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Sensor Type: Bayard-Alpert Hot Cathode
Measurement Range: 1.0 x 10-9 to 0.001 Torr
Fitting Type: Kovar Metal Inlet Port
Port Size: 0.75 in.
Filament: Single Thoria-coated Iridium
Collector: Tungsten, .010 in. diameter
Accuracy: ±20% (typical)
Bake Out Temperature: 450°C
Installation Orientation: Any, Vertical preferred
Envelope: Nonex 7720 glass, 2.25 in. (57 mm) OD, 5 in. (127 mm) long
Grid: Refractory Metals
Length: 6 in. (152 mm)
Sensitivity: 10/Torr
X-ray Limit: 3 x 10-10 Torr (approximate)
Filament Voltage Potential: +30 VDC
Collector Potential: 0 V
Grid Potential: +180 VDC
Filament Heating Current: 4 - 6 Amps
Filament Heating Voltage: 3 - 5 V
