Technical data

4 Preserving Connectors
22 Cleaning Procedures
Immersion Oil and Other Index Matching
Compounds
Wherever possible, do not use immersion oil or other index
matching compounds with your device. They are liable to
impair and dirty the surface of the device. In addition, the char-
acteristics of your device can be changed and your measure-
ment results affected.
Cleaning Instrument Housings
Use a dry and very soft cotton tissue to clean the instrument
housing and the keypad. Do not open the instruments as there
is a danger of electric shock, or electrostatic discharge. Open-
ing the instrument can cause damage to sensitive compo-
nents, and in addition your warranty will be invalidated.
cleaning.book Page 22 Wednesday, May 22, 2002 5:16 PM