? ☆ Tianjin card meter № Tianjin card meter quote № Tianjin card meter price ★ 
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 Tianjin card meter ☆: 
 Tianjin, R & D and production company, credit card meter, based on RF card as media, all kinds of information in the form of an induction input to Tianjin card meter control CPU, the Tianjin card meter to automatically open the valve the water supply amount of water purchased by the user, 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 Tianjin card meter will automatically inside the electric valve closed, the user only with the purchase of water into the Tianjin card water meter card to write the sensing area to sense to reopen the electric valve Tianjin card meter (the Tianjin card meter, the remaining water is less than 5m3 to the exhaustion of this period of time, Tianjin card meter to alert the user to purchase water) five times without water. To Tianjin card the remaining amount of water in the meter exhausted, users do not purchase the water and write Tianjin card water meter within the motorized valve will close until the user to purchase water and write Tianjin credit card meter so far. In order to achieve the first to buy the water, the purpose of water ". 
 ? When Tianjin card meter exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leak, etc.) card meter water flowing through Tianjin, Tianjin card meter will continue to be measured, the number counted as negative values ??when the user re-purchase of water and write Tianjin card meter, Tianjin card meter will first deduct the negative values ??(ie, the first overdevelopment of water), if water is not enough deductible newly written negative values ??of super-water Tianjin credit card within the electric meter valve does not open and continue to be closed until Tianjin credit card the remaining water inside the water meter is 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 electric valve is opened and Tianjin 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). Enabling it to do own to lift Tianjin card meter the ability to attack and to limit that it can not indefinitely card meter Tianjin human attack. Produced by our company than any other Tianjin credit card more than a meter each presented two of the company's trademark and warnings tamper shrink film, installation, and its pre-set into the take over on to the Tianjin card meter installed completed and leak testing and qualified, tamper shrink film meter card in Tianjin take over the nut, and then use a hair dryer (1600w high heat hair dryer) at the tamper shrink film at the blowing or use hot water above 90 ℃ 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, 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 Tianjin credit card verification and calibration of the meter accuracy; h. overall closed-shell design, anti-attack, waterproof, moisture, anti-smoke, anti-knocking; i its 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 the GB GB/T778-1996 cold water Tianjin card meter and line marked CJ/T133-2006 Tianjin card water meter standards. 
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 ? One the Huiyi brand Tianjin credit card meter About Tianjin card meter is developed in recent years, credit card aimed at Tianjin meter 8L / H) measurement of small flows (less than defects. Ordinary Tianjin credit card water meter due to 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 Tianjin card water meter is not measured to obtain a multi-card tube online water so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a differential pressure integral anti-drip Tianjin card meter, it simply does not change the Tianjin credit card ahead of the meter movement in drip drop out of the water first accumulate, save to a certain amount of suddenly promote Tianjin card meter impeller rotation reach dripping measurement purposes 
 Small? Usage and Features: This series Tianjin card meter for high sensitivity to flow through multi-card the total amount of drinking water of its main features are as follows: 1, the smaller the initial flow rate, initial flow at 0.5L / h; more than 16 times the ordinary Tianjin 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 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 the C-class anti-drip Tianjin card meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Tianjin 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 
 ? Beijing Huiyi Tianjin card of all members of the Water Meter Co., Ltd. to sincerely welcome you to Beijing Hui Yi Tianjin card meter factory guidance inspected! 
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