Laser LS8000-3 manual Air Wipe / Quick Change Window, Steam & Mist

LaserSpeed 8000-3 Instruction Handbook

Installing the System

coolant is blown off in the same direction the material is moving, the air velocity can add or subtract from the material’s velocity; this too may cause erroneous measurements.

Air Wipe / Quick Change Window

To prevent dust, dirt, and moisture from accumulating on the optical window the gauge can be fitted with an Air Wipe/Quick Change Window. Clean, instrument grade air (see Specifications section for details) is blown at low pressure over the window to keep it clean. The window can be removed for easy cleaning. A clean, soft cloth should be used to clean the window. If an abrasive cloth is used, the optical coating may be damaged, leading to poor measurements. When replacing the window, put a small amount of vacuum grease on the O-Ring.

For measurements and details about removing the Air Wipe/Quick Change Window, see Appendix A.

Steam & Mist

Steam or mist is sometimes present in some applications. The air-wipe is not designed to clear steam or mist between the gauge and material, but only to keep contaminants from depositing on the optics window. Another means of removing steam or mist may need to be used. The steam or mist may be light enough to allow the laser beams to pass through without interference. If this is not true, a fan may be used to clear out the steam or mist between the gauge and housing. If a fan is not adequate or practical, an “air purge” can be installed to clear the beam path. Contact your Beta LaserMike representative

Part No. 93463 / Drawing No. 0921-01561 Page 18 of 221 Revision A (Sep 2007)