4.7 Changing Measurement Mode
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4
Changing Measurement Conditions
To release external trigger
1. Press
f2 Ext. Trigger Delay
.
2. Press
f1 Off
.
To set measurement time interval (Interval Time)
1. Press
f3 Interval Time
.
2. Enter the time using the keypad or rotary knob.
The delay time can be entered from 0 s to 5940 s (99 m).
Note:
The measurement time interval is from the start of one sweep until
the start of the next sweep. If the time for one sweep is longer than
the measurement time interval, that setting is ignored.
To perform power measurement (Power Monitor)
At power measurement, the value of the optical power input to the
MS9740B is displayed.
1. Press
f4 Power Monitor
.
2. Press
f1 Wavelength
.
3. Select the wavelength from
f1
to
f4
.
It may take about 10 seconds to display the power measurement
data.
Note:
Power Monitor can not be selected when Application functions are
running.
To release power measurement
1. Press
f4 Power Monitor
.
2. Press
f7 Off
.
To set Multimode Fiber Mode (MM mode)
When using multimode fiber, read the precautions in Section 2.7.
Use multimode fiber in the following conditions:
●
When measuring faceted light sources such as LEDs, VCSELs, etc.
●
When measuring in recommended launch mode using dummy fiber
patch cord (GSGG) for optical loss measurement
1. Press
f5 MM Mode.
2. Set to On.
3. MM Mode On is displayed at the bottom right of the screen.
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