Laser LS8000-3 manual Quality Factor/Valid Measurements, Result of Laser beam inspection

LaserSpeed 8000-3 Instruction Handbook

Appendix E: Troubleshooting Guide

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 not well guided
product

Poor Quality Factor on product	Too much coolant on
with liquid/coolant	product
	Steam or spray in the beam
	path
	Quick-Change Window
Valid LED is not illuminated	Something is affecting the
	laser beams
-- or --
The gauge is not measuring

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.

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.

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

Part No. 93463 / Drawing No. 0921-01561 Page 209 of 221 Revision A (Sep 2007)