meter price ★ 
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 ? Service phone 18,701,502,378 13,716,900,928 18,701,502,378 
 ? The Nanjing card meter ☆ official website: http://tangcuiqin.jdzj.com 
 ? This page URL: http://www.qinaiping.icoc.cn/ 
 ? My company R & D and production of Nanjing card meter, RF card as the media will be in the form of an induction of a variety of information entered into the the Nanjing card meter control CPU, Nanjing card meter of water purchased by the user automatically open the water supply valve, 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) Nanjing card meter will automatically be within the electric valve Close the Users only need to purchase water used to write card into the the Nanjing card meter "induction zone" to sense the electric valve Nanjing card meter to re-open the remaining (ie, the Nanjing card meter water is less than 5m3 to the exhaustion of this time, Nanjing card meter five times without water way to remind the user to purchase the water). To the exhaustion of the remaining water in the Nanjing card meter, if you do not purchase the water and write their the Nanjing card meter, electric valve will be closed until the user to purchase water and write Nanjing card 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/ after Nanjing card meter exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leak, etc.) and water when the by Nanjing card meter, Nanjing card meter will continue to be measured, the number counted as a negative value, when the users to purchase water and write Nanjing card meter, Nanjing card meter will first be deducted negative values ??(ie, the first also super water), if water is not enough deductible newly written negative values ??of the super water Nanjing card meter electric valve does not open and continue to be closed until the Nanjing card meter The remaining water 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 Nanjing card 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 the Nanjing card water meter has been the ability to attack, but also limit that it can not indefinitely Nanjing card meter man-made attack behavior. The Company produced more than other Nanjing card meter each presented two of the company's trademark and warnings tamper shrink film, installation, on its pre-set into the receiver, Nanjing card water meter installed and leak testing after passing tamper shrink film in Nanjing, the takeover of the card meter nut, and then use a 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 while the nut take over the shape of 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 Nanjing 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 , but also with computer networking. 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 Nanjing card meter and line marked CJ/T133-2006 "Nanjing card water meter standards. Card water meter, a, Hui Yi brand meter Introduction to Nanjing, Nanjing card is developed in recent years aimed at Nanjing card water meter in a small flow (less than 8L / H) non-quantified defect. Ordinary the Nanjing 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 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 at , it is way less than the starting flow of this drip the Nanjing card water meter is not measured to obtain water of the water pipe-line, so that the water supply enterprises suffered losses. To solve this problem, Nanjing Hui Yi has developed a differential pressure integral anti-drip the Nanjing card meter, simply does not change the Nanjing card meter movement in advance, in drip drops out of the water first accumulated up when save to suddenly promoted a certain amount of the Nanjing card meter rotating impeller to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: This series of Nanjing card 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 Nanjing 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 anti drip institutions do not will be clogged by impurities in the water or get stuck; 3, anti-slip performance: general movement velocity, 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 is far superior to the jet and C-level anti-drip the Nanjing card meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Nanjing card meter) and 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, and its technology has reached domestic leading 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 Nanjing Hui Yinan Jing Card Water Meter Co., Ltd. sincerely welcome you to the Nanjing Hui Yinan Jing card water meter factory guidance visits!