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Ion Gauges
Nude and glass ion gauges

  • Nude gauges
  • Glass gauges
  • Nude-UHV gauges
  • Overview
    SRS offers three types of gauges for the IGC100 Ion Gauge Controller: glass-tubulated, nude, and nude-UHV Bayard-Alpert ionization gauges. We also supply convection-enhanced Pirani gauges.

    All single, hair-pin shaped filaments used in SRS gauges are spring tensioned to eliminate filament sag. This allows the user to mount the gauge in any orientation. Dual-filament assemblies provide security against filament burnout.

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    SRS Ion Gauges

    To select the appropriate gauge, follow the steps below using the Model Numbers / Selection & Cross-Reference Table (next page).
    1. Select the type of gauge: glass tubulated, nude or nude-UHV (see Specifications tab)
    2. Select filament type: ThO2/Ir or tungsten, single or dual
    3. Note the SRS part number, and click on one of the Quick Links (Prices, Buy Online, Get a Quote) above

    Once you have selected a gauge, choose the appropriate cable using the pin connector diagram below.

    Bayard-Alpert Gauge Pin Connector Configuration

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    Product #
    Available Bayard-Alpert Ionization Gauges
    GR-100F
    2.75" CF, 1" side tube, single filament, ThO2/Ir
    GW-100F
    2.75" CF, 1" side tube, dual filament, tungsten
    NR-F
    Nude, bi-filar helix grid, dual filament, ThO2/Ir
    NR-F-UHV
    Nude, closed cage grid, dual filament, ThO2/Ir
    NW-F-UHV
    Nude, closed cage grid, dual filament, tungsten


    Bayard-Alpert Gauge Model Number/Selection and Cross-Reference Table

    Type Description Pin
    Config/
    SRS
    Cable#
    SRS
    Part#
    Granville
    -Phillips
    ETI Duniway
    Stockroom
    Kurt J
    .Lesker
    Varian
    Glass
    Tubulated
    Connection Filament
    Material
     
    Type Diameter (count)
    Metal
    Tube
    Kovar)
    0.75 in. ThO2/Ir
    (single)
    Fig. 1 GR-075K* 274003 4336K I-075-K G075K K2471305
    tungsten
    dual)
    Fig. 2 GW-075K* 274013 4336TK T-075-K G075TK K7360304
    2.75"
    Conflat®
    Flange
    1 in.
    side
    tube
    ThO2/Ir
    (single)
    Fig. 1 GR-100F 274008 4336F/1 I-CFF-275 G100F K2471303
    tungsten
    (dual)
    Fig. 2 GW-100F 274018 4336TF/1 T-CFF-275 G100TF K7360307
    Nude
    (2.75" CF
    flange)
    Range Anode
    Grid
    Filament
    Material
    (count)
     
    Std. Bi-filar
    Helix
    ThO2/Ir
    (single)
    Fig. 3 NR-F 274028 8140 I-NUDE-BAC G8140 L5150-302
    UHV closed
    end
    cage
    ThO2/Ir
    (dual)
    Fig. 4 NR-F-UHV 274023 8130 I-NUDE-F G8130 971-5007
    UHV closed
    end
    cage
    tungsten
    (dual)
    Fig. 4 NW-F-UHV 274022 8130T T-NUDE-F G8130T 971-5008

    * These products are no longer available from SRS

    Phone:(408)744-9040 • info@thinkSRS.comwww.thinkSRS.com