How to clean metal filters or attenuator gratings, Additional cleaning information – Atec Agilent-81618A User Manual
Page 104

Cleaning Information
Additional Cleaning Information
104
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition
If there are any streaks or drying stains on the surface, repeat the
cleaning procedure.
How to clean metal filters or attenuator
gratings
This kind of device is extremely fragile. A misalignment of the grating
leads to inaccurate measurements. Never touch the surface of the
metal filter or attenuator grating. Be very careful when using or
cleaning these devices. Do not use cotton swabs or soft tissues, as
there is the danger that you cannot remove the lint and that the device
will be destroyed by becoming mechanically distorted.
Preferred Procedure
Use the following procedure on most occasions.
1 Use compressed air at a distance and with low pressure to remove
any dust or lint.
Procedure for Stubborn Dirt
Do not use an ultrasonic bath as this can damage your device.
Use this procedure when there is greasy dirt on the device:
1 Put the optical device into a bath of isopropyl alcohol, and wait at
least 10 minutes.
2 Remove the fluid using compressed air at some distance and with
low pressure. If there are any streaks or drying stains on the
surface, repeat the whole cleaning procedure.
Additional Cleaning Information
The following cleaning procedures may be used with other optical
equipment: