LaserSpeed 8000-3 Instruction Handbook

Appendix E: Troubleshooting Guide

Environmental Conditions (i.e. roll coolant, or coolant mist, spray and fume) are adversely affecting the measurement.

 

Measured material is

 

moving in and out of the

 

measurement region.

 

 

Gradual drop of Quality Factor

Dirty quick-change window

(QF)

 

Low laser power

Quality Factor "Hunting." The

Environmental Conditions

quality factor appears unstable or

(i.e. roll coolant, or coolant

fluctuating. Such condition might

mist, spray and fume) are

also report quality factor at a very

adversely affecting the

low value.

measurement.

Measured material is

window.

1.Inspect the environmental conditions at the measurement area.

2.Check the operating conditions of the compressed air utilities.

3.If using a beam path air purge, check the clean make-up air duct for any damage (holes and tears) that may be drawing in contaminated make-up air from the mill environment.

4.Install proper beam path air purge and/or air wiping (air knife) system to keep optical beam path and measured surface clear and clean.

Check material pass line with respect to the sensor standoff distance and depth- of-field. Adjust the sensor or control the material pass line if necessary.

1.Check the quick change window for contamination.

2.Clean or exchange quick change window.

1.Measure laser power if possible and report value to Beta LaserMike

2.Exchange sensor with spare unit or swap with another sensor nearby. If QF value returns to normal operating value (15), contact Beta LaserMike for evaluation and repair.

1.Inspect the environmental conditions at the measurement area.

2.Check the operating conditions of the compressed air utilities.

3.If using a beam path air purge, check the clean make-up air duct for any damage (holes and tears) that may be drawing in contaminated make-up air from the mill environment.

4.Install proper beam path air purge and/or air wiping (air knife) system to keep optical beam path and measured surface clear and clean.

1. Check material pass line with

Part No. 93463 / Drawing No. 0921-01561

Page 211 of 221

Revision A (Sep 2007)

Page 211
Image 211
Laser LS8000-3 manual LaserSpeed 8000-3 Instruction Handbook