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M082 hot cathode super-high vacuum ionization gauge is a typical B-A super-high vacuum ionization gauge with its grid adopting relatively thick tungsten filament, double helix for top supporting for joule exhaust, and using cathode iridium-core electrophoresis yttria for strong anti-oxidation and long life. This gauge can be interchanged with 571 of Varian, G-75-P made by G-P Inc. and RG-75 made by Veeco (U.S.A.).
Major Technical Specifications:
| Type | M082 | | Measuring Range | 1*10-1～4*10-7Pa | | 1*10-3～4*10-9mbar | | 0.75*10-3～0.75*10-9Torr | | X- Ray Limit | about 4*10-8Pa | | about 4*10-6mbar | | about 3*10-6Torr | | Diameter of Connection Tube | Φ19.3，Φ25. | | Joule Exhaust | 7.5 V, 10 A | | Operation Parameters: | | | Voltage over Ground of Grid | 180 V | | Voltage over Ground of Filament | 30 V | | Voltage over Ground of Collecting Electrode | 0 V | | Emission Current | 2 mA | Cautions for Operation:
Strictly stand by the instruction manual for operation.
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