Ametek Dycor Dymaxion Mass Spectrometer, User Manual

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Specifications
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2-1
SPECIFICATIONS
Dymaxion
Mass Range 1-100, 1-200, and 1-300 AMU
Operating Pressure
Range
10
-4
Torr to ultrahigh vacuum
Minimum Detectable
Partial Pressure
5 x 10
-12
Torr
5 x 10
-14
Torr for electron multiplier units
Resolution Adjustable to constant peak width (0.5 AMU at 10% height)
Emission Current 0.1 to 10 mA; 50 mA to degas
Electron Energy
30 to 150 volts to operate; 200 volts to degas
Ion Energy 1-10 volts
Source Sensitivity
Faraday Cup
2 x 10
-4
amps per Torr at detector (measured with nitrogen at
mass 28) with peak width = 0.5 at 10% height and 1 x 10
-3
amps
emission current
Power
Requirements
24 volts DC @ 3 amps; 100/240 VAC; 50/60 Hz adapter available.
Stability
Mass stability: ± 0.1 AMU after 30 minutes warm-up.
Peak Height: ± 2% per 5 hours after 30-minute warm-up.
Minimum PC
Requirements
Pentium, 60 MHz microprocessor, 16 MB RAM, with Windows
95/98, NT or XP
Serial Communications
Interface
RS-232
Isolated; baud rate selection of 1200 to 38,400; 9-pin, female
D-connectors
RS-485
Isolated; baud rate selection of 1200 to 38,400; programmable
addresses; 2-pin, female D-connectors
Analog/Digital
I/O Board
Optional
Includes two analog inputs, two analog outputs, six relay contact
closures, four digital inputs