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| No.12428312
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Information Name: | Zhoukou RF card meter sale |
Published: | 2014-04-02 |
Validity: | 3000 |
Specifications: | DN15-300 |
Quantity: | 10000.00 |
Price Description: | |
Detailed Product Description: | Zhoukou RF card meter aftermarket Ⅹ Chen 13811170697, low water meter price, non-contact water meter, water meter, non-contact water meter, water meter new rural construction and renovation, industrial wellhead meter, water meter, good quality, low price! Our stage dripping table usage???? Our water measurement and management should be said can be divided into three stages. The first stage is no water, we casually use; second stage is mechanical, hand-site lookup; third stage is the water table and the water table, science and technology to improve efficiency, active-site users to pay water bills. But the two phases of the three phases are present after a similar problem: the user to steal water. Means to steal a lot of water, the most popular is dripping. Meter rotor principle for its work, and the inevitable presence of an initial measurement of parameters, which we call starting flow. When the water flow is less than this parameter, the flow meter can not feel the movement, it can not be measured. ???????? Demand in some sectors, there have been many claims to drip water meter on the market, these principles meter varies, but basically a fuss about the starting flow, here we analyze about the use of these meters. ???????? Drip table first class: the movement is still rotor type. In order to overcome the pressure generated by the mechanical structure of its own requirements, these tables using a headache medicine head way in the inlet of the table adds a small hole structure. Holes directly into the impeller, when the amount of water, the water pipes go directly to normal, when a small water flow is very small, the water inflow through the hole, because the water flow out from the hole of the pressure is amplified, so you can push the impeller rotation, looks really was dripping measure it. But this approach is self-deception, because of the increased construction of this hole, the flow curve will become two, simply can not be measured accurately, and enlarged pores can not control the water pressure is also within a reasonable range. This meter looks so sensitive, in fact, not even the normal measurement is not accurate, and is a real forest for the trees. ???????? Second category drip table: the movement is still rotor type. Design changes using the movement of materials and institutions, so watch movement sensitivity is improved to some extent. Such meters should be said that is the way to go, but unfortunately this type of meter in reality it is difficult to put into use. Because the water flow inside the tubes is not static, it has a very slight whirl flow and volatility. This internal movement of ordinary water meter there will be no induction, because it is very weak, but the meter is not after such changes, minor fluctuations can cause the meter sensor. This is why we can hear consumer complaints, obviously the home of all faucets are closed, and no leaks where they kept the meter pointer forward or reverse, there is a big difference between the actual water consumption and measurement data. This larger meter drip can be done, but the kind of trouble thus far stolen water. ???????? Third category drip table: movement is positive displacement. Volumetric water meter is widely recognized as a high measurement accuracy design principles. So this type of meter is fully qualified, at home and abroad are also widely used. But there is one of the most fatal problem is extremely positive displacement meter for water quality requirements, water can be used abroad, and to the country is basically used in drinking water pipes, that is our understanding of pure water. The only way to ensure the normal use of water displacement meter, if I domestic water pipes, not to mention the water quality in the scaling problem, debris inside the pipe alone is enough to destroy the movement structure volumetric water meter, making it damage or can not be accurately measured. ???????? According to the above analysis and market reflect actual use, visible in our current reality, software and hardware application requirements have not yet reached drip table. Drip is a trend, but not blind to drip and forest for the trees, after all, is the top priority accurate measurement meter. German energy meter water meter production team, practitioner for more than 10 years, producing several one million water table. German energy meter outsourcing parts and components, the size of the industry are the top three major suppliers to ensure stable and reliable. ?? German energy meter to de-centered, can not form, intended to reflect the company's business objectives: making a good return to the essence of the German energy metering characteristics Table 1 Conditions:??????. Temperature 0.1 ~ 30 ℃ 2 Pressure Level:. MAP10 3 climatic and mechanical environmental safety class:. C Class 4 Electromagnetic Compatibility Level:. E2 5 flow profile sensitivity levels:. U10 D5 6 Pressure loss level:??.. △ P25 7 maximum permissible error . ?? First, the main technical performance 1, the working environment temperature :0-60 ℃ 2, relative humidity: ≤ 85% 3, the measured temperature:???? Water table 0-50 ℃; water table 0-90 ℃; Pure water meter 0-35 ℃ 4, working pressure:?? 0.02MPa ~ 1MPa 5, the technical parameters:?? accuracy level and flow range (see table below) nominal diameter (DN) mm measured level???????? maximum flow Qmax???? nominal flow Qn???? transitional flow Qt???? minimum flow Qmin???? starting flow Qs ≤???? minimum reading???? maximum reading m / h?? ?? m???????????????????????????? 15???? A???? 3???? 1.5??? ? 0.150???? 0.045???? 0.014???? 0.1???? 99999.9 B???? 0.120???? 0.030???? 0.010???????????? ???????? 20???? A???? 5???? 2.5???? 0.250???? 0.075???? 0.019???????? B?? ?? 0.200???? 0.050???? 0.014???????????????????? 25???? A???? 7???? 3.5? ??? 0.350???? 0.105???? 0.023???????? B???? 0.280???? 0.070???? 0.017???????????? ???????? social significance of water meter products: 1, scheduled water, automatic toll collection, use price leverage to promote control of water, real water conservation; 2, free meter reading, water, save a lot of manpower and resources, to eliminate costs owed; 3, to avoid door meter reading, to avoid disturbing the user, easy living; 4, the computer management software regulation of water, water, water management to achieve scientific. Unique Features tap water meter: 1, zero-power technology to ensure the included battery more than eight years; water meter main functions: meter: When users tap the remaining water is 0:00, automatically close the header valves are prohibited water users. Alarm function: battery voltage, the remaining water shortage off valves, valves are failures and misuse, water alarm can be displayed or valves are controlled by. Battery activation function: to prevent the existence of hysteresis effects lithium, water regularly discharge activate the battery. Magnetic interference alarm function: the meter when subjected to external magnetic interference or damage to the meter line for the trust, you can turn off the water valve to prevent users from illegally; After the withdrawal of outside attack, using a user card can be restored to normal. Prevent water accumulation function: When the remaining water meter higher than Delta limit, users will be refused entry to the new purchase of water meter, only when the remaining water in the table below under the Delta limit the amount of water allowed to enter a new share water meter. Check: Check the card can be used to read all the data in the meter for maintenance personnel, backstage management system check analysis. Water feature: You can write a user card to purchase water meter, when the share of water use, namely, the remaining water is zero, the valve closes off water users, users only pay once again purchase water and purchased water meter is written by the user card After the recovery continues to automatically open the valve with water. @ A card table functionality through a user can view the remaining water card table, more than just the completion of this water meter charges, effectively solve the problem of a multi-user management table, each user can manage up to 8 cards Only meter water meter magnetic attack function: double reed due to sampling techniques, when the two reed switches are simultaneously pull (dry sorrow caused by the magnetic field), the alarm is displayed and an error message, which means that the magnetic dry worries errors, valve closed; magnetic dry worries disappear when the valve is opened, the remaining water is displayed on the LCD screen. Water meter query function: This system uses a card table manner, due to limitations of the capacity of the card, table card details need to be a query by query, you can query the contents are: the user's user number, the cumulative number of purchases, table the remaining water, the total water consumption, limiting purchases, the child table number, battery status, valve status, Zhoukou RF card meter aftermarket Ⅹ Chen 13811170697 |
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Copyright © GuangDong ICP No. 10089450, Beijing Deneng Instrument Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 2294398 visitor
Copyright © GuangDong ICP No. 10089450, Beijing Deneng Instrument Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility