IE414 and IE514 are passive hot cathode ion gauge sensors used with the IM540 controller. IE414 uses the Bayard-Alpert principle and IE514 the extractor principle, for ultra-high vacuum research.
| Flange Connection | DN 40 CF |
| Measuring Range (N₂) | IE414 2×10⁻¹¹…1×10⁻² mbar / IE514 2×10⁻¹²…1×10⁻⁴ mbar |
| X-Ray Limit | IE414 <1×10⁻¹¹ mbar, IE514 <1×10⁻¹² mbar |
| Sensitivity (N₂, typical) | IE414 17 mbar⁻¹, IE514 6.25 mbar⁻¹ |
| Measuring Principle | Hot cathode ionization (IE414 Bayard-Alpert, IE514 Extractor) |
| Max. Bakeout | 400 °C (without plug), flange max. 250 °C (with high-temperature cable set) |
| Operating Temperature | +20…+80 °C |
| Storage Temperature | +20…+50 °C |
| Dimensions | IE414 height 90 mm, IE514 98 mm (ø69.4 CF flange) |