ProductsPressure MeasurementIon Gauge

VIG Ion Gauge

When operating below the Pirani gauge range (10-3 mbar), an ion gauge can be used to measure pressure. There are a range of gauge heads and filament materials to cover specific pressure ranges and vacuum requirements in this region. The VACGEN ion gauge heads operate using the same principle but vary in design and construction to most accurately monitor pressures within specific ranges. 

VIG Ion Guage Data Sheet

VIG Series Ion Gauges
Flange Size
OD
mm
Flange Size
OD
inch
Bakeout
Temp1
°C
Filament
Materials2
SensitivityGauge
Pressure
Range mbar
X-ray
Limit
in mbar
Dim
A
mm
Dim
B
mm
Dim
C
mm
Dim
D
mm
Dim 
E
mm
Dim 
F
mm
Dim 
G
mm
Dim 
H
mm
Order Code
702.75400 (250)2 x W1910-3 to 10-113 x 10-118328352416347034ZVIG173
702.75400 (250)2 x Th Ir1910-3 to 10-113 x 10-118328352416347034ZVIG18
702.75400 (250)2 x W1710-3 to 10-103 x 10-107228352114347034ZVIG223
702.75400 (250)2 x Th Ir 1710-3 to 10-103 x 10-107228352114347034ZVIG24
Notes
(1) With leads connected, maximum temperature is 250°C
(2) W = tungsten, Th Ir = thoriated iridium
(3) Cannot be used with the IGC5

VACGEN Ion gauge heads - Spares and accessories available

Thoriated iridium filaments are iridium wire coated with a thin thoria coating. These filaments have a lower work function than standard tungsten filaments, and are capable at operating at a lower temperature than tungsten filament gauges with less CO and CO2 produced.

Ion Gauge Heads - Spare Filaments
Gauge HeadOrder Code
ZVIG17ZWW17
ZVIG18ZTIR23
ZVIG22ZWW17
ZVIG24ZTIR23

 

Call us on : +44 (0) 1424 856 333 or  sales@vacgen.com