Vacuum Measurement
14Pages

Introduction Bourdon Gauge Thermocouple Gauge Tubes > 288 290 Introduction291 Del-Seal > CF Mount293 VCR > ٮ Mount293 NPT Mount293 Ionization Gauge Tubes Nude IGT294 Glass Envelope IGT298 > 287 size="-1">

MDC nude ionization gauge tubes aredesigned for high and ultrahigh vacuum measurements between 1x10 Nude Ionization Gauge Tube > MDC 03 Section 4 9/27/03 1:34 PM Page 289 measurements between 1x10 > -3 to 2x10 > -10 Torr.Glass enclosed ionization tubes,commonly referred to as a Bayard-Alpert gauge tubes,consist of several components including a resistive filament,a positively charged grid and a negatively charged collector.The resistive filament is heated to incandescence for the purpose of emitting electrons.The grid,a positively charged wire,coiled in the shape of a spiral,attracts and...

ULTRAHIGH & HIGH VACUUM SERIES Features ■ 0.1 micron to 1000 micron Hg range ■ UHV and HV tubes ■ Interchangeable with other brands ■ Choice of connectors > Thermocouple Gauge Tubes Vacuum Measurement Thermocouple Gauge Parts Simplified TGT-2AM shown General Description > MDC Thermocouple Gauge Tubes offer a fast and reliable means ofmeasuring vacuum from 0.1 to 1000 micron Hg.They can be read continuously and remotely under severe operating conditions.Individual thermocouple gauges operate with specific heater currentratings.Gauge tubes must be matched to the instruments specifi-...

Nude Ionization Gauge Tubes Vacuum Range 10 > -3 to 4x10 > -10 Torr > -3 Vacuum Measurement Maximum Operating Pressure 1x10 Torr Sensitivity 20% 10 Torr X-ray Limit 4x10 > -10 Torr > Single Filament Dual Filament Collector Filament Grid Filament Common Flange 304ss Grid Molybdenum-clad Platinum > Grid Filament Single:Iridium > Internal connection Dual:Tungsten Collector Tungsten Shield Coating Platinum > Collector Filament 1 Base Leads Soft Nickel,0.060" dia. Collector Lead Soft Nickel,0.040" dia. > Grid Filament Common Grid Filament 2 Collector -30 Volts DC Grid +150 Volts DC Filament +30...

Ionization Gauge Tubes -3 -11 Vacuum Measurement Vacuum Range 10 to 2x10 Torr Maximum Operating Pressure 1x10 > -3 Torr > Sensitivity 20% 25 Torr X-ray Limit 2x10 > -11 Torr > Dual Filament Flange 304ss > Collector Filament 1 Grid Tungsten > Grid Filament Dual:Tungsten or Iridium > Filament Common Collector Tungsten Shield Coating Platinum Base Leads Soft Nickel,0.060" dia. > Grid Filament 2 Collector Lead Soft Nickel,0.040" dia. > Collector 0 Volts DC Grid +180 Volts DC > ѕAll pins 0.060 diameter Requires minimum 1.37" I.D.clearance for installation Filament +30 Volts DC Filament Voltage 3...

Side Arm Glass Envelope Ionization Gauge Tubes Collector lead Vacuum Range 10 > -3 to 2x10 > -10 Torr Maximum Operating Pressure 1x10 > -3 Torr > Vacuum Measurement Pumping Speed (Ionic) 0.06 liters/sec - N > 2 (1 mA) X-ray Limit 2x10 > -10 Torr - N > 2 (approx.) > 5.25nominal Envelope Nonex Grid "Non-Sag"Tungsten 0.025" dia. > 3.25or3.38nominal Filament Hairpin thoria-coated iridium Collector Tungsten,0.010" dia. Shield Coating Platinum,internally connected to filament Base Leads Soft Nickel,0.060" dia. Collector Lead Soft Nickel,0.040" dia. > Filament leads Internal Volume 220cc (not...