? ☆ the Lianyungang card meter offer № № card meter card water meter price ★ 
 ? The Lianyungang card meter ☆ R & D and production company card water meter, based on the amount of water the form of RF card as the media will be all kinds of information using sensing input to the control CPU card meter, water meter card purchased by the user the water supply valve is automatically opened, when the remaining amount of 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) card meter will automatically within electric The valve is closed, the Users only need to purchase water on the card meter, write cards sensing area to sense what the card meter electric valve to re-open (card meter water remaining 5m3 to the exhaustion of this period, the card meter five times without water way to remind the user to purchase water). To the exhaustion of the remaining water in the card meter, less than the purchase of water and write to card water meter, electric valve will be closed until the user to purchase water and write the 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 18,701,502,378 QQ 1024492555 When the card water meter is exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow meter by the card, the card meter continue to be measured, their number is counted as a negative value, when the users to purchase water and write a card meter, the meter card will first be deducted negative values ??(ie, the first also super water), water newly written enough deductible super negative values ??of the water, the card within the electric meter valve do not open and continue to be closed until the water remaining within the card meter 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 used to purchase water card to (sensing area) induction about, you can own the electric valve open and the 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). Both do their own ability to lift the card meter attack, but also to limit the behavior that it can not indefinitely card meter man-made attack. Produced by our company, multi-presented two of the company's trademark and warnings tamper shrink film than any other card meter each, installation, its pre-set into the receiver on the card water meter installation completed and leak testing and qualified, tamper shrink film in the takeover of the card 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 card 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 GB GB/T778-1996 cold card meter "and the line marked CJ/T133-2006 card meter standard. A Huiyi license card meter Introduction card meter is developed in recent years in a tiny flow for ordinary card meter (less than 8L / H) measured at defects. Ordinary 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 be less than the starting flow of this drip card water meter is not measured to obtain the water of the water pipe-line, so that the water supply enterprises have suffered losses. To solve this problem, Beijing Hui Yi has developed a differential pressure integral anti-drip card meter, simply does not change the card meter movement in advance, in drip drops out of the water first accumulated up when save to a certain amount of suddenly promoted card meter rotating impeller to achieve the purpose of drip measurement 
 ? Two, the product uses and characteristics: This series of 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; 16 times more than ordinary card meter; 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 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 card water meter; 4, 0.5L / h to 14L / h under the micro-flow state (as if the volume for the intermittent measurement card meter), and this 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 Beijing Hui Yi Card Water Meter Co., Ltd. sincerely welcome you to Beijing the Huiyi card water meter factory guidance visits!