Agilent Technologies HP E5574A User Manual page 239

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Appendix E. Cleaning Procedure
Cleaning Procedures
3 Take a new, dry soft-tissue and remove the alcohol, dissolved
sediment and dust, by rubbing gently over the surface using a
small circular movement.
4 Blow away any remaining lint with compressed air.
Cleaning Recessed Lens Interfaces
Preferred Procedure
1 Blow away any dust or dirt with compressed air. If this is not
sufficient, then
2 Clean the interface by rubbing a new, dry cotton-swab over the
surface using a small circular movement.
3 Blow away any remaining lint with compressed air.
Procedure for Stubborn Dirt
Use this procedure particularly when there is greasy dirt on the
interface, and using the procedure for light dirt is not sufficient.
Using isopropyl alcohol should be your last choice for recessed lens
interfaces because of the difficulty of cleaning out any dirt that is
washed to the edge of the interface:
1 Moisten a new cotton-swab with isopropyl alcohol.
2 Clean the interface by rubbing the cotton-swab over the surface
using a small circular movement.
3 Take a new, dry soft-tissue and remove the alcohol, dissolved
sediment and dust, by rubbing gently over the surface using a
small circular movement.
4 Blow away any remaining lint with compressed air.
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