? Shiyan meter prices 
 ? Beijing the Huiyi meter Hubei branch ☆ Shiyan meter price № the Shiyan meter price quotes № to Shiyan meter price price 
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 ? My company R & D and production the Shiyan meter price, based on RF card as the media will be in the form of an induction of a variety of information entered into the the Shiyan meter price control CPU inside the water the Shiyan meter price purchased by the user automatically open the valve the water supply, When the remaining water to less than 5m3 (including 5m3) but have not yet exhausted, every integer (for example, the remaining water to 4m3, 3m3, 2m3, 1m3) Shiyan meter prices will automatically electric valve in its shut down, this time Users only need to purchase water with the written card into the the Shiyan meter price sensing area to sense can re-open the electric valve in the the Shiyan meter price (ie, the remaining water in Shiyan meter price is less than 5m3 to exhaustion During this time, the Shiyan meter prices five times without water way to remind users to purchase water). To the the Shiyan meter price of the remaining water is exhausted, users do not share the water and write it to within a the Shiyan meter price, the electric valve will be closed until the user purchase a new water the write Shiyan meter price until. In order to achieve the first to buy the water, the purpose of water ". 
 ? M after Shiyan meter price exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow by Shiyan meter price when the Shiyan meter price will continue to be measured, the number of total negative values ??when the users to purchase water and write Shiyan meter price, Shiyan meter prices 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 , the the Shiyan meter price of electric valve does not open and continue to shut down, until the Shiyan meter variety of meter 
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 Within the remaining water was 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 open and the price of Shiyan 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 Shiyan meter price has been the ability to attack, but also to limit the behavior so that it can not be infinite on the the Shiyan meter price artificially attack. Produced by the Company, presented two of the company's trademark and warnings tamper shrink film each within a multi-meter price than other Shiyan, installation, pre-set into the connector tube, Shiyan meter prices installed and leak testing and qualified, tamper shrink film meter price in Shiyan connector nut, then use the hair dryer (1600w high heat hair dryer) at the shrink film at the blow tamper or above 90 ℃ hot water alignment tamper Pour of shrink film, shrink film, shrink according to the connector pipe nut shape to 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, no mechanical 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 metering display by mechanical and LCD Dual Display , thus does not affect the accuracy of the verification and validation of the the Shiyan meter price; h. 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 standards of GB GB/T778-1996 "cold water the Shiyan meter price and the line marked CJ/T133-2006" Shiyan meter price ". A, Hui Yi brand Shiyan meter price About Shiyan meter prices in recent years for ordinary the Shiyan meter price in small flows (less than 8L / H) measured defects developed. Ordinary the Shiyan meter price 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, People can use way less than the starting flow of this drip the Shiyan meter price is not measured to obtain the water of the water pipe-line, so that the water supply enterprises have suffered losses. To resolve this issue, Hui Yi has developed a pressure differential-integral anti-drip the Shiyan meter price, it simply does not change, the advance of the the Shiyan meter price movement in drip drops out of the water first accumulate, save to a certain amount of suddenly promote Shiyan meter price of impeller rotation to achieve the purpose of drip measurement 
 ? Second, the product uses and characteristics: This series of Shiyan meter price for the total amount of the high sensitivity of flows through a water pipe 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; more than 16 times the ordinary the Shiyan meter price; 2, adaptability to water quality: the anti-drip institutions and outlet of the drainage channel distance of 4mm, by particles below 4mm, so that the anti-drip institutions will not impurities in the water is clogged or stuck; 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-submarine The dynamic performance is far superior to the jet and C-level anti-drip the Shiyan meter prices; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (like displacement Shiyan meter price), and this 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, 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 
 ? The Huiyi Shiyan meter price Co., Ltd. of all members sincerely welcome you to Huiyi the Shiyan meter price factory guidance visits!