? ☆ Dingan meter factory offer fixed security meter factory № № Dingan meter factory price ★ 
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 Dingan meter factory ☆: 
 Our R & D fixed water meter factory is based on RF card as the media will be all kinds of information in the form of an induction input to of Dingan meter plant control CPU, Dingan meter factory the amount of water purchased by the user automatically open the valve the water supply when 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), Honour meter factory automatic electric valve in its closed, the user used only with the purchase of water into Dingan meter factory card write "sensing area to sense the Dingan electric meter factory valve re-open (Dingan meter factory, the remaining water is less than 5m3 to the exhaustion of this period of time, be safe water meter factory with five times without water way to remind the user to purchase water). If to Dingan the remainder of the factory's water meter is exhausted, users do not purchase the water and write the given security meter factory, the electric valve will be closed until the user to purchase water and write the date given security meter factory. In order to achieve the first to buy the water, the purpose of water ". 
 ? Dingan meter factory is exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow through the fixed security meter factory, Dingan meter factory will continue to be measured, the number counted as negative values ??when the user re-purchase of water and write Dingan meter factory, Dingan meter plant will first be less negative values ??(ie, the first also super water), if water is not enough deductible newly written negative values ??of super-water is scheduled for An electric meter factory valve does not open, and the continued closure of the remaining amount of water until Dingan meter factory 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 the electric valve to open and Dingan meter factory 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 do self to lift the water meter factory in Ding-an attack, but also to limit the behavior that it can not indefinitely Dingan meter factory man-made attack. Produced by our company, Dingan water meter factory within each multi-presented two of the company's trademark and warnings tamper shrink film, installation, pre-set into to take over on Dingan meter factory installed completed and leak testing and qualified, tamper shrink film in Dingan meter factory took over the nut, and then use the hair dryer (1600w high heat hair dryer) Shrink Film Department at the tamper to blow 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 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 so as not to affect the of Dingan meter factory accuracy test and verification; h, the 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 of cold water given meter factory and line marked CJ/T133-2006 Dingan meter factory standard. 
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 ? A, Hui Yi brand Dingan meter factory Profile Dingan meter factory defects in development in recent years for ordinary fixed security meter factory in the small flow rate (less than 8L / H) measured up. Common set of security meter factory due to 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, thus the micro flow can not be measured, People can use this drip is less than the starting flow Dingan meter factory is 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 differential pressure integral anti-drip Dingan meter factory, it simply is not change Dingan meter factory movement in advance, the drop out of the water in drip first accumulate, save to a certain amount of suddenly promoted Dingan meter factory impeller rotation to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: this series, Honour meter plant for the total amount of the 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 ordinary Dingan meter factory; adaptability to water quality: due to the drainage channel between the anti-drip institutions and outlet distance of 4mm, by particles below 4mm, so that the 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 Dingan meter factory; 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (as if the volume set security meter factory), and 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 Dingan Water Meter Factory Co., Ltd. sincerely welcome you to Beijing Hui Yi Dingan meter factory plant guide inspection 
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