Optical Backscatter Reflectometer 4600 205
User Guide
Cause(s) Solution(s)
Generally this occurs when
other software is installed on
the PC.
Remove any software not originally installed on the OBR
PC, then restart.
If the problem persists, reinstall the OBR control software
from the OBR software CD.
Laser Ready light does not come on within several minutes
Cause(s) Solution(s)
The OBR has not stabilized to
room temperature.
Allow time for the entire system to stabilize at room
temperature before trying to operate.
Laser overheated because air
flow to the OBR is restricted.
Move the OBR away from objects or surfaces that
restrict air flow through the fan duct on the back of the
OBR.
Laser overheated because of
excessively high ambient
temperature.
Move the OBR to a cooler environment or decrease the
ambient temperature to within the OBR operating range
of 10–35
o
C.
If all of the above conditions are met and the Laser
Ready light still does not come on, run the Self-
Diagnostic software and send the resulting text file to
Luna (as described beginning on page 211). Then you
may contact Luna Technologies toll free at 866-
LUNAOVA (866-586-2682) or by e-mail at
support@lunatechnologies.com.
Control software will not load
All software controls are disabled or unavailable
10
Cause(s) Solution(s)
The instrument is not properly
connected to the PC.
Ensure that the cable connecting the instrument to the
PC is securely attached.
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