The 572 Bayard-Alpert Gauge hot-cathode ionization gauge tube is a high-performance, high vacuum gauge with a wide range of linear response from 2 x 10^-10 to 1 x 10-3 Torr (2.7 x 10^-10 to 1 x 10^-3 mbar). It is designed to withstand long periods of outgassing, and to facilitate simple external switching of filaments without disturbing the vacuum system. The 572 is compatible with virtually all modern hot filament ionization gauge controllers.

Dual tungsten filament keeps gauge operational even when one filament burns out
Robust instrument that can withstand long periods of degassing and accidental exposure to atmosphere at operating temperature and still recover its original characteritiscs
High X-ray limit allows the gauge to give more accurate readings at lower pressure

Part Number Variant

K7360301 572 ionization gauge tube, dual-tungsten-filament, 1 in glass tube
K7360302 572 ionization gauge tube, dual-tungsten-filament, 1 in Kovar tube
K7360303 572 ionization gauge tube, dual-tungsten-filament, 0.75 in glass tube
K7360304 572 ionization gauge tube, dual-tungsten-filament, 0.75 in Kovar tube
K7360305 572 ionization gauge tube, dual-tungsten-filament, NW25 KF
K7360306 572 ionization gauge tube, dual-tungsten-filament, NW40 KF
K7360307 572 ionization gauge tube, dual-tungsten-filament, 2.75 in ConFlat flange

New, factory warranted pumps available.

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Manual

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572 Bayard-Alpert Ion Gauge Tube

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572 Bayard-Alpert Ion Gauge Tube