Adixen ASM 142, User Manual

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ASM 142 D - ASM Graph D+
Technical characteristics
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Measurement range
(Helium)
Crossover pressure
(at inlet)
mbar.l/s Pa.m 3 /s mbar Pa
Gross leak test mode 1x10 -9 to 1 1x10 -10 to 0.1 10 1000
Normal test mode 1x10 -11 to 3x10 -4 1x10 -12 to 3x10 -5 5x10 -1 50
Sniffing test mode
1x10 -7 to 1x10 -1 1x10 -6 to 1
sniffer probe at atm. pressure
Response time (Inlet port blanked off) < 0.5 s
Helium pumping speed at inlet port:
Gross leak test mode (at minimum inlet pressure) 1.1 l/s
Normal test mode (at minimum inlet pressure) 1.3 l/s
Roughing pump characteristics:
Roughing pump pumping speed (in air) (ASM 142 D) 1 m 3 /h
Roughing pump pumping speed (in air) (ASM Graph D+)
14 m 3 /h
Analyzer cell (Spectro):
Analyzer cell design self protected 180° magnetic deflection mass spectrometer
Analyzer cell filament 2 separate tungsten filaments
Analyzer cell sensitivity
3x10
-4
A/mbar
Emission current range 0.2 to 2 mA
Displays adjustments:
Inlet port pressure display range 10 3 to 10 -3 mbar
10 5 to 10 -1 Pa
Audio alarm: 90 dB frequency modulated and adjustable audio signal
Hard vacuum Audio signal set point Adjustable throughout the entire measuring range
Sniffing Audio set point Adjustable throughout the entire measuring range
Start-up time (average, at 20° C) (ASM 142 D):
Without autocalibration 1 min 22 s ± 10 %
With autocalibration 3 min 5 s ± 10 %
Start-up time (average, at 20° C) (ASM Graph D+):
Without autocalibration 1 min 15 s ± 10 %
With autocalibration 3 min ± 10 %
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