? ☆ Lianyungang dry type water meter of № dry water meter offer № dry water meter price ★ 
 Control the CPU? ☆ my company R & D and production of the Lianyungang dry water meter dry type water meter, based on RF card as media, and input all kinds of information in the form of an induction to the dry type water meter, dry type water meter of water purchased by the user the water supply valve is automatically opened, when the remaining amount of 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) dry type water meter will automatically within the electric The valve is closed, at this time to write cards of just used to purchase water into dry water meter sensing area to sense what the electric valve in the dry water meter re-open the remaining amount of water (ie, dry water meter 5m3 to the exhaustion of this period, the dry type water meter five times without water way to remind the user to purchase water). If to the exhaustion of the remaining water in the dry type water meter, users do not purchase the water and written to the dry water meter, electric valve will be closed until the user to purchase water and write inside until dry water meter. In order to achieve the first to buy the water, the purpose of water ". 
 ? Information, please contact Tang cocoa 18,701,502,378 QQ 1024492555 When dry water meter is exhausted in the remaining water and electric valve is closed, for some reason (such as electric valve internal leakage) flow through the dry water meter, dry type water meter will continue to be measured, the number counted as a negative value when the users to purchase water and write the dry type water meter, dry type water meter will first be deducted the negative values ??(ie, the first overdevelopment of water), if enough water newly written deductible super negative values ??of the water, dry type water meter electric valve does not open but remain closed until the remaining water in the dry 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 the dry type 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 the ability to lift their own dry water meter attack, but also limit that it can not indefinitely dry water meter man-made attack behavior. Produced by our company, multi-presented two of the company's trademark and warnings tamper shrink film than other dry water meter for each installation, its pre-set into the receiver on the dry water meter installation completed and leak testing and qualified, the anti-demolition of heat shrinkable film take over the nut on the dry type water meter, then use the hair dryer (1600w high heat hair dryer) at the tamper shrink film at the 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 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 , which does not affect the dry type water meter accuracy test and verification; 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 GB GB/T778-1996 cold water dry water meter and line marked CJ/T133-2006 dry water meter standard. A the Huiyi brand Introduction dry dry water meter water meter is developed in recent years, small flows (less than ordinary dry type water meter 8L / H) measured defects. Ordinary dry type water meter 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, One way less than the starting flow of this drip dry type water meter not measured to obtain the water pipe line of water, so that the water supply enterprises suffered losses. To solve this problem, Beijing Hui Yi has developed a pressure differential integral anti-drip dry type water meter, it simply does not change the dry-type meter movement in advance, will drop out of the water in drip first accumulate, save to a certain amount of suddenly promote the dry type water meter rotating impeller to achieve the purpose of drip measurement 
 ? Two, the product uses and characteristics: This series of dry water meter 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; 16 times more common dry type water meter; 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 The performance is far superior to the jet and the C-class anti-drip dry type water meter; 4, 0.5L / h to 14L / h under the micro-flow state for the intermittent measurement (as if the volume of dry water meter), 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 dry water meter Co., Ltd. sincerely welcome you to Beijing's the Huiyi dry water meter plant guidance visits!