| Granville Phillips 280 Ion Gauge Controller With Dual TC and Autorange for High Vacuum Measurement
These Granville Phillips (Model 280) ion gauge controllers feature dual thermocouple gauges, autoranging, & process control and are a precision instrument designed to indicate high vacuum pressures from 1 to 1x10-8 Torr. The two independent thermocouple gauges allow for pressure measurement in the range of 0.001 to 1 Torr while the ion gauge allows for pressure measurement in the 9x10-4 to 1x10-8 Torr range. The Granville Phillips 280 has two independent thermocouple gauge set points and two independent ionization gauge set points to provide process control over 8 decades of high vacuum pressure. The 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.