The Fredericks Company
Huntingdon Valley, PA 19006
Share:
Piezo Diaphragm Vacuum Sensors have accuracy of -
Direct, gas independent 1E Piezo Diaphragm Vacuum Sensors provide vacuum range of 1-1,000 Torr, while 1F sensors have range of 1-7,600 Torr. Both units feature nickel plated brass or stainless steel bodies with choice of 1/8 in. NPT, NW, or CF connections. They can be used with Televac's MM200 dual display, half-rack Modular Vacuum Gauge, which can include combinations of hot and cold ionization,...
Read More »
High Vacuum Sensor includes dual filament.
Providing vacuum measurement over range of 1 x 10-10to 1 x 10-2 Torr, 3D Miniature Bayard Alpert Sensor performs similarly to nude ion gauges, but is fully enclosed in protective stainless steel body. Performance at UHV is enhanced by ultra-low X-ray limit. Unit provides faster response times to changes in pressure than glass envelope sensors when close-coupled to vacuum chamber.
Read More »
High Vacuum Sensor features all-metal, enclosed design.
Miniature 3D Bayard Alpert Type Ionization Gauge, with supported dual filament, provides vacuum measurement over range of 1 x 10-10 to 1 x 10-2 Torr. Unit performs similarly to nude ion gauges, but is fully enclosed in protective stainless steel body. Performance at UHV is enhanced by ultra-low X-ray limit.
Read More »
Gauge/Controller replaces multiple vacuum gauges.
Incorporating dual sensor technology and controller, self-contained Model CC-10 allows measurement from atmospheric pressure to UHV on single vacuum port. Rough vacuum from atmospheric pressure to 10-2 Torr is measured with crystal sensor, while pressure from 10-2 to 1x 10-9 Torr is measured with double-inverted magnetron cold cathode sensor. Unit includes 0-10 Vdc analog output, RS485 digital...
Read More »
Glass B/A Ionization Gauge has spring supported filament.
Designed for accurate measurement over range of 2x10-10-1x10-3 torr, Bayard Alpert Ionization Gauge has universal design that enables use with other B/A controllers. Spring supported filament reduces any variation in filament to grid spacing to deliver uniform output over variations in temperature, age, and orientation. Thoria- or yttria-coated iridium filament minimizes burnout.
Read More »
Vacuum Sensor offers range of 1 millitorr to 20 torr.
Measuring 2 in. long x Ã-½ in. dia, VacuMini Thermocouple Vacuum Sensor features machined 304 SS body with 1/8 in. NPT connection threads and integral wrench flats for installation. Able to operate in any physical orientation, unit has recessed electrical pins that are protected from moisture and dirt by tethered, gasketed, military-type screw-on weather cap. Applications include cryogenic...
Read More »
Cold-Cathode Sensor withstands frequent pressure bursts.
Model 7FC employs double-inverted magnetron technology for wide dynamic vacuum range of 10-2-10-11 torr. Bakeable to 200Ã-
Read More »
Ribbon and Wire Filaments meet customer requirements.
Fabricated from tungsten, rhenium, or iridium, filaments are available in straight, hairpin, V-shape, spiral, or special configurations with yttria or thoria coatings and plain ends or platinum tabs for welding. Coatings ensure burn-out resistant base metal and low-work function to facilitate operation in variety of operating conditions. Complete, custom-packaged and welded assemblies, inclusive...
Read More »
Vacuum Gauges work alone or with others.
Models 7ER/FR, 2AR, and 4AR are analog or microprocessor-based gauges for stand-alone vacuum measurement and control. They provide local readout or direct interface with chart recorder or data acquisition system. Guages can be integrated into most process systems and measure in range of 10E+03 to 10E-11 Torr. They employ double-inverted magnetrons which withstand sudden in-rushes of gas, are...
Read More »
Piezo Diaphragm Vacuum Sensors have accuracy of -
Direct, gas independent 1E Piezo Diaphragm Vacuum Sensors provide vacuum range of 1-1,000 Torr, while 1F sensors have range of 1-7,600 Torr. Both units feature nickel plated brass or stainless steel bodies with choice of 1/8 in. NPT, NW, or CF connections. They can be used with Televac's MM200 dual display, half-rack Modular Vacuum Gauge, which can include combinations of hot and cold ionization,...
Read More »
High Vacuum Sensor includes dual filament.
Providing vacuum measurement over range of 1 x 10-10to 1 x 10-2 Torr, 3D Miniature Bayard Alpert Sensor performs similarly to nude ion gauges, but is fully enclosed in protective stainless steel body. Performance at UHV is enhanced by ultra-low X-ray limit. Unit provides faster response times to changes in pressure than glass envelope sensors when close-coupled to vacuum chamber.
Read More »
High Vacuum Sensor features all-metal, enclosed design.
Miniature 3D Bayard Alpert Type Ionization Gauge, with supported dual filament, provides vacuum measurement over range of 1 x 10-10 to 1 x 10-2 Torr. Unit performs similarly to nude ion gauges, but is fully enclosed in protective stainless steel body. Performance at UHV is enhanced by ultra-low X-ray limit.
Read More »
Gauge/Controller replaces multiple vacuum gauges.
Incorporating dual sensor technology and controller, self-contained Model CC-10 allows measurement from atmospheric pressure to UHV on single vacuum port. Rough vacuum from atmospheric pressure to 10-2 Torr is measured with crystal sensor, while pressure from 10-2 to 1x 10-9 Torr is measured with double-inverted magnetron cold cathode sensor. Unit includes 0-10 Vdc analog output, RS485 digital...
Read More »
Glass B/A Ionization Gauge has spring supported filament.
Designed for accurate measurement over range of 2x10-10-1x10-3 torr, Bayard Alpert Ionization Gauge has universal design that enables use with other B/A controllers. Spring supported filament reduces any variation in filament to grid spacing to deliver uniform output over variations in temperature, age, and orientation. Thoria- or yttria-coated iridium filament minimizes burnout.
Read More »
Vacuum Sensor offers range of 1 millitorr to 20 torr.
Measuring 2 in. long x Ã-½ in. dia, VacuMini Thermocouple Vacuum Sensor features machined 304 SS body with 1/8 in. NPT connection threads and integral wrench flats for installation. Able to operate in any physical orientation, unit has recessed electrical pins that are protected from moisture and dirt by tethered, gasketed, military-type screw-on weather cap. Applications include cryogenic...
Read More »
Cold-Cathode Sensor withstands frequent pressure bursts.
Model 7FC employs double-inverted magnetron technology for wide dynamic vacuum range of 10-2-10-11 torr. Bakeable to 200Ã-
Read More »
Ribbon and Wire Filaments meet customer requirements.
Fabricated from tungsten, rhenium, or iridium, filaments are available in straight, hairpin, V-shape, spiral, or special configurations with yttria or thoria coatings and plain ends or platinum tabs for welding. Coatings ensure burn-out resistant base metal and low-work function to facilitate operation in variety of operating conditions. Complete, custom-packaged and welded assemblies, inclusive...
Read More »
Vacuum Gauges work alone or with others.
Models 7ER/FR, 2AR, and 4AR are analog or microprocessor-based gauges for stand-alone vacuum measurement and control. They provide local readout or direct interface with chart recorder or data acquisition system. Guages can be integrated into most process systems and measure in range of 10E+03 to 10E-11 Torr. They employ double-inverted magnetrons which withstand sudden in-rushes of gas, are...
Read More »