Granville-Phillips 500系列冷阴极真空计 GP500冷阴极真空计 苏州无锡成都北京西安重庆肥武汉GP500真空计 厦门上海GP500真空计
Granville-Phillips 500系列冷阴极真空计：
Cold cathode technology traditionally provides longer lifetime than hot cathode because there is no filament to burn out, but the tradeoff was reduced accuracy. The Series 500 Cold Cathode Gauge (CCG) defines a new accuracy standard based on innovative technology and time-tested calibration techniques. In addition, there has never been a good way to determine when a cold cathode gauge is worn to the point that its accuracy has significantly degraded. With a new patent-pending method of determining the pressure dosage over time and combining that with a user-selected environmental factor, the CCG Series 500 provides an indication of when the gauge needs to be serviced or replaced.
冷阴极技术提供了比传统的热阴极更长的寿命，因为没有灯丝烧坏，但代价是降低精度。500系列的冷阴极规（CCG）定义了一个新的精度标准的**技术的基础上，经过时间考验的校准技术。此外，从来没有一个很好的方法来确定当一个冷阴极规穿到了一点，其精度有显着降低。一个新的**法测定压力随时间的剂量，结合用户所选择的环境因素，CCG系列500提供的表时需要维修或更换的指示。