FRG-720/730 Pirani Bayard-Alpert Gauge (CAT#: AM-LE-0444-Y)

FRG-720/730 Pirani Bayard-Alpert Gauge is manufactured by Agilent Technologies, FRG-720 and FRG-730 combine Agilent's Pirani and BA-type sensors into a single compact design, with a pressure range from 5 x 10 -10 mbar measurement capability to atmospheric pressure (3.8 x 10 -10 Torr to atmospheric pressure).

Measuring range (air, O2, CO, N2): 5 x 10-10 to 1000 mbar (3.8 x 10-10 to 760 Torr)
Accuracy: 10-8 to 10-2 mbar/torr — reading accuracy is ± 15%
Repeatability: 10-8 to 10-2 mbar/torr — reading accuracy is ± 5%
Degassing: pressure below 7.2 x 10-6 mbar — electron bombardment, up to 3 minutes
Maximum pressure: 2 bar (absolute pressure)
Power supply voltage: 20 to 28 VDC, 1.4 A at 200 ms after startup, 0.8 A at operation
Communication interface: RS-232C
Internal volume (KF/CF): 24 cm3 (1.46 cubic inches)/34 cm3 (2.1 cubic inches)
Weight (KF/CF): 285 g/550 g
Materials exposed to vacuum: Yt2O3, Ir, Pt, Mo, Cu, W, NiFe, NiCr, stainless steel, glass

• Pirani interlock prevents B-A type sensor from premature burnout and contamination by high-pressure operation
• Type B-A and Pirani composite gauges have a wide measuring range from 5 x 10-10 mbar to atmospheric pressure
• Set control points
• Long-life yttrium oxide-coated iridium filament provides a durable design suitable for a variety of applications
• Optional LCD display makes pressure reading monitoring more convenient
• Profibus communication option simplifies the control network

563 Bayard-Alpert Gauge Tube from Agilent Technologies
571 Bayard-Alpert Gauge Tube from Agilent Technologies
Eyesys ConvecTorr Active Rough-Vacuum Gauge from Agilent