MS 120 is a roughing (foreline) pump of choice for LC/MS instruments, designed for high pumping speed, low power consumption, and high stability in the 10-2 mbar pressure range
Due to the outstanding performance of this roughing pump, there is no need for multiple roughing pumps operating in parallel. The packaging and cart like design allow for a quick and easy installation. The pump is equipped with a built-in quiet cover for a silent operation.
| Feature | Unit of measure | Value |
| Nominal speed (at 1500 rpm) (according to PNEUROP standard 6602) | m3/h [cfm] | 156 [92] |
| Effective capacity at 5 mbar abs. (3.75torr) | m3/h [cfm] | ≥120 [≥71] |
| Ultimate total pressure with gas ballast valve open | mbar [torr] | ≤0.2 [≤0.150] |
| Ultimate total pressure with gas ballast valve closed | mbar [torr] | ≤0.07 [≤0.0525] |
| Oil capacity | L [Gal US] | 1.8 [0.47] |
| Motor power (temperatures up to 40°C and altitudes lower than 1000m) | kW [Hp] | 1.8 [2.4] |
| Nominal input voltage and frequency (~1ph) | V | 200 – 240 |
| Hz | 50 – 60 | |
| Internal main fuse (T type) | A | 15 |
| Touch current | mA | 3.0 maximum |
| Operating temperature range | °C [°F] | +12 to +35 |
| [+54 to +95] | ||
| Sound pressure level (at 50Hz without gas ballast valve | dB(A) | 60±1 |
| Water vapour tolerance | mbar [torr] | 15 [11.25] |
| Water vapour pumping capacity | kg/h [lbs/h] | 1 [2.2] |
| Inlet flange | ISO KF DN40 | |
| Outlet flange | ISO KF DN25 | |
| Main Dimensions | ||
| – width | mm [inch] | 516 [20.3] |
| – length | mm [inch] | 750 [29.5] |
| – height | mm [inch] | 539 [21.2] |
| Total weight | kg [lbs] | 100 [220 |
| IP value | 20 | |
| Installation category | II | |
| Pollution degree | 2 | |
| Max altitude | m | 2000 |
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