| Specifications |
| Mass Range: |
1-100, 1-200, 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 to 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 VDC @ 3 Amps; 110/220 VAC, 50/60 Hz adaptor available |
| Stability: |
|
| Mass Stability: |
± 0.1 AMU after 30 minute warm-up |
| Peak Height: |
± 2% after 30 minute warm-up |
| Minimum PC Requirements: |
Pentium microprocessor or compatible, with Windows 98, ME, NT, 2000 or XP |
RS-232 Serial Communications
Interface: |
Isolated; baud rate selection of 1200 to 38,400; 9-pin, female D-connectors |
| RS-485 Addressable Communications Interface: |
Isolated, baud rate selection of 1200 to 38,400; programmable addresses; 2-pin, female D-connectors |
| Optional Analog/Digital I/O Board: |
Includes two analog inputs, two analog outputs, six relay contact closures, and four digital inputs |
| Physical Dimensions |
|
| Weight: |
4.6 lb (2.1 kg) without head
74. lb (3.4 kg) with head
|
| Width: |
4.5 in. (11.4 cm) |
| Length: |
9.0 in. (22.9 cm) |
| Height: |
5.25 in. (13.3 cm) |