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Diagnosing Common Errors
Exicor 150AT User Manual
73
Symptom
Common Causes
Solutions
6
DC level is 0 V with
no sample present
The laser is not ON
The light path is blocked
Check that the laser is on by putting a
piece of paper in the beam path and
observing the red laser spot on the
paper
If the laser is not ON, check the laser
fuse. Replace as necessary.
Check the light path for anything that
may be blocking the light from reaching
the detector.
7
DC level is 0 V when
measuring a sample
The laser is not ON
The light path is blocked
Sample does not transmit
light at 633nm
Check that the laser is on by putting a
piece of paper in the beam path and
observing the red laser spot on the
paper
If the laser is not ON, check the cable
connection between the Source Module
and the Master Electrical Enclosure
Check the light path for anything that
may be blocking the light from reaching
the detector
Observe the laser spot between the
sample and the detector. If the sample
scatters or absorbs the light, the sample
cannot be measured by the system
8
Birefringence = -0.1
in data file
9
Shows ‘Blocked’ in
Retardation box
10
Measurement point
on birefringence plot
is a red
X
or is not
plotted
11
Birefringence
magnitude is large
with no sample
present
Offset correction not
performed regularly
Beam obstructed during
offset measurement
Perform air offset measurement, making
sure the beam path is not obstructed.
12
Birefringence
magnitude is larger
than expected with
sample present
13
Software freezes
during scan
Some hardware was turned
off or disconnected
Check all hardware cable connections
Occasionally, the PC screen saver
causes software freezes. Turn off
screen saver
Restart software
Table 6.1 Diagnosing Common Errors
Содержание EXICOR 150AT
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Страница 7: ...Table Of Contents Exicor 150AT User Manual v ...
Страница 16: ...Operator s Safety Summary Exicor 150AT User Manual 6 Figure S 1 Laser Beam Path ...
Страница 17: ...Laser Safety Exicor 150AT User Manual 7 Figure S 2 Compliance Labeling ...
Страница 21: ...Exicor 150AT User Manual 11 ...
Страница 26: ...Chapter 1 Overview of the Exicor Birefringence Measurement System 16 Exicor 150AT User Manual ...
Страница 29: ...Loading a Sample Exicor 150AT User Manual 19 ...
Страница 49: ...Configuring the System Exicor 150AT User Manual 39 Figure 4 6 Auto Calibration Settings Dialog Box ...
Страница 74: ...Chapter 4 Operating the System 64 Exicor 150AT User Manual ...
Страница 81: ...Cleaning the Cabinet Exicor 150AT User Manual 71 ...
Страница 90: ...Appendix F Exicor 150AT Limited Warranty 80 Exicor 150AT User Manual ...