? ☆ the Qiongshan a table are card water meter, to № meter offer of the Qiongshan a multi-card № the Qiongshan a table card water meter price ★ 
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 More than the Qiongshan a table card water meter ☆: 
 My company R & D and production of the Qiongshan a table card water meter is based on RF card as a form of media, all kinds of information using sensing input to Qiongshan a table multi-card meter control CPU, the Qiongshan a table multi-card water meter according to water purchased by the user automatically open the valve the water supply, when the remaining amount of water to less than 5m3 (contain 5m3) but have not yet exhausted every integer (for example, the remaining water to 4m3, 3m3, 2m3, 1m3) the Qiongshan a table card multi-meter will automatically power within its valve closed, the user simply used to purchase water into the meter of the Qiongshan a table multi-card write card "induction zone" to the sensor can be the Qiongshan a table more than electric card meter valve to re-open (the Qiongshan a table within a multi-card water meter the remaining water is less than 5m3 to exhaustion during this time, the Qiongshan a multi-card meter five times without water way to remind the user to purchase water) . If to Qiongshan the remaining amount of water within a multi-card meter exhausted, the user not to purchase water and write the Qiongshan a table multi-card water meter, electric valve will be closed until the user to purchase water and write to Joan Shan multi-card meter. In order to achieve the first to buy the water, the purpose of water ". 
 ? When the Qiongshan a multi-card meter and electric valve is closed in the remaining water exhausted, for some reason (such as electric valve internal leakage, etc.) there is flow through the Qiongshan a table card water meter, the Qiongshan a table The multi-card meter will continue to measure the number of counted as a negative value when the user to re-purchase of water and write the Qiongshan a table multi-card meter, the meter of the Qiongshan a multi-card will be the first net of the negative values ??(ie, the first also super water used), if the newly written the amount of water is not enough deductible super negative values ??of the water, the Qiongshan a table multi-card water meter within the electric valve is not open to the continued closure of the remaining water until the Qiongshan a table multi-card meter to be 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 the electric valve to open and the Qiongshan a table 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). Enabling it to achieve self-lifting the Qiongshan a multi-card meter attack ability, but also to restrict the behavior so that it can not be infinite human attack on the Qiongshan a multi-card meter. The Company produced than other Qiongshan a table card meter for each multi-presented two of the company's trademark and warnings tamper shrink film, installation, and its pre-set into the receiver on, the Qiongshan a multi-card meter installed and leak testing and qualified, it will tamper shrink film set in the Qiongshan a table card water meter to take over the nut, then use the hair dryer (1600w high heat hair dryer) at the tamper heat shrink film at the blow or above 90 ℃ hot water at the shrink film tamper poured, shrink film, shrink and take over the shape of the nut tight coupling. 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 and thus does not affect the verification and validation of the Qiongshan a multi-card meter accuracy; h. overall closed-shell design, anti-attack, waterproof, moisture, fumes, anti-knocking; i. the management of its water sales to read and write cards machine 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 GB GB/T778-1996 cold water Qiongshan a table card meter and line marked CJ/T133-2006 the Qiongshan a multi-card meter "standard. 
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 ? One, multi-card meter About the Qiongshan a table, the Huiyi brand the Qiongshan a table card water meter is developed in recent years, small flows (less than ordinary Qiongshan a multi-card meter 8L / H) measured defect the. The ordinary Qiongshan a multi-card meter due to movement of the rotating parts and count the gear inertia, and therefore 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, and thus small flow can not be measured, one can make the Qiongshan a multi-card water meter is not metering access to the water tube online less than the starting flow of this drip, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a pressure differential-integral anti-drip the Qiongshan a table card meter, it simply does not change the Qiongshan, a table card meter movement in advance, will drop out in drip water first accumulate up to save a certain amount of a sudden promote the Qiongshan a multi-card meter impeller rotation to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: the total amount of the Qiongshan a multi-card meter for high sensitivity to flow through the tube drinking water, its main features are as follows: 1, the smaller the initial flow rate, the initial flow of small at 0.5L / h; more than 16 times the ordinary Qiongshan a table card meter; 2, adaptability to water quality: due to the drainage channel between the anti-drip institutions and outlet distance of 4mm, so through the particles below 4mm. so that the anti-drip institutions will not be blocked or stuck in the impurities in the water; 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 its anti-creep performance is far superior to the jet and C-level anti-drip Qiongshan table card water meter; 4 in the 0.5L / h to 14L / h micro-flow state for the intermittent measurement ( if the displacement the Qiongshan a multi-card meter), and micro-flow range measurement error is smaller; the authority of experts convened by the Ministry of Construction and the China Water Association China to identify the products and technologies, and its technology has reached the domestic advanced 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 
 ? Beijing Hui Yiqiong Hill, a multi-card all the members of the Water Meter Co., Ltd. sincerely welcome you to come to Beijing Hui Yiqiong Hill a table multi-card meter factory guidance inspection 
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