Laser beta lasermike LS8000-3 - Manual (Page 209)

LaserSpeed 8000-3 Instruction Handbook
Appendix E: Troubleshooting Guide
Part No. 93463 / Drawing No. 0921-01561 Page 209 of 221 Revision A (Sep 2007)
communications.
much better noise immunity than RS-232.
USB to RS-422 converters are
commercially available.
Quality Factor/Valid Measurements
Poor Quality Factor on round
product
Product not well guided Check guiding and product vibration.
Try to keep the laser spot within +/- 10%
percent of the product diameter. This is
more critical on clear or shiny products.
If the product begins to vibrate at higher
line speeds, guide rollers may need to
be placed closer to the laser spot.
Poor Quality Factor on product
with liquid/coolant Too much coolant on
product
Steam or spray in the beam
path
Quick-Change Window LaserSpeed gauges can measure on
thin coatings of liquid but may not work
well on thick or flowing coatings.
Install a fan to blow steam away from
the beam path to see if the QF
improves. Purchase and install a beam
purge on the gauge.
Remove and inspect the Quick-Change
Window. Clean with a clean cloth.
Replace the window if it's scratched or
damaged.
Valid LED is not illuminated
-- or --
The gauge is not measuring Something is affecting the
laser beams
Check that the sensor is emitting two
laser beams and that they are elliptical
in shape. Measure the laser power if
possible and report value to Beta
LaserMike.
Result of Laser beam inspection:
Result A: The sensor emits two laser
beams but they are not elliptically
shaped.
Action:
1. Check quick change window for
contamination
2. Clean or exchange quick change
window.
Result B: The sensor emits two laser
beams and they elliptically shaped.
1. Check distance to the product and