Chapter 14 Optical Power Testing
CellAdvisor JD720C Series User
’s Manual
113
Setting parameters
You can set measurement parameters such as wavelength, measurement unit, threshold
limit, alarm option, and reference.
Procedure
1
Press the
SETUP
hard key and touch the
Setting
tab.
The Setting setup window appears.
2
To set the desired wavelength for testing, do one of the following:
–
To detect a wavelength automatically, select
Auto
for the Wavelength.
–
To select an available wavelength from the list manually, complete the following steps:
a
Select
Manual
for the Wavelength.
b
Tap the drop-down list button, and then select one of the listed wavelengths from the
choices:
780
,
820
,
850
,
980
,
1300
,
1310
,
1470
,
1480
,
1490
,
1530
,
1550
, and
1625
.
NOTE
The instrument displays not only the wavelength but also the modulation
frequency on the screen. If the Wavelength is set to Auto, it displays
“Auto”. If set
to Manual, the instrument displays a detected modulation frequency (0 Hz, 270
Hz, 330 Hz, 1 kHz, or 2 kHz).
c
Optional
. To add a new wavelength, tap on the input box in the Stored Wavelength
pane, enter a value, and then tap the
Add
button.
d
Optional
. To edit an existing wavelength, highlight a wavelength in the list, change the
value in the input box, and then tap the
Edit
button.
e
Optional
. To delete an existing wavelength from the list, highlight a wavelength in the
list, and then tap the
Delete
button.
3
To set the power level unit, complete the following steps:
a
Tap the drop-down list button for the Unit.
b
Select the unit option from the choices:
dBm
,
dB
, and
mW
.
4
To set the minimum threshold limit, complete the following steps:
a
Select the
On
radio button.
b
Enter a threshold value in the input box by using the numeric keys or the rotary knob.
c
Optional
. To sound alarm, select the
On
radio button for the Alarm.
NOTE
You must set the
Sound
option in the
System
setting to
On
to sound an alarm.
5
To select the way to get a reference value you want to set, do one of the following:
–
Measurement Value:
To use the last measurement value as a reference.
–
Manual:
To enter a reference value manually.
6
Tap the
Apply
button in the lower-right corner of the setup screen to save the change(s).
