IC卡预付费水表

• 产品特点
• 超长待机寿命:锂电池供电，设计使用寿命≥10年;
• 超低功耗:静态功耗≤10uA，年均功耗≤120mA;
• 低压关阀:当电流≤2.7v时，水表自动关阀;
• 防磁攻击:当磁性物体靠近时，水表自动关阀;
• *防护等级:防护等级达到并优于IP68;
• 保密性强:逻辑加密,一表一卡，不可破解复制;
• 断电关阀:当水表线路受到强力攻击切断线路时，水表由内置电容瞬时释放大量电流立刻关阀。

Product features
Ultra long standby life: Powered by lithium batteries, designed for a service life of ≥ 10 years;
Ultra low power consumption: static power consumption ≤ 10uA, annual power consumption ≤ 120mA;
Low pressure valve closing: When the current is ≤ 2.7v, the water meter automatically closes the valve;
Anti magnetic attack: When a magnetic object approaches, the water meter automatically closes the valve;
Maximum protection level: The protection level reaches and is superior to IP68;
Strong confidentiality: logical encryption, one table, one card, non cracked and non replicable;
Power off and valve closing: When the water meter circuit is cut off by a strong attack, the water meter will instantly release a large amount of current from the built-in capacitor and immediately close the valve.

产品参数（中文） Product parameters（English）	参数值（中文） Parameter values（English）
显示内容 Show contents	剩余金额、已购水量、已用金额、电压、版本号等内容
工作环境 Work environment	-10°C~55°C,≤100%RH
气候和机械环境条件等级 Climate and mechanical environmental condition levels	B级
电磁兼容性等级 Electromagnetic compatibility level	E1
供电电源 Power supply	DC2.8V~3.6V
压力损失 pressure loss	≤0.063Mpa
防护等级 Protection level	IP68
静态电流 Static current	10uA