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GPH-001A Cold Cathode Ionization Sensor
Description
This rugged high vacuum gauge tube is ideal for heavy industrial applications such as vacuum furnaces and evaporators. There is no hot filament to accidentally burnout. If the tube is turned on at atmosphere it may require simple disassembly and cleaning. The replaceable anode attaches to a replaceable vacuum feedthru. The arc gap is adjustable.
The Penning vacuum tube (named after its inventor, F. M. Penning) measures pressure as a function of the ion current flowing in a cold cathode pressure sensing tube which operates at high voltage and in a magnetic field. These tubes work with Myers Vacuum and CVC type: GPH-320, GPH-324 and GPT-450 vacuum gauges.
Features
Pressure range from 2.5 X 10-2 to 2 x 10-8 Torr
Can be turned on at atmosphere with minimal damage
Easy to disassemble and clean. No special tools are required.
Removable anode for cleaning and replacement.
Stainless steel envelope.
Quick, stable starting characteristics.
Permanent ring magnet.
Viton seal gaskets.
Large mouth opening for quick pump out.
Pressure is factorable to other gases.
Standard BNC connection
Bakeable to 150ºC
Tube can be mounted in any orientation, best results come from minimizing contamination.
Gauge Specifications GPH 001A
Anode: Stainless Steel Envelope: Stainless steel Magnet strength:1450 gauss Maximum bake out temperature: 150º C
Ordering Information
GPH-001A with 1″ tubulation (standard): Part Number 282396 Replacement Anode Assembly with feedthru: Part Number 282395 Anode Seal Viton Gasket: Part Number 264091-5 Magnet: Part Number 60267 10′ BNC Cable Assembly, Discharge Tube: Part Number 282394-1 BNC High Voltage Connector: Part Number 5508273
Vacuum Port Adaptor
KF-25 to 1″ tube connector (female): Part Number 500234-25 KF-40 to 1″ tube connector (female): Part Number 500234-40 KF-50 to 1″ tube connector (female): Part Number 500234-50
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Contact Myers Vacuum
Myers Vacuum Repair Services, Inc
1155 Myers Lane
Kittanning PA 16201
Phone 724-545-8331
Toll Free 888-780-8331
Fax 724-545-8332 dmyers@myers-vacuum.com