Campbell CS135, User Manual

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CS135 Ceilometer
58
It is advisable to use an air duster to blow any loose dust and dirt from the
window as a first step. Using a lint free lens cloth or lens tissue impregnated with
a small amount of isopropyl alcohol solvent clean the surface by dragging the
cloth across it being careful not to apply excessive pressure.
Excessive pressure may lead to some types of contaminant scratching the window
surface. Over time such scratches can lead to reduced sensitivity.
7.3 Removing the Cover
The cover is removed by removing the four screws as shown in Fig 7.1.
Fig 7.1 Removing the Cover
The cover can then be lifted away.
The cover contains a flying lead used to take power to the
hood heater and blower. Be careful not to trap and damage
this when lifting the cover clear.
Removing the cover reveals two carrying handles that allow the CS135 to be
moved easily.
CAUTION