The stability, accuracy, and reliability of the Granville-Phillips® 347 Stabil-Ion® Vacuum Gauge are the results of many years of testing and design. Stabil-Ion gauges are the only high vacuum process control gauge that do not change calibration over time. These compact, convenient and reliable vacuum transducers mount the controller electronics directly on the gauge.
|Compare||Model||Drawings, CAD & Specs||Availability||Price|
|347054-YE-T Vacuum Transducer, Stabil-Ion Ionization, 2x10-10 Torr, 2.75 in. CF||$1,770||
|347054-YU-T Vacuum Transducer, Stabil-Ion Ionization, 1x10-10 Torr, 2.75 in. CF||$1,770||
Its patented design is based on a number of enhancements including tensioned filaments, a precision-wound stress-relieved grid, and electrostatic shields. These enhancements result in an ionization gauge that is superior to all other designs in terms of accuracy, repeatability, and gauge-to-gauge reproducibility. The high measurement performance and rugged design of the Stabil-Ion gauge make it the gauge of choice for critical vacuum processes.
The stainless steel enclosure prevents grid and filament damage during mounting and eliminates the risk of glass breakage.
The Filaments are tensioned so they stay precisely positioned to maintain calibration.
Electrostatic shields completely surround the electrode structure to provide a stable, accuracy enhancing electrical environment.
The Precision-wound, stress-relieved grid retains its original shape even after high-temperature degassing, thus reducing measurement errors.
The Stabil-Ion gauge is designed, constructed, and processed to minimize outgassing. The gauge is never touched by bare hands during manufacturing.
Available as extended range or ultra-high vacuum with burn-out resistant yttria-coated iridium filaments. Unscheduled down time is avoided by using the second filament as a back-up until the gauge can be replaced during the next routine maintenance cycle.
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