| Mass range XT100, XT100M |
1 to 100 amu |
| XT200 , XT200M |
1 to 200 amu |
| XT300, XT300M |
1 to 300 amu |
| Mass filter type |
Quadrupole |
| Resolution |
Greater than 1 amu @ 10% peak height, adjustable |
| Operating pressure |
Atmosphere to UHV ( ion gauge operation below 10-2 torr, RGA operation below 10-3
torr and Multiplier operation below 10-6 torr) |
| Partial Pressure Detector type |
Faraday cup |
| Partial Pressure Sensitivity (A/Torr) |
5x10-4 into Faraday cup. Measured with N2 @ 28 amu with 1
amu full peak width, 10% height, 70 eV electron energy, 6 eV
ion energy and 2 mA electron emission current. |
| Minimum detectable partial pressure |
5x10-14 torr with Multiplier. Measured with N2 @ 28 amu with 1 amu full peak
width, 10% height, 70 eV electron energy, 6 eV ion energy, and 2 mA electron emission current. 10-11 torr
with Faraday cup. |
| Total Pressure Detector type >10-3 Torr |
Pirani type, (measures heat loss from noble metal wire) |
| Total Pressure Detector type <10-3 Torr |
Bayard/Alpert type ion gauge, x-ray limit 10-9 |
| CCU Max. operating temperature |
70°C |
| CCU temperature sensor |
solid state sensor in CCU, temperature continuously monitored and displayed |
| Bakeout temperature |
350°C (without CCU) |
| Probe operating temperature |
100°C, Platinum RTD on probe, temperature continuously monitored and displayed |
| Ionizer Design |
Open ion source , electron impact ionization. |
| Probe Materials |
SS304, Kovar, Tungsten, Alumina, Iridium, Copper, Nickel |
| Filament |
Dual Thoriated Iridium with firmware protection. |
| Degas |
Built-in 1 to 30 W ramp-up. |
| Electron energy |
10 to 150 V, continuously programmable |
| Ion energy |
3 to 10 V, continuously programmable |
| Electron emission current |
0.1 to 5 mA, continuously programmable |
| Probe mounting |
Minimum tube I.D. 1.375" flange 2.75" CF |
| CCU dimensions |
3.3" x 4.8"x 7.5". Easily separated from the probe for bakeout |
| Mass stability |
±0.1 amu after 30 minutes warmup. |
| Computer interface |
RS-232C, 9600 - 115,200 Baud |
| Software |
Windows® 2000, XP based application. |
| Power requirement |
24 VDC @ 2.1 Amps. Standard 120 VAC adapter supplied. |
| Weight |
5 lbs. |
