Product Overview: 
 This series of water passing through the pipeline is used to measure the total water volume of instruments, through the first payment, the settlement after the use of management, completely changed the traditional way of water meter payment. Non-contact type RF card as the media, it will be all kinds of information from the input table in the control system, so that the table can be purchased pre-paid by users of the water supply valve to open automatically, to the alarm value or the exhaustion of water, close the valve automatically , interrupted water supplies, and LCD display prompts the user for purchase of water, to achieve pre-payment control; It can also record transfer the operation table, through the computer, the system management software under the operating conditions in the table shown, effective control can be implemented , thus changing the past arrears of water, saving water sector property management and the human, material and financial resources, improve management efficiency. Base table of the product independently developed by a small movement of the structure and low torque ball valve, the valve opens with high sensitivity and low torque; in the circuit on the use of advanced microprocessors, so that water has a very high interference immunity, reliability, high accuracy and low power consumption performance; its compact design, beautiful modeling. 
 The company's customer requirements for the development of various multi-jet wet type cold water form a small, small dry water table, small liquid seal water table, water table of four series of drip. Each series can provide a form of a card, a table number cards. Specifications: Full compliance with national standards for product performance GB/T778-1996 "cold water", the national industry standard CJ/T133-2001 "radio frequency card water table", the Beijing Local standard JJF (Beijing) 33-2003, "Kaka cold RF meter measuring and testing norms. " 

 Main technical parameters: 
 Water temperature: 0.1 ℃ ~ 40 ℃ (cold table) 0.1 ℃ ~ 90 ℃ (water table) 
 Operating voltage: 3.6V/2.4Ah lithium battery (replaceable); 
 Measurement Level: B grade; 
 Static power consumption: ≤ 30μA; 
 Static current: ≤ 7μA 
 Battery life: ≥ 6 years 
 Working pressure: ≤ 1.6Mpa 
 Pressure loss: ≤ 0.1Mpa 
 Leakage: ≥ 0.2MPa water pressure, the valve leakage ≤ 2L / h 
 Controller accuracy: ≤ 0.1% 
 Opening and closing valve time: ≤ 7S 
 Data Retention: Data self-memory, hold time ≥ 10 years. 
 Use: indoor installation, the surrounding environment from direct sunlight, no harmful gases, no strong electromagnetic interference. Water table: medium temperature range: 0 ℃ -45 ℃, relative humidity of not more than 93%. 
 Water: tap water meet the national standards. 

 Features: 
 1, RF card (Mifare One Card) easy to operate, fully enclosed body of water table performance 
 2, a form of recorded water flow 
 3, the remaining water shortage warning off valve, open valve card 
 4, the remaining amount of water to zero the valve is closed, the user water and then only after purchase water 
 5, the internal clock circuit periodically switching valve to prevent the valve because of rust 
 6, detailed image of the LCD display, power-down data is not lost 
 7, micro-power design Battery life ≥ 6 years 
 8, the use of independent design of small ball, low power consumption, pressure loss 

 Use: 
 1, widely used in homes, apartments, commercial buildings and other charges by household water use situation; 
 2, with electricity, gas and a card access control systems such as sharing, easy management.