423 I-Mag® & 431 Cold Cathode Vacuum Pressure Sensors
423 I-Mag® & 431 Cold Cathode Vacuum Pressure Sensors
Using an inverted magnetron design, 423 I-Mag® vacuum pressure sensors can operate at pressures as low as 10-10 Torr with the proper controller which is much lower than a traditional Penning cold cathode sensor. This increased pressure range makes the Cold Cathode sensors ideal for for OEM or industrial use.
- Wide pressure measurement range 10-10 to 10-2 Torr
- No adjustment in emission current or filament voltage required
- No need to degas the gauge and no filaments to burn out
- Sensor tubes can be mounted in any position without affecting reading
- Cleaning of sensor is easy with a demountable tube See All Features
Specifications
- Sensor TypeI-Mag® Cold Cathode
- Measurement Range1 x 10-11 to 1 x 10-2 Torr
1 x 10-11 to 1 x 10-2 mbar
1 x 10-9 to 1.0 Pa - ConnectorsTube Side: molded connector with a positive locking bolt
Controller Side: bayonet connector and threaded coaxial connector - Exposed MaterialsStainless steel, 6061 aluminum, Inconel®, glass and alumina ceramic
- Reproducibility5% of reading at constant temperature
- Bake Out Temperatureto 400°C (752°F) with CF flanges and magnet and cable removed
- Operating Temperature0° to 70°C (32° to 158°F)
- Calibration GasAir, Nitrogen
- Installation OrientationAny
- Internal Volume15 cc
- Weight2.0 lbs (0.8 kg) with CF flange
Features
Second Feedthrough for Ion Collection
A unique design feature of the Cold Cathode sensors is a second feedthrough for ion collection. In an ordinary single feedthrough design, any current leakage between the anode and ground would result in pressure measurement errors. Only the ion current from the cathode contributes to a measurement reading in a dual feedthrough design, making it ideal for process monitoring.
No Filament to Burn Out
With no filament to burn out, these cold cathode sensors are not ruined by sudden inrushes of air and are resistant to vibration damage. Additionally, there is no need to adjust the emission current or to degas the gauge, reducing response time to pressure changes.
Accessories
Compatible Cables
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | 100016218Vacuum Gauge Cable, 431 I-Mag Cold Cathode Sensor to 937B or 946 Controller, 25 ft. | 1 Week | ||||
| 100016217Vacuum Gauge Cable, 431 I-Mag Cold Cathode Sensor to 937B or 946 Controller, 10 ft. | 1 Week | ||||
| 100016220Vacuum Gauge Cable, 431 I-Mag Cold Cathode Sensor to 937B or 946 Controller, 100 ft. | 1 Week | ||||
| 100016219Vacuum Gauge Cable, 431 I-Mag Cold Cathode Sensor to 937B or 946 Controller, 50 ft. | 1 Week | ||||
 | 100016297Vacuum Gauge Cable, 423 I-Mag Cold Cathode Sensor to 937B, 946 Controllers, 50 ft. | 1 Week | ||||
| 100016296Vacuum Gauge Cable, 423 I-Mag Cold Cathode Sensor to 937B, 946 Controllers, 25 ft. | 1 Week | ||||
| 100016298Vacuum Gauge Cable, 423 I-Mag Cold Cathode Sensor to 937B, 946 Controllers, 100 ft. | 1 Week | ||||
| 100016295Vacuum Gauge Cable, 423 I-Mag Cold Cathode Sensor to 937B, 946 Controllers, 10 ft. | In Stock |
Resources
Literature
937B Digital Combination Vacuum Gauge Controller(585.5 kB, PDF) 943 Cold Cathode Vacuum Gauge System(305.7 kB, PDF) Vacuum Measurement Product Guide(711.5 kB, PDF)
