HP 8153A - Page 236

Cleaning Detector Lens Interfaces
As used on the HP 81522A and HP 8140A and HP 8153A detector modules.
Normally, the lens interface can be cleaned by using the blow brush. If adhesive
dirt must be removed perform as follows:
1. Using the blow brush, remove the dust from the lens surface.
2. Press the special cleaning tip to the lens surface and rotate the tip.
Note
4
Use alcohol for cleaning only then when above procedure does
not help or if the dirt is caused by oil or fat.
E-4 Cleaning Procedures