MAINTENANCE AND CARE
Do not submerge
or expose the DP-4 to liquids. Wipe off any liquids immediately to prevent internal
contamination or degradation of the rubber seal and indicator lens. Do not use compressed air to clean
the probe as this will force conaminants past the seals. The probe body is stainless steel and should
only be wiped clean with compatible cleaners.
Storage
. When not in use, store the probe in a vertical or inverted vertical position, not on its side. This
minimizes stress on internal mechanical parts and distributes lubrication more evenly. Do not ship or
store the probe with the stylus mount boss pushed into the probe body as this will negatively affect
internal lubrication.
User repairs.
The DP-4 has no internal user serviceable parts or adjustments and should only be
serviced by Centroid.
Alignment adjustments.
Regularly check alignment. Any time the probe is removed from its holder,
the stylus is changed or the probe is used in a different machine, the alignment procedure should be
repeated to ensure accuracy. The user should also repeat the alignment procedure if the unit is dropped
or receives any sudden external shock. It is good practice to periodically check alignment for quality
control and to establish a base line maintenance schedule. See "Stylus Installation and Alignment
Procedures" section. If the probe stylus can not be dialed-in or aligned then the probe should be sent in
for evaluation and repair.
Probing errors
may be caused by many factors. If the errors are random in nature check surface
condition of stylus tip and probed surface, keep both clean also, check condition of probe cable. If the
errors are consistent and repeatable check that parameters are set correctly for speed and clearance.
Also check that machine backlash or other parameters have not changed. If the probe indicator LED
stays red when the stylus is not touching a surface, gently move the stylus by hand within it's over-
travel limits. This will re-distribute lube and spring pressure. If the probe indicator LED contiues to
stay red the probe may be damaged and must be returned for evaluation and repair. The DP-4 has no
internal user serviceable parts or adjustments and should only be serviced by Centroid.
SHIPPING INSTURCTIONS
Contact Centroid Technical Support at 1-814-353-9290 for a description of the return policy and
assistance in determining if return is necessary, before sending your probe back.
If the probe must be shipped it should be removed from the tool holder and the stylus must be removed
from the probe. Use the original plastic shipping tube and insert the probe in the tube with the stylus
mount boss located inside the foam ring in the tube. The foam should prevent the stylus mount boss
from touching the end of the plastic tube if jarred during shipping. Do not ship or store the probe with
the stylus mount boss pushed into the probe body as this will negatively affect internal lubrication.
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