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Mass range: 1 to 100 amu
Mass filter type: Quadrupole
Detector type: Faraday cup — std.; electron multiplier — opt.
Resolution: Better than 0.5 amu at 10 % peak height (per AVS std. 2.3). Adjustable to constant peak width throughout the mass range.
Sensitivity (A/Torr): 2 × 10-4 (FC),<200 (EM). User adjustable throughout high voltage range. Measured with N2 at 28 amu with 1 amu full peak width, 10 % height, 70 eV electron energy, 12 eV ion energy, and 1 mA electron emission current.
Min. detectable partial pressure: 5 × 10-11 Torr (FC); 5 × 10-14 Torr (EM). Measured with N2 at 28 amu with 1 amu full peak width, 10 % height, 70 eV electron energy, 12 eV ion energy, and 1 mA electron emission current.
Operating pressure: 10-4 Torr to UHV (FC); 10-6 Torr to UHV (EM)
Max. operating temp.: 70 °C
Bakeout temperature: 300 °C (without ECU)
Ionizer:
Design: Open ion source, cylindrical symmetry, electron impact ionization.
Material: SS304 construction
Electron energy: 25 to 105 V, programmable
Ion energy: 8 or 12 V, programmable
Focus voltage: 0 to 150 V, programmable
Electron emission current: 0 to 3.5 mA, programmable
General:
Probe dimension: 8.75" from flange face to top of ionizer
Probe insertion: 2.0"
Probe mounting flange: 2.75" CF
Minimum tube I.D.: 1.375"
ECU dimensions: 9.1" × 4.1" × 3.1" (WHL) Easily separated from the probe for bakeout.
LED indicators: Power ON/OFF, filament ON/OFF, degas ON/OFF, electron multiplier ON/OFF, RS-232 Busy, Error, Overpressure, Burnt Filament.
Warm-up time: Mass stability ±0.1 amu after 30 minutes
Computer interface: RS-232C, 28,800 baud with high-level command set
Software: Windows based application
Power requirement: 24 VDC at 2.5 amps. Male DB9 connector. Optional 110/120/220/240 VAC adapter.
Weight: 6 lbs.
