? ☆ fixed placement card meter № given placement card meter offer № given the the placement card water meter price ★ 
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 Will be placed to card meter ☆: 
 Company R & D and production of fixed placement card meter, based on RF card as a media of all kinds of information in the form of an induction input to the control CPU fixed placement card meter, fixed placement card water meter of water purchased by the user automatically open the valve water supply, when the surplus 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) when given placement card meter will automatically its electric valve Close Users only need to purchase water on the given placement card meter card write "sensing zone", then go to sensing what can be given placement card meter electric valve to re-open the remaining amount of water (ie, fixed placement card meter less than 5m3 to exhaustion during this time, given the placement card meter to remind users to purchase water) five times without water way. If the remaining water to set the placement card meter runs out, users do not share water and write fixed placement card water meter, electric valve will close until the user to purchase water and write inside until a given placement card meter. In order to achieve the first to buy the water, the purpose of water ". 
 ? When the fixed placement of the card meter is exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow through the fixed placement of the card water meter, given the placement card meter will continue to be measured, the count of the number of negative values, given placement card users to purchase water and write the given placement card meter, the meter will first deduct the negative values ??(ie, the first overdevelopment of water), water newly written enough deductible super negative values ??of the water, given the placement of electric card meter valve does not open but remain closed until given the placement of the remaining amount of water within the card meter so far positive. 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 given to placement of the card water 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). Both do their own ability to lift the fixed placement of the card meter attack, but also to limit the behavior so that it can not indefinitely given placement card meter man-made attack. Produced by our company, other than the fixed placement of the multi-gift card water meter for each two of the company's trademark and warnings tamper shrink film, installation, pre-set into the take over the placement card will be given water meter installed and leak testing after passing tamper shrink film set in the fixed placement card meter to take over the 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 carriers, electronic 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 electronic and LCD Dual Display , which does not affect the scheduled placement card verification and calibration of the meter accuracy; h. overall closed-shell design, anti-attack, waterproof, moisture, fumes, anti-knocking; i the sale of water to read and write card 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 GB GB/T778-1996 "cold water given to placement of the card water meter and the line marked CJ/T133-2006 given placement card water meter standards. 
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 ? A, Hui Yi license given placement card water meter Introduction given placement card meter in recent years in the micro flow meter for ordinary fixed placement card (less than 8L / H) measured defects developed. Common set of inserted 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 at people can use less than the starting flow of this drip to set the inserted card water meter not measured to obtain the water tube online, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a card meter differential pressure integral anti-drip set placement, simply does not change the fixed placement card water meter movement in advance, the drop out of the water in drip first accumulate when the save suddenly promoted a certain amount of fixed placement card water meter rotating impeller to achieve the purpose of drip measurement 
 ? Two, the product uses and characteristics: This series of fixed placement card the total amount of water meters for high sensitivity to flows through the tube 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 the ordinary fixed placement of the 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 the C-class anti-drip set placement card water meter; 4, in the 0.5L / h to 14L / h under the micro-flow state for intermittent measurement (like displacement of the inserted card meter does) 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 Beijing Hui Yi Dingan Card Water Meter Co., Ltd. sincerely welcome you to Beijing Hui Yi Dingan card water meter factory guidance visits! 
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