Laser beta lasermike LS8000-3 - Manual (Page 212)

LaserSpeed 8000-3 Instruction Handbook
Appendix E: Troubleshooting Guide
Part No. 93463 / Drawing No. 0921-01561 Page 212 of 221 Revision A (Sep 2007)
moving IN and OUT of the
measurement region.
Object interfering with beam
path.
Detector saturation
Note: This condition may
only happen when
measuring on flat products
such as: "bright-rolled"
steel, stainless steel and
aluminium strip. respect to the sensor standoff
distance and depth of field.
2. Adjust the sensor or control the
material pass line if necessary.
Inspect laser beam path and remove
object or obstruction.
1. Tilt the sensor in the non-critical
angle approximately 2-3 degrees.
The non-critical angle is referenced
in Figure 5-1 (Chapter 5) in the
instruction manual. Monitor the QF
value while adjusting the sensor.
2. Contact Beta LaserMike for
additional support.
Quality Factor is 15, but the
measured velocity is very close to
zero, or much smaller than the
actual velocity. Mounting in the wrong
direction This happens when the gauge is
mounted at a 90
° angle to the direction
of movement. Verify that the gauge is
mounted properly. See the
Aligning The
Gauge section for the correct
orientation.
Quality Factor is poor or 0 and two
laser spots are visible. Mounted at the wrong
standoff If the gauge is mounted at the correct
standoff distance from the product being
measured, then the beams will overlap,
making a single laser spot. See
Appendices A-C for detailed mounting
dimensions.
Quality factor is 15 but velocity is
always zero.
-- or --
Valid light is on but the gauge is
not measuring velocity/speed. Calibration Trim
Walking Threshold Verify that "Calibration Number Adjust"
is set to 100 and not 0.
Make sure the Walking Threshold is set
to a speed lower than the gauge is trying
to measure. Set the Walking Threshold
to 0 to disable this feature.
Gauge used to work, but now
can't get any valid readings, even
though everything else is correct.
--- or ---
Valid measurements at some
speeds but not other speeds, or E setting has been
changed.
Minimum or Maximum
Velocity Limit settings For the LS9000, the E setting must
always be set to 31. Never change this
setting unless specifically directed to do
so by Beta LaserMike.
For the LS4000 gauge, set E to 287.
For the LS8000 gauge, set E to 31.
LS9000 Only:
The Minimum Velocity Limit and
Maximum Velocity Limit settings will
prevent the gauge from producing