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3-4 Power Measurement (Absolute Value Measurement)
When the power is turned ON, measurement begins. The optical
power level is displayed in the measured value display area. If the
units are dB, loss measurement (relative value measurement mode) is
indicated. Press the dBm/W key to switch to power measurement
(absolute value measurmeent mode).
●
Switching the Displayed units
You can switch the units of display for the measured value to either
dB scale (dBm), or linear scale (W).
Key
Display
Description
dBm/W dBm => mW/µW/nW (automatically
selected)=> dBm
Each time you press the
key, the displayed units
change.
<Display Example>
Screens When Switching the Displayed Unit
Displays dBm Displays W
PWR SAVE
nm
CW
μ
W
PWR SAVE
PWR SAVE
nm
CW
μ
W
PWR SAVE
nm
CW
dBm
PWR SAVE
PWR SAVE
nm
CW
dBm