○Introduction to the meter:
◎Intelligent water meter with radio frequency card is an ICcard water meter with radio frequency card(non-contactcard) as the information medium. It consists of water sale management system. water meter.and radio frequency card.The meter has the advantages of small capacity,light weight,low power consumption,high preciseness,counter-interference,water resistance,oil-resistance,excellent reliability,and convenient use and installation.It may achieve functions of data collection,treatment,display,storage,and auto control. It may be applied for water supply management informationization and mode-rnization.

○Product standards and main technical indices:
◎Product technical standards CJ/T133-2001
◎Maximal accepted deviation of the water meter conforms to the requirements specified in GB/T778.1-1996B.
◎Nominal pressure:1MPa
◎Pressure loss≤0.1MPa
◎Working voltage:DC3.6V
◎By-stand current:＜5u A
◎Controller reliability≥2000h
◎Electrical control valve＞5000times
◎Application temperature:cold water meter:0℃-30℃
hot water meter:30℃-90℃

○Major function characteristics:
◎Graded water price function:the meter charges for water consumption in accordance with the pre-set graded water price.
◎Remnant amount alarm function:the valve will close oncef the remnant amount(value) reachs the pre-set graded alarm value. The use may insert the card to open the valve.The valve will close if the value expiresuntil momey is stored in the card.
◎Function of water recovery at card return:The user may process water recovery,value recovery ,or card return procddures.
◎Loss report at processing new card: The use needs to process new cards in relating management terminal office. The original card will become invalid after the system processes the new card.
◎The function of writing the card by the data:The management terminal will collect water meter use data from the IC card each time when the user uses water ,including consumption amount ,remnant amount ,present monthly amount,latest 12 months water consumption,valve status, battery status ,and meter level.
◎Liquid crystal display functions:The meter display remnant value and the current total water cosumption on the liquid crystal display.
◎Counter magnetic interference:The watermeter valve will close if interferde by strong surrounding magnetic field,resuling in measuring failure.The valve will automatically open after the magnetic field is eliminater.
◎Voltage monitoring function:The valve will close after alarming if the battery voltage reaches the set limit.It reminds you of changing the battery to keep the information in the water meter.
◎Auto valve maintenance function: The valve will open and close periodically in case it may be mlocked by incrustation.
◎Closure: The meter takes the advantage of radio frequency by radio information transfer,with functions of water-resistance,anti-humidity ,and counter personal attack.