SRS-放大器,頻譜,訊號產生器 / RGA四極質譜儀,真空計控制器

Bayard-Alpert Ion Gauges離子真空計

B-A熱離子真空計 Bayard-Alpert Ion Gauges
Nude-UHV GaugeGlass Tubulated Gauge, Nude Gauge
To select the appropriate gauge, follow the steps below using the Model Numbers/ Selection & Cross-Reference Table.
(1)Select the type of gauge:glass-tubulated,nude or nude-UHV
(2)Select filament type:ThO2/Ir ortungsten,singleor dual
(3)Note the SRS part number
Once you have selected a gauge,choose the appropriate cable using the pin connector diagram.BA接腳圖
Type Filament Connection Pin cofig. SRS part# Helix ETI Duniway Kurt J. Lesker Varian
Glass-tubulated ThO2/Ir(single) 2.75" CF(1" dia. side tube) Fig. 1 GR-100F 274008 4336F/1 I-CEF-275 G100F K2471303
Glass-tubulated tungsten(dual) 2.75" CF(1" dia. side tube) Fig. 2 GW-100F 274018 4336TF/1 T-CEF-275 G100TF K7360307
Nude ThO2/Ir(single) 2.75" CF(bi-filar helix) Fig. 3 NR-F 274028 8140 I-NUDE-BAC G8140 L5150-302
Nude UHV ThO2/Ir(dual) 2.75" CF(closed-end cage) Fig. 4 NR-F-UHV 274023 8130 I-NUDE-F G8130 971-5007
Nude UHV ThO2/Ir(dual) 2.75" CF(closed-end cage) Fig. 4 NW-F-UHV 274022 8130T T-NUDE-F G8130T 971-5008
Bayard-Alpert Ion Gauges離子真空計
  Glass Tubulated Nude Nude-UHV
Physical Data
  B-A熱離子真空計Glass Tubulated B-A熱離子真空計Nude B-A熱離子真空計Nude-UHV
Connection Side tube or 2.75" Conflat® flange 2.75" CF flange 2.75" CF flange
Side tube diameter 0.75"(19.1mm) or 1"(25.4mm) N.A N.A
Side tube material Pyrex or Kovar1 N.A N.A
Envelope Nonex 7720 Glass,2.25" dia(57mm). × 5.25"(133mm) long Nude Nude
Mounting position Any, vertical preferred2 Any Any
Collector Tungsten, 0.05" diameter Tungsten, 0.05" diameter Tungsten, 0.05" diameter
Filament Single6 ThO2/Ir or dual tungsten Single6 ThO2/Ir Replaceable. Dual ThO2/Ir or dual tungsten, Replaceable
Grid Tungsten, bi-filar helix configuration Tungsten, bi-filar helix configuration Tantalum and Pt/Moly support, closed end ("squirrel cage")
Overall length, max. 6.0"(152mm) 4.13"(105mm) 4.13"(105mm)
Insertion length, max. N.A. 3.30"(84mm) 3.00"(76mm)
Operating Data
Operating pressure 2×10-10 to 10-3 Torr 4×10-10 to 10-3 Torr 2×10-11 to 10-3Torr
Sensitivity for N2 (nominal) 10/Torr 10/Torr 25/Torr
X-ray limit 2×10-10 Torr 4×10-10 Torr 2×10-11Torr
Electron Bombardment degas, Power @500V 70 Watts(nominal)
100 Watts(max.)
70 Watts(nominal)100 Watts(max.) 40 Watts (max.)
Resistance Heated degas 6.3 to 7.5 Volts @ 10 Amps 6.3 to 7.5 Volts @ 10 Amps N.A.
Bakeout Temperature 250 °C 450 °C 450 °C
Electrical Operating Parameters3
Anode grid bias Voltage 180 VDC 180 VDC 180 VDC
Collector bias voltage 0 VDC 0 VDC 0 VDC
Emission Curren(nom) 10 mA 10 mA 4 mA
Filament bias voltage 30 VDC 30 VDC 30 VDC
Filament supply current 4 to 6 Amps 4 to 6 Amps 4 to 6 Amps
Filament supply voltage 3 to 5 VDC 3 to 5 VDC 3 to 5 VDC
SRS Cable #4 O100C1-one filament
O100C2-dual filament
O100C3 O100C3
Default Setup File5 GLASS NUDE NUDE-UHV

1.Glass-to-metal transition.
2.Vertical orientation provides strain relief for electrode structures increasing long term stability Performance.
3.Direct current (DC) bias and supply voltages are recommended for all electrical connections.
4.O100C3 cable is compatible with all Bayard Alpert Gauges in this table.
5.Default Setup files are factory pre-loaded in the IGC100 controller and facilitate controller setup.
6.Single filaments are hair pin shaped and spring loaded to eliminate sagging.