Granville-Phillips® 370 Stabil-Ion® Bayard-Alpert Vacuum Gauges are the most accurate Bayard-Alpert style hot-cathode ionization vacuum pressure gauges featuring an all metal gauge tube that eliminates glass breakage, glass decomposition, or helium permeation. A complete electrostatic shield and grounded metal gauge tube housing provide a stable electrical environment and shield against external electrical influences.
|Compare||Model||Drawings, CAD & Specs||Availability||Price|
|370120 Vacuum Gauge, Hot Cathode, Bayard-Alpert, 2 x 10-10 Torr, 2.75 in. CF||$819||
|370121 Vacuum Gauge, Hot Cathode, Bayard-Alpert, 2 x 10-11 Torr, 2.75 in. CF||$819||
The stability, accuracy, and reliability of the Stabil-Ion® Gauge are the results of many years of testing and design. Stabil-Ion Gauges are the only high vacuum process control gauges that are designed to maintain calibration over time. Due to the design and technology of older style ionization gauges, the physical relationship between the grid and the filament is always changing. As a result, pressure readings are often inaccurate by 30% to 40% - sometimes even more. A patented precise design and advanced manufacturing techniques ensure that the StabilIon Gauge’s components do not shift, so you can count on accurate pressure measurements for the life of the gauge.
The Granville-Phillips® 370 Stabil-Ion® Vacuum Gauge Controller is a rack-mounted controller providing unmatched ionization gauge performance for the all-metal 370 Stabil-Ion® Gauge, delivering the long-term performance of a spinning rotor gauge at a fraction of the cost using calibration on a chip.
Long-term, accurate measurement is assured by the unique design and careful manufacturing of the Stabil-Ion Gauges. Here are the more important problems with older BA gauge designs that we removed in order to achieve accuracy over time and gauge-to-gauge. Sophisticated computer simulations of electron and ion trajectories helped greatly in identifying the causes of nonstable behavior