RKI Instruments EAGLE 2 Manual - Manual (Page 173)

EAGLE 2 Operator’s Manual Maintenance • 163
16. Use this cotton swab to polish the PID lamp window. Use a circular
motion, applying light pressure to clean the lamp window. Do not touch
the lamp window with your fingers.
Figure 29: Polishing the Electrode Lamp Window
17. Continue polishing until you can hear a squeaking sound made by the
cotton swab moving over the window surface. This usually occurs after
about 15 seconds of polishing.
18. Remove the residual powder from the lamp window with a clean cotton
swab. Take care not to touch the tip of the cotton swab that is used to
clean the lamp as this may contaminate it with finger oil.
19. Ensure the lamp is completely dry and any visible signs of contamination
are removed before reinstalling.