? ☆ the Chongqing table card meter № Chongqing, a multi-card meter offer № Chongqing, a table card water meter price ★ 
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 The Chongqing table multi card water meter ☆: 
 The control CPU of my company R & D and production of a multi-card meter RF card as the media, all kinds of information in the form of an induction entered into a multi-card meter in Chongqing, Chongqing, a multi-card meter purchased by the user. The amount of water obtained automatically open the valve the water supply, when the remaining amount of water to less than 5m3 (containing 5m3) but have not yet exhausted, and every integer (for example, the remaining water to 4m3, 3m3, 2m3, 1m3) the Chongqing table card meter will automatically within the electric valve is closed, the user simply with the purchase of water into the meter of the the Chongqing table card write card "induction zone" to sense the the Chongqing table multi-card meter electric valve re-open the remaining amount of water (ie, Chongqing, a multi-card meter is less than 5m3 to exhaustion this time, Chongqing, a multi-card meter five times without water way to remind users to purchase water). To the exhaustion of the remaining water in Chongqing within a multi-card meter, users do not purchase water and write Chongqing table card water meter, electric valve will close until the user to purchase water and write Chongqing table The multi-card meter. In order to achieve the first to buy the water, the purpose of water ". 
 ? Chongqing a multi-card meter and electric valve is closed in the remaining water exhausted, for some reason (such as electric valve internal leakage, etc.), the water flowing through Chongqing, a multi-card meter, Chongqing table multi-card meter will continue to be measured, the number counted as a negative value, when the user re-purchase of water and write the the Chongqing table multi-card meter, Chongqing a multi-card meter will first deduct the negative values ??(ie, the first overdevelopment of water) If the new water written enough deductible super negative values ??of the water, Chongqing, a multi-card meter electric valve does not open and continue to be closed until the remaining water in Chongqing, a multi-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 induced to purchase water card to (sensing area), you can own the electric valve to open and Chongqing, 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 of Chongqing, a multi-card meter attack ability, but also to limit the behavior so that it can not indefinitely Chongqing, a multi-card meter man-made attacks. The Company produced than other Chongqing, a table within the multi-card meter for each multi-presented two of the company's trademark and warnings tamper shrink film, installation, and its pre-set into the take over on, Chongqing a table multi-card water meter installed and leak testing and qualified, tamper shrink film in Chongqing, a multi-card meter 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 at the tamper shrink film 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 carrier, a table card wear, fast transmission of information, confidentiality and anti-attack performance, high reliability; b. using the LCD shows the total quantities of water purchased, the remaining water and all kinds of information; c 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, the static power consumption is zero; e-. electric control valve is a 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 a table multi-card and dual LCD display, which does not affect the meter accuracy of Chongqing, a multi-card verification and calibration; h overall closed-shell design, anti-attack, waterproof, moisture, anti-smoke, anti-knocking; i its sale of water 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 the GB GB/T778-1996 a table in the cold water Chongqing card meter and line marked CJ/T133-2006 Chongqing, a multi-card meter standard. 
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 ? One, the the Huiyi brand Chongqing multi-card meter Introduction to Chongqing, a table card water meter is a multi-card meter for ordinary Chongqing in recent years in the minor flow (less than 8L / H) is not measured defect developed. Ordinary Chongqing a multi-card meter can not be 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 to small flow measured, people can use less than the starting flow of this drip to Chongqing multi-card water meter is not metering access to a table stuck pipe line of water, so that the water supply enterprises have suffered losses. To solve this problem, Beijing Hui Yi has developed a multi-card meter in differential pressure integral anti-drip Chongqing, it simply does not change the water of Chongqing, table card meter movement in advance, in drip drip out first accumulate up When you save a certain amount of a sudden promote Chongqing, a multi-card meter impeller rotation drip measurement purposes 
 ? Second, the product uses and characteristics: This series of Chongqing, a multi-card meter for high sensitivity to flow through a table and multi-card the total amount of drinking water of its main features are as follows: 1, the smaller the initial flow rate from the start the flow rate is less than 0.5L / h; is 16 times more than ordinary Chongqing multi-card meter; 2, adaptability to water quality: the drainage channel between the anti-drip institutions and outlet distance of 4mm, so by 4mm particles, so that 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 the anti-creep performance is far superior to Chongqing, a multi-card meter jet and C-level anti-drip; 4, in the 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement displacement Chongqing multi-card water meter (as if the same), and micro-flow range measurement error is smaller; 5, of the authority of experts convened by the Ministry of Construction and Water Association to identify the products and technologies, 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 the Huiyi Chongqing multi-card all the members of the Water Meter Co., Ltd. sincerely welcome you to Beijing Hui Yi Chongqing table a multi-card meter factory guidance visits! 
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