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Making Measurements
Defining Laser-Line Peaks
3 Press PX EXC, and enter the peak excursion value. Use the softkey
to select the digit that requires editing. Use the and softkeys to
change the value.
The peak excursion value can range from 1 to 30 dB. The default value
is 15 dB.
4 Press RETURN.
5 Press PK THLD and then enter the peak threshold value.
The peak threshold value can range from 0 to 40 dB. Setting this value
to 0 dB ensures that only the peak wavelength is identified. The default
value is 10 dB.
Pressing the green PRESET key changes the peak excursion and peak
threshold values to their default settings. It also turns wavelength
range limiting on. Turning the Agilent 86120C’s power off and then on
does not change these settings.
If too many lines are identified
If the following message is displayed, too many laser lines have been identified:
E15 MAX NUMBER OF SIGNALS FOUND
The maximum number of laser lines that the instrument can measure is 200. If
this message appears, decrease the peak threshold value, increase the peak
excursion value, or decrease the wavelength range of operation with the WL
LIM ....START WL and STOP WL functions.