Hot Ionization Gauges

BAG05x

Bayard-Alpert passive gauge heads for VGC083

Prices & Availability

Drop-in Options

Revolutionize your vacuum gauge experience with us!

The hot cathode ionization passive vacuum gauge heads BAG05x are nude (BAG050, BAG051) or glass tube (BAG052, BAG053) Bayard-Alpert sensors designed for use with the Vacuum Gauge Controller VGC083A/B.

BAG050 is an electron bombardment (EB) degas nude ionization vacuum gauge capable of UHV pressure measurement as low as 2×10^-11 mbar.
BAG051 is a resistive (I²R) degas nude ionization vacuum gauge capable of pressure measurement as low as 5×10^-10 mbar.
BAG052 and BAG053 are resistive degas (I²R) glass enclosed ionization vacuum gauges capable of pressure measurement as low as 5×10^-10 mbar.

Ytrium oxide coated iridium filaments are offered for general vacuum applications where air and inert gases, such as N₂ and argon, are present. Tungsten filaments are offered for specific applications where yttrium oxide coated iridium filaments are not compatible. The BAG05x gauge heads are designed for low outgassing vacuum systems and can be baked up to extreme high temperature (450 °C). BAG05x gauges are largely compatible and may be operated with other user-selected compatible vacuum gauge controllers.

Advantages

Long standing, reliable and proven gauge head design
Drop-in replacement for most nude hot ion gauge heads
Wide range of emission currents (100 μA to 10 mA)
Available with single/dual yttrium oxide coated iridium and dual tungsten filament cathode assemblies
Degas: all models can be degassed using in electron bombardment (EB), BAG051, BAG052 and BAG053 can also be degassed using resistive degas (I²R)

Typical applications

Industrial or R&D applications requiring precise vacuum measurement in the high/ultra-high vacuum range and high temperature bake-out

Operating Units

Vacuum Gauge Controller VGC083A/B

Specifications

BAG050

BAG051

BAG052

BAG053

Measurement principle	Bayard-Alpert, hot cathode ionization
Gauge type	Electron bombardment (EB) degas nude gauge
Measurement range	2.7×10^-11 ... 1.3×10^-3 mbar
Accuracy (N₂)	±20 % of reading
Repeatability (N₂)	±5 % of reading
Feedthrough	Al₂O₃ceramic
Bake-out temperature	≤450°C
Materials exposed to vacuum	Stainless steel, Al₂O₃, W, Y₂O₃
Features	Available with following filament options: - Dual, Y₂O₃ coated iridium (Ir) - Dual, tungsten (W)

Measurement principle	Bayard-Alpert, hot cathode ionization
Gauge type	Resistive (I²R) degas nude gauge
Measurement range	5.3×10^-10 ...1.3×10^-3 mbar
Accuracy (N₂)	±20 % of reading
Repeatability (N₂)	±5 % of reading
Feedthrough	Al₂O₃ceramic
Bake-out temperature	≤450°C
Materials exposed to vacuum	Stainless steel, Al₂O₃, W, Y₂O₃
Features	Available with following filament options: - Single, Y₂O₃ coated iridium (Ir) - Dual, Y₂O₃ coated iridium (Ir) - Dual, tungsten (W)

Measurement principle	Bayard-Alpert, hot cathode ionization
Gauge type	Resistive (I²R) degas glass enclosed gauge
Measurement range	5.3×10^-10 ... 1.3×10^-3 mbar
Accuracy (N₂)	±20 % of reading
Repeatability (N₂)	±5 % of reading
Feedthrough	glass
Bake-out temperature	≤450°C
Materials exposed to vacuum	Glass, Al₂O₃, W, Y₂O₃
Features	Single Y₂O₃ coated iridium (Ir) filament

Measurement principle	Bayard-Alpert, hot cathode ionization
Gauge type	Resistive (I²R) degas glass enclosed gauge
Measurement range	5.3×10^-10 ... 1.3×10^-3 mbar
Accuracy (N₂)	±15 % of reading
Repeatability (N₂)	±5 % of reading
Feedthrough	glass
Bake-out temperature	≤450°C
Materials exposed to vacuum	Glass, Al₂O₃, W, Y₂O₃
Features	Available with following filament options: - Dual, Y₂O₃ coated iridium (Ir) - Dual, tungsten (W)

Order Information

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Datasheets

BAG05x Bayard-Alpert Gauges

pdf • 293,3 KB • English • Datasheets

Manual

Trigon™ BxG55x Communication Protocol RS232/RS485

pdf • 1,0 MB • English

Brochure

Brochure Passive Vacuum Gauge Controller & Sensor Heads

pdf • 2,1 MB • English • Brochures

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Typical applications

Operating Units

Specifications

Order Information

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