Vacuum Products Division
30. On the PCB, use the resistance meter to verify an open circuit between any two of the six ion
source header pins (except FIL-1 to FIL-1 and FIL-2 to FIL-2 which should be 0.3 Ohms or less).
Also verify an open circuit between the body of the spectrometer and any of the ion source header
pins (Figure 3-14). If there is continuity (short circuit) at any of the points, remove the header and
inspect for shorting.
31. If successful, leak check the spectrometer to ensure a leak free seal.
32. Place the spectrometer cover over the header and align the holes (Figure 2-13Figure 3-15).
33. Install screws and washers (items 5 & 6), then tighten using a M3 Phillips screw driver (Error!
Reference source not found.). Tighten one screw over the ground strap connector.
Reference source not found.
Reference source not found.
Reference source not found.
34. Re-plug in both the pre-amp and ion source cable.
35. Reinstall the leak detector covers and fasten hardware.
36. Power up the leak detector.
37. Let the unit run for 20-30 minutes, then perform a calibration (via the I/O, front panel display, or
RS232), per the user manual, to validate a successful installation.
Manual 699910005, Hot Ion Source Replacement
Figure 3-14. Ion source header pin schematic
Figure 3-15. Ion source header pin locations
Error!
Error!
Error!
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