BAG055
Mini hot ion Bayard-Alpert passive gauge head for VGC083
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The hot cathode ionization passive vacuum gauge head BAG055 is a miniature, metal enclosed Bayard-Alpert sensor designed for use with the Vacuum Gauge Controller VGC083A. BAG055 is an electron bombardment (EB) degas metal enclosed hot ionization vacuum gauge capable of pressure measurement down to 1×10-9 mbar.
Thanks to its compact size and a large selection of possible flanges and fittings, BAG055 can be installed in every vacuum system easily and with minimal footprint. BAG055 is offered with a dual yttrium oxide coated iridium filament and can be baked up to 200 °C. The high accuracy (15%) makes BAG055 a cost effective and robust choice for general vacuum industrial or R&D applications.
Advantages
- Long standing, reliable and proven gauge head design
- Drop-in replacement thanks to its compact size, large choice of connection flanges and fittings
- Dual yttrium oxide coated iridium filament cathode assembly
- Electron bombardment (EB) degassing
Typical applications
- Industrial or R&D applications requiring precise vacuum measurement in the high vacuum range
Operating Units
- Vacuum Gauge Controller VGC083A
Specifications
| Measurement principle | Bayard-Alpert, hot cathode ionization Micro ionization gauge |
| Measurement range | 1.3×10-9 mbar to 6.7×10-2 mbar |
| Accuracy (N2) | ±15 % of reading |
| Repeatability (N2) | ±5 % of reading |
| Feedthrough | glass |
| Bake-out temperature | ≤200°C1) |
| Materials exposed to vacuum | Stainless steel, glass, W, Y2O3 |
| Features | Dual Y2O3 coated iridium (Ir) filament |
1) with high temperature cable or without cable
Part number
| BAG055 | |
| 399-760 | BA EB-degas, ¾’’ tube, Yt2O3 coated dual iridium filament (Ir) |
| 399-761 | BA EB-degas, DN 16 ISO-KF, Yt2O3 coated dual iridium filament (Ir) |
| 399-762 | BA EB-degas, DN 25 ISO-KF, Yt2O3 coated dual iridium filament (Ir) |
| 399-763 | BA EB-degas, DN 40 ISO-KF, Yt2O3 coated dual iridium filament (Ir) |
| 399-764 | BA EB-degas, DN 16 CF-R, Yt2O3 coated dual iridium filament (Ir) |
| 399-765 | BA EB-degas, DN 40 CF-R, Yt2O3 coated dual iridium filament (Ir) |
| 399-766 | BA EB-degas, 8 VCR female, Yt2O3 coated dual iridium filament (Ir) |
| Cables to VGC083A | |
| 50°C | |
| 399-810 | 3 m (9.9 ft) |
| 399-811 | 8 m (25 ft) |
| 399-812 | 15 m (50 ft) |
| 200°C | |
| 399-860 | 3 m (9.9 ft) |
| 399-861 | 8 m (25 ft) |
| 399-862 | 15 m (50 ft) |
