Category: Hot Cathode Module incl. Readout

IGM401 Hornet is a miniature hot cathode Bayard-Alpert ionization vacuum gauge module with a built-in controller and display.

This ionization gauge sensor assembly, designed for general vacuum applications, features a compact, all-metal design with a choice of dual yttria-coated iridium or tungsten filaments, providing versatility for use with various gases, and the assembly can be easily replaced in the field.

Auto-Ranging of emission current provides optimal and stabile pressure readings over the entire measurement range from low to high vacuum. Also a lower cost, plug-compatible direct drop-in replacement for the Granville-Phillips® 354 and 355 Micro-Ion®

Pressure range               7.10 e-2 mBar to 1.10 e-9 mbar

Pressure reading:          Torr/mbar/Pa

Setpoint accuracy N2: 1.0 x 10-8 to 5 x 10-2 Torr; ± 15% of reading