The Inficon CDG025D "Porter" is a high-precision, ambient-temperature Capacitance Diaphragm Gauge (CDG) designed for stable and gas-independent absolute pressure measurement. This specific model features a 100 Torr full-scale range, making it a versatile workhorse for monitoring transition pressures, load-lock venting, and general vacuum process control.
The CDG025D is engineered with a high-purity alumina ceramic sensor, which provides exceptional protection against corrosion and prevents the "zero-drift" commonly associated with metal sensors. Because it is an unheated gauge, it offers nearly instantaneous "Ready" times and lower power consumption, making it ideal for gas panels and space-constrained vacuum systems.