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Making Measurements
Measuring Laser Separation
To measure channel separation
1 Press the front- panel Preset key.
2 Press List by WL.
3 Press the Delta On key.
Use the Off key to turn off the measurement.
4 Select the type of separation to observe:
• ∆ WL displays channel separation.
• ∆ WL / ∆ PWR displays both channel separation and differences in
power.
5 Use the
and
6 Press SELECT.
Press SELECT at any time to select a new reference. Press RESET at any
time to turn off the delta calculation.
2-20
softkeys to select the reference laser line.
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