General Maintenance 4
Troubleshooting and Maintenance Manual 89
To refill/purge the EI calibration vial
Materials needed
• PFTBA (05971-60571)
Refill
1 Stop any tuning or data acquisition.
2 Turn off the MS electronics.
3 Remove the analyzer window cover. See “To remove the MS covers” on
page 80.
4 Turn the calibration vial collar counterclockwise to loosen it (Figure 7).
Do not remove the collar.
5 Pull the calibration vial out. You may feel some resistance due to the
O-ring around the vial tube section.
6 Syringe or pipette PFTBA into the vial. With the vial vertical, the liquid
should be just below the end of the internal tube, approximately 70 µL of
sample.
7 Push the calibration vial into the valve as far as possible.
8 Withdraw the vial 1 mm. This prevents damage when you tighten the
collar.
Figure 7 Removing the EI calibration vial
Calibration vial
Calibration valveVent valve
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