REBUILT Granville Phillips 280 Ion Gauge Controller with Process Control and Autorange for High Vacuum Measurement
These REBUILT Granville Phillips (Model 280) ion gauge controllers feature autoranging and process control and are precision instruments designed to indicate high vacuum pressures from 1 to 1x10-8 Torr. The ion gauge allows for pressure measurement in the 9x10-4 to 1x10-8 Torr range. This basic unit is comprised of a power supply, electrometer, emission controller and ion gauge meter. These Granville Phillips 280 high vacuum ion gauge controllers operate on either 115 or 220 VAC. Ion gauge cable and ion gauge tubes are available but sold separately.