
LaserSpeed
Installing the System
Alternatively, the analog port can be configured to output QF on a
To ensure quality measurements, the laser beams must maintain “contact” with the product. If the product exhibits large movements during operation, it should be stabilized with external roller guides. Beta LaserMike offers optional product guides. Contact your local Beta LaserMike sales representative or the factory for additional information.
Material Present Adjustment
The intensity of the light reflected from the measurement area can be used to determine whether material is in the measurement zone or not. To compensate for varying reflectivity of different materials, it is often necessary to adjust the threshold of the light detection circuit. This adjustment can be made with a serial command or by using the LaserTrak software.
Material Present Dropout Time Selection
If you are taking measurements and the Material Present signal is lost for less than the selected Material Present dropout time, the loss is considered to be a momentary loss of signal and is ignored. If the signal is lost for longer than the selected Material Present dropout time, it is considered the end of the material. This function is very useful when making length measurements on poor reflecting material.
Validation Time Limit Selection
The validation time limit is used to start making length calculations. Two conditions are necessary to start a length measurement: Material Present and valid velocity data. When material enters the measurement volume, the system determines the time between the Material Present signal and the first valid data. If the time is less than or equal to the validation time limit (selectable via LaserTrak or ‘G’ command), then the
Part No. 93463 / Drawing No. | Page 32 of 221 | Revision A (Sep 2007) |