7
YY
Press and hold to activate
Secondary function of a key
XX
Press and release to activate
Primary function of a key
Dual Function Keys
Power key
Provides two functions:
•
Press the key to turn the OPM4 on/off. The unit will turn off automatically five minutes
after the last key press.
•
Press and hold the key to disable/enable the Auto Off feature.
Auto power down will occur after 5 minutes of inactivity.
- to disable the Auto Off feature, press and hold the power key until “HELD P on”
appears.
- to enable the Auto Off feature, press and hold the power key until “HELD AOFF”
appears.
Wavelength/Backlight key
Provides two functions:
•
Press and hold to toggle the Backlight on or off.
•
Press to cycle through the calibrated wavelengths
A
.
Note:
When the OPM4 is receiving a wavelength ID’d light, it automatically switches to
the ID wavelengths. WAVE ID indicator
B
appears on the display.
WAVE ID
WAVE ID
B
B
A
A
A
-88.88
8888
nm
µ
W
-88.88
-88.88
8888
8888
dB dBm
dB dBm
dB dBm
nm
nm
µ
W
µ
W
Single WAVE mode, or
Tri WAVE mode - second page
Dual WAVE mode, or
Tri WAVE mode - first page
dB/dBm/µW key
Provides two functions:
•
Press to toggle test readings between insertion loss in dB and power in dBm
A
.
•
Press and hold to view power in µW
B
.
WAVE ID
A
A
B
B
-88.88
8888
nm
µ
W
Hz
-88.88
8888
dB dBm
dB dBm
nm
µ
W
OPM4 Models
W
dB
dBm
