Laser beta lasermike LS8000-3 - Manual (Page 215)

LaserSpeed 8000-3 Instruction Handbook
Appendix E: Troubleshooting Guide
Part No. 93463 / Drawing No. 0921-01561 Page 215 of 221 Revision A (Sep 2007)
Gauge misalignment 2. If using transmissive sensors, verify
that the transmitter is pointed directly
at the receiver.
3. Install a lens on the transmitter to
focus the light better onto the
receiver.
Make sure the gauge is aligned to the
product properly as described in the
Aligning The Gauge section.
Part Length Readings are always
999999.999 Material Present settings
improperly adjusted. Increase the Material Present Validation
Time.
Material Present not detected
--or—
Material Present flickering on and
off
Note: The laser must be turned
ON. Object interfering with beam
path
Dirty quick change window
Environmental conditions
(i.e. roll coolant, or coolant
mist, spray and fume) may
be interfering with the
optical path)
Measured Material is
moving outside the
measurement region, or the
material is changing angle
and moving laterally.
Note: For tube length
measurement applications,
Beta LaserMike
recommends that the lateral
movement of the tube with
respect to the sensor be no
greater than 1/5
th (20%) the
diameter of the tube.
Inspect laser beam path and remove
object or obstruction
1. Check Quick change window for
contamination
2. Clean or exchange quick change
window.
1. Check for coolant mist, spray and
fume in optical path of gauge.
(Purchase and install Beta
LaserMike beam path air purge if
currently not using such a device.)
2. Check and adjust air pressure
utilities supplied to beam path air
purge
3. If roll coolant is gathering (collecting)
on the measured surface beneath
the LaserSpeed gauge, install a
proper air wipe (air knife) system to
blow off such coolant.
1. Check to make sure that the laser
spot is properly hitting the material.
Adjust the sensor or material if
necessary.
2. Check the position of the material
with respect to the sensor depth of
field. Adjust sensor standoff if
necessary.
3. Check the movement of the material
with respect to the gauge. The
material should be kept
perpendicular to the gauge.
4. Stabilize or guide the movement of
the material at measurement
location.