CY-ZJ-12 Ultra High Vacuum Hot Cathode Ionization Gauge (B-A Gauge)

This type of gauge tube is a typical B-A structure, using a precious metal oxide cathode that is resistant to oxidation and can withstand instantaneous atmospheric impact. It is characterized by stable performance, long life, and is suitable for high and ultra-high vacuum measurements.

Main Technical Parameters:

1.Measurement Range: 1×10 −1 to 5×10−8Pa

2.X-ray Limit: ≤ 3×10−8Pa

3.Gauge Sensitivity: 0.075±15 Pa⁻¹

4.Operating Parameters:

Filament to Ground Potential: 50 V

Grid to Ground Potential: 200 V

Grid Current (Emission Current): 0.4/4 mA

Collector to Ground Potential: 0 V

5.Electron Bombardment (E.B) Degassing:

Grid Voltage: 800 V

Collector Voltage: 800 V

Degassing Current: 70 mA

6.Vacuum Connection Types and Baking Temperature:

Φ19.3±0.3 Glass Tube: 450°C

Φ25.4±0.4 Glass Tube: 450°C

CF35 Ultra-high Flange: 450°C