Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave 
Multichannel System, Fourth Edition
3
Safety Considerations
The following general safety precautions must be observed during all phases of 
operation, service, and repair of this instrument. Failure to comply with these 
precautions or with specific warnings elsewhere in this manual violates safety 
standards of design, manufacture, and intended use of the instrument. Agilent 
Technologies Inc. assumes no liability for the customer’s failure to comply with 
these requirements.
General This is a Safety Class 1 instrument (provided with a protective earth 
terminal) and has been manufactured and tested according to international safety 
standards.
Before operation, you should review the instrument and manual for safety 
markings and instructions. You must follow these to ensure safe operation and to 
maintain the instrument in safe condition.
Some Agilent 8164A circuits and some Agilent 8166A circuits are powered 
whenever the instrument is connected to the AC power source. To disconnect 
from the line power, disconnect the power cord either at the rear power inlet or at 
the AC line power source (receptacle). One of these must always be accessible. If 
the instrument is in a cabinet, it must be disconnected from the line power by the 
system’s line power switch.
WARNING To avoid hazardous electrical shock, do not perform electrical tests when there 
are signs of shipping damage to any portion of the outer enclosure (covers, 
panels, and so on).
Line Power Requirements
The Agilent 8163A Lightwave Multimeter can operate from the single-phase AC 
power source that supplies between 100 V and 240 V at a frequency in the range 
50 to 60 Hz. The maximum power consumption is 120 VA with all options 
installed. 
The Agilent 8164A Lightwave Measurement System can operate from any 
single-phase AC power source that supplies between 100 V and 240 V at a 
frequency in the range from 50 to 60 Hz. The maximum power consumption is 
270 VA with all options installed.
The Agilent 8166A Lightwave Multi-Channel System can operate from any 
single-phase AC power source that supplies between 100 V and 240 V at a 
frequency in the range from 50 to 60 Hz. The maximum power consumption is 
450 VA with all options installed.