MAG084
Cold Cathode Gauges - Passive
The INFICON passive Cold Cathode Heads MAG084 is
designed for use with the INFICON passive Vacuum
Gauge Controller VGC094. They are constructed of acompact design resulting in a simple yet rugged gauge
suitable for numerous industrial applications. Gauge
Head MAG084 uses a metal seal allowing pressure
measurements in the UHV range. MAG084 uses a metal
seal and a SHV coaxial male connector. The Gauge
Head assembly can be easily disassembled and cleaned
allowing long term use with minimal down time. A
Gauge Head ignition aid mounted on the anodeimproves the time it takes to set the Cold Cathode
Gauge Head on. Made for R&D applications down to 5
× 10-9 hPa | mbar to 1 × 10-2 hPa | mbar and bakeable
up to 230°C also radiation and external magnetic field
resistant.

ADVANTAGES• Developed for strong magnetic fields• Reliable and proven gauge head design• Bakeable to 230 °C• Good ignition properties, corrosion resistant with ceramic feedthrough• Radiation resistant design to 1 × 107 Gy• Easy to maintain, low cost of ownership
APPLICATIONS• Special Fusion and R&D applications presenting strong external magnetic fields
OPERATING UNITS• Vacuum Gauge Controller VGC094

1

MAG084MAG084
ORDERING INFORMATION
Type

MAG084

DN 40 ISO-KF
DN 40 CF-F

399-849399-850

Accessories

MAG084250°C

MAG08480°C

398-310398-311398-312398-300
398-301398-302

Cable to VGC0941)
3 m (9.0 ft)
8 m (25.0 ft)
15 m (50.0 ft)
1)

2

Other/longer lengths on request

MAG084MAG084
SPECIFICATIONS
Type

MAG084
metal sealed

Measurement system

cold cathode ionization(inverted magnetron principle)

Display range (air N2)
MAG084 with CP300C9 board
Measurement range (air N2)
Accuracy (N2, typical)
Repeatability (typical)
Overpressure
Mounting orientation
Admissible temperature

5 × 10-9 mbar … 1 × 10-2 mbar
1 × 10-8 mbar … 5 × 10-3 mbar
30% of reading
5% of reading≤9 bar for inert gas
anyOperationwith standard cable+5 … +80 °C

with high temperature cable+5 … +230 °C

Bakeout with high temperature cable
Storage
Mechanical integrity
Relative humidity
Use
Radiation resistance
External magnetic fieldIn axial direction-40 … +80 °C+250 °Cmax. 80 % at temperature up to +30 °C, decreasing to 50 % at +40 °C
indoors only, unlimited altitude
107 Gymeasurement deviation≤140mT<10% at 25 °C≤120mT<10% at 230 °C≤340mT<200% at 25 °C≤340mTIn radial direction<200% at 230 °C
measurement deviation≤160mT<10% at 25 °C≤160mT<10% at 230 °C≤195mT<200% at 25 °C≤185mT
Operating voltage (in measuring
chamber)
Operating current (in measuring
chamber)
Electrical connection
Connector
Type

3+230 °C

MAG084<200% at 230 °C≤3.3 kV≤600 μA (CP900C9 board)

SHV
coaxial cableMAG084
Type

MAG084
metal sealed

Materials exposed to vacuum
Vacuum connection

stainless steel (EN 1.4306)

Measuring chamberstainless steel (EN 1.4306)

Feedthrough isolation

ceramic (Al2O3)

Internal seal

Ag

Anode

Mo

Ignition aid

stainless steel (EN 1.4330)

Ionization chamber
MagnetInternal volume

stainless steel (EN 1.4301, EN 1.4016)
NdFeB

DN 40 ISO-KF~23.9 cm3

DN 40 CF-F

~26.1 cm3

DIMENSIONS[mm]

www.inficon.com

reachus@inficon.com

Due to our continuing program of product improvements, specifications are subject to change without notice.
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