SIS Catalog Online

Pages in this section: F2 F3 F4 (all shown below)

•

Bayard-Alpert Design

•

Dual Tungsten or Burn-out Resistant Iridium

•

Non-sag Bifilar Grid

•

Linear Response

•

3/4" or 1" Pyrex

™

or Kovar Tubulation

•

Response from 10

-10

to 10

-3

torr

S

eries G Ionization Gauge Tubes are hot cathode gauges of the Bayard-Albert
Type intended for pressure (density) measurement from 10

-3

Torr down to 3 x 10-

10 Torr. These tubes have been designed to provide long trouble-free operation

and are carefully cleaned, assembled and packaged so that they will not contaminate your
clean system. Both the burn-out-resistant iridium type and the dual tungsten types are
interchangeable.

Burn-Out Resistant Iridium Filament (G Series)

The burn-out-resistant filament is made of iridium with a layer of thoria cataphoretical-

ly coated on it. This provides long filament life and stable, easily controlled electron
emission at relatively low filament operating temperatures. Because iridium does not
oxidize rapidly, even at high temperature, occasional accidental exposure to atmospheric
pressure while hot will not appreciably damage or shorten the active life of the filament.
The burn-out resistant model is designed for convenient and reliable connection to
standard connectors.

Ionization Gauge Tubes

F2

Scientific Instrument Services, Inc.

™

Phone: 908-788-5550

www.sisweb.com/catalog/08/F2

Physical Data

Filament Voltage

3 to 5 Volts AC

Filament Current

4 to 6 Amps AC

Grid Voltage

+150 Volts

Grid Outgas

6.3 to 7.5 Volts@ approx. 10 Amps.

Collector Voltage

-20 to -50 Volts

Sensitivity

Tungsten Filament: 100µa/µ
@8 ma grid current (Nitrogen)
Iridium Coated Filament: 100µa/µ
@10 ma grid current (Nitrogen)

Linearity

10

-4

to 10

-10

Torr @ 10 Ma

10

-3

to 10

-4

Torr @ 1 Ma grid current

Electrical Data

Bulb Material

Nonex 7720 Glass

Tube Diameter

2 1/4" max. O.D.

Tube Length

6 3/4" Maximum

Tubulation

See Chart

Mounting Position

For best results, it is recommended
that tube be mounted vertically

Recommended

Either Winchester Electronics

Socket

Connector P/N A7SH or Continental
Connector P/N 7-16SH

Dual Tungsten
Filament (T Series)

The dual tungsten filament model is

also designed for use with the same gauge
cables. By connecting control unit filament
leads to contacts “C” or “D” of the
connector, either filament may be used by
merely reversing the connector 180° on
the tube base. Because the two filaments
are independently connected, one may be
used to operate the gauge and the other
operated as a desorption filament.

The bifilar design supports the grid at

its midpoint so that the unsupported length
of grid wire is only half that in
conventionally wound grids. Thus the
tendency to sag during outgassing is
greatly reduced.

ION GAUGE

Bayard-Alpert Ion Gauge
can measure vacuum from
10-10 to 10-3 torr.

F3

Ionization Gauge Tubes

Scientific Instrument Services, Inc.

™

FAX: 908-806-6631

www.sisweb.com/catalog/08/F3

Connector Plug Data

T

he G Series is designed for convenient and reliable connection to a
standard connector. The burn-out-resistant version is mechanically and
electrically interchangeable with similar models using Continental

Connector Corp. type 7-16S connector. (Refer to above diagram).

The two tungsten filament version is designed for use with the same connector.

Connect control unit grid leads to contacts “A” and “H” and filament leads to
contacts “C” and “D” of the connector. Filaments can then be switched by merely
reversing the connector 180°. This eliminates the possibility of damage to tube by
applying grid outgassing currents to filament (s). (Refer to above diagram).

A

C

E

H

D

F

B

A

C

E

H

D

F

B

Connector

Filament

Connection for

Burn-Out Resistant

Filament Gauge Tube

Connection for

Dual-Tungsten Filament

Gauge Tube

Grid

Filament

Ion Gauge Cross Reference

Grid
Filament

Filament

Grid

Iridium Filament Pin Pattern
-same for all manufacturers

Tungsten Filament Pin Pattern

- fits the same connectors, but requires a wire
"jumper" from D to E

Grid

Filament 2

Grid

Filament 1

Gauge Tube Pin Data

Tube/Type

S.I.S.

CVC

Extrel

Thermo*

Granville

Huntington

HighVac

Agilent Varian

Veeco

CAT#

#GIC

#00105

Phillips

274

G79-

0960

563,71,72

3/4"/Pyrex

G75P Part #G75P--Click to order
Current Price: $119.50
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

—

G075N-PT

01500

002

IP-100

IPB

0376

304

RG75P

3/4"/Kovar

G75K Part #G75K--Click to order
Current Price: $128.50
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Quantity in Stock=4

—-

01500

003

IK-100

IKB

—-

305

RG75K

1"/Pyrex

G100P Part #G100P--Click to order
Current Price: $125.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

—-

005

IP-150

—-

301

—-

1"Kovar

G100K Part #G100K--Click to order
Current Price: $154.88
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

—-

006

IK-150

—-

302

—-

3/4"/Pyrex

T85P Part #T85P--Click to order
Current Price: $115.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Quantity in Stock=1

016

—-

012

TP-100

ITP

—-

TG75P

3/4"/Kovar

T85K Part #T85K--Click to order
Current Price: $127.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

016-3

—-

013

TK-100

ITK

—-

TG75K

1"/Pyrex

T110P Part #T110P--Click to order
Current Price: $115.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

017

—-

015

TP-150

—-

1"/Kovar

T110K Part #T110K--Click to order
Current Price: $108.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

017-3

—-

016TAK-150

—-

3/4" Kovar

G75KHS Part #G75KHS--Click to order
Current Price: $210.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

—-

01510

—-

NW25 Flange

G100KF25 Part #G100KF25--Click to order
Current Price: $195.00
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

—-

0799

—-

Product No.

Tubulation

Filament

Pkg.of 4

G75P Part #G75P--Click to order
Current Price: $119.50
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

3/4" Pyrex

™

Iridium

G75K Part #G75K--Click to order
Current Price: $128.50
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Quantity in Stock=4

3/4" Kovar

Iridium

T85P Part #T85P--Click to order
Current Price: $115.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Quantity in Stock=1

3/4" Pyrex

Tungsten

T85K Part #T85K--Click to order
Current Price: $127.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

3/4" Kovar

Tungsten

G100P Part #G100P--Click to order
Current Price: $125.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

1" Pyrex

Iridium

G100K Part #G100K--Click to order
Current Price: $154.88
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

1" Kovar

Iridium

T110P Part #T110P--Click to order
Current Price: $115.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

1" Pyrex

Tungsten

T110K Part #T110K--Click to order
Current Price: $108.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

1" Kovar

Tungsten

G75KHS Part #G75KHS--Click to order
Current Price: $210.00
(4 or more: 3% off)
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

3/4" Kovar

Iridium/ Thoria

G100KF25 Part #G100KF25--Click to order
Current Price: $195.00
Unit of Measure: EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

NW25 Flange

Iridium

—-

* When “Thermo” is indicated, it is intended to imply “Thermo Fisher Scientific Corp.”

PTFE and Glass Filled PTFE Ferrules
for Ion Gauge Tubes

These 3/4" ferrules are used to install Ion Gauge Tubes. They are available in two

compositions, PTFE and Glass filled PTFE. PTFE ferrules are for standard use under most
operating conditions. Glass filled PTFE exhibits less flow at elevated temperatures and
therefore have a longer life and greater leak resistance. Usable to 250°C.

Ion Gauge Adapter Flange

3/4" O-Ring connector to 2 3/4" Conflat flange. Use this to adapt ion gauge tubes to a

2 3/4" Conflat flange. Other sizes and configurations are available on special request.

Part No.

Description

FC75 Part #FC75--Click to order
Current Price: $175.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.

Ion gauge adapter flange

Part No.

Description

T-12131 Part #T12131--Click to order
Current Price: $4.65
(10 or more: 5% off; 50 or more: 10% off)
Unit of Measure: EA
Est. Ship Weight=0.25 lbs
Quantity in Stock=42

3/4" PTFE Ferrule
Pkg. of 10

GFT-1213 Part #GFT1213--Click to request quote
DISCONTINUED
Unit of Measure: EA
Est. Ship Weight=0.25 lbs

3/4" Glass Filled PTFE Ferrule
Pkg. of 10

Mini Ion Gauge Tube

The Mini Ion Gauge Tubes are available from S.I.S.

™

. The controller electronics and

cable are available if you did not buy this device with your instrument and now wish to
upgrade.

Ion Gauge

Tube

Part No.

Description

342003 Part #342003--Click to request quote
Obsolete part number. New number is SIS342003. Please call for ordering (1-908-788-5550).
Unit of Measure: EA
Est. Ship Weight=1 lbs

Agilent 5972/5973/5975, LTQ, LCQ, DSQ
Ion Gauge Tube

342022 Part #342022--Click to request quote
DISCONTINUED
Unit of Measure: EA
Est. Ship Weight=3 lbs

Agilent 5972/5973/5975, LTQ, LCQ, DSQ
Ion Gauge Controller

342023 Part #342023--Click to request quote
DISCONTINUED
Unit of Measure: EA
Est. Ship Weight=1 lbs

Agilent 5972/5973/5975, LTQ, LCQ, DSQ
Ion Gauge Cable

Ionization Gauge Tubes

F4

Scientific Instrument Services, Inc.

™

Phone: 908-788-5550

www.sisweb.com/catalog/08/F4

Related information may be found on the following pages of our web site:

Page	Parts
Ion Gauge Tubes, Bayard-Alpert Type	G100KF25, G100K, G100P, G75KHS, G75K, G75P, T110K, T110P, T85K, T85P
Ion Gauge Tube for Finnigan Mass Specs	G75K
Hewlett Packard 5971 Vacuum Measuring System	G75K
,Granville-Phillips Vacuum Gauge Controller, pg F8	G75K, G75P
Bayard-Alpert ion gauge controllers pg F5	G75K, G75P
Ion Gauge Tubes of HP Mass Specs	G100KF25, G75K, G75P
Hewlett Packard 5971 Vacuum Measuring System	G75K
Finnigan TSQ 70 Ion Gauge Tubes, High Sensitivity	G75KHS, G75K
Vacuum Measurement System for Incos 50B MS	G75K
Parts for Precision Scientific Vacuum Pumps (by Precision Plus)	342003
Triode Ion Gauge Tube for HP 5972 MSD - NEW	342003, 342022, 342023
Ion Gauge Tubes of HP Mass Specs	342003, GFT1213, T12131
PTFE & Glass Filled PTFE Ferrules for ion gauge tubes pg F4	GFT1213, T12131
Ion gauge adaptor flange, pg F4	FC75
PTFE, Glass Filled PTFE Ferrule for Ion Gauge Tubes, Pg B13	GFT1213, T12131

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