LaboStar 7 TWF DI and UV
Ultra pure water system
Catalog no. 2231 & 2232
Page 10 of 26
When switched on, the input solenoid valve and the RO pump deliver feed water to the RO module. Type III
water is produced by the prefiltration and reverse osmosis module and is stored in the tank. The Type III
water quality (conductivity measurement Q1) is displayed on the system monitor during production. Yield
is improved by allowing part of the concentrate to flow back to the RO module; the rest flows via a restricted
pipe to the waste water outlet. Type III water is extracted from the storage tank via the tube equipped with a
ball cock. A pressure-relief valve (regulator) can regulate the pressure of the feed water if too high.
开机后，进水电磁阀打开、
RO
供水泵启动为
RO
膜供水，通过预过滤和反渗透膜处理的水被称为
III
类用水，
储存在水箱中，在产水过程中，
III
类水的水质
Q1
的数值可以在控制屏上显示出来，通过调节浓缩水的回流量
可以提高
III
类水的产水量，具体方法是在浓缩水排放管中放置合适的限流阀。水箱中的
III
类水通过一根带有
球阀的软管向外提供。如果进水压力太高，可以调节调整进水处的压力调节阀。
The circulation pump delivers product water from the storage tank via a UV oxidizer (LaboStar 7 TWF UV)
and a polisher module to the dispenser. The water circulates in the system when no water is being
collected.
循环水泵的作用是将水箱里的水输送给紫外线
UV
灯、抛光柱，最后到供水龙头。当不用水时，系统处于循环
状态。
The UV oxidizer creates free hydroxyl radicals (OH
-
) that oxidize organic components in the water. The
polisher module is filled with ultrapure activated carbon and ion exchange resin of the highest
semiconductor quality. The activated carbon filters organic components and remaining particles out of the
water. The ion exchange resin removes residual salts from the water. The quality of the product water in the
circulation loop is continuously monitored via conductivity measurement cell Q2. Water temperature is
also monitored.
紫外线灯能够使水中产生羟基
(OH
-
)
离子，从而去除有机物。抛光柱的内部填充了超纯的活性炭和最高级别的
半导体品质的离子交换树脂，活性炭能够过滤掉水中的有机物和颗粒，离子交换树脂则能去除水中残留的盐
分。循环管路中的水质通过
Q2
显示在屏幕上，系统可以对其进行不间断地监控，水的温度也可以被监控。
The product water is collected via a dispenser. Small amounts of water are tapped off by applying gentle
pressure to the valve opener. For larger quantities of water, the dispenser valve is opened to the continuous
flow position. If no water is being collected, it will circulate in the product water loop in order to maintain the
highest level of product water quality. The sterile filter fitted to the dispenser has a 0.2 µm pore filter that
prevents contamination of the system and filters bacteria out of the water.
最终的产品水通过供水龙头被收集起来，需要少量的用水，可以通过轻按水龙头“压柄”获取，大量用水时，
可以将水龙头的“压柄”搬至连续供水的位置，如果不用水，系统处于循环状态以保持产水的最高品质。无菌
过滤器安装在水龙头上，它是由
0.2
微米孔径的滤芯构成，可以去除污染物及细菌。
