Cleaning Instructions
266 Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement 
System, & Agilent 8166A Lightwave Multichannel System, Fourth Edition
The following Cleaning Instructions contain some general safety precautions, 
which must be observed during all phases of cleaning. Consult your specific 
optical device manuals or guides for full information on safety matters. 
Please try, whenever possible, to use physically contacting connectors, and dry 
connections. Clean the connectors, interfaces, and bushings carefully after use.
If you are unsure of the correct cleaning procedure for your optical device, we 
recommend that you first try cleaning a dummy or test device.
Agilent Technologies assume no liability for the customer’s failure to comply 
with these requirements.
Cleaning Instructions for this Instrument
The Cleaning Instructions apply to a number of different types of Optical 
Equipment. Table 10 lists the sections that are relevant to the various modules 
that can be installed in this instrument.
Table 10 Cleaning Instructions for Modules
Modules Instruction
Optical Heads “How to clean instruments with an optical glass plate” 
on page 278
Laser Source Modules “How to clean instruments with a physical contact 
interface” on page 278
Tunable Laser Modules “How to clean instruments with a physical contact 
interface” on page 278
Return Loss Modules “How to clean instruments with a physical contact 
interface” on page 278
LED Source Modules “How to clean instruments with a physical contact 
interface” on page 278
Agilent 81633A/4A 
Power Sensor Modules
If you must clean these modules, please refer the 
module to the skilled personnel of Agilent’s service 
team.
All other Power Sensor 
Modules
“How to clean instruments with a recessed lens 
interface” on page 279