Renishaw MP12 Installations- Und Anwenderhandbuch Seite 37

FAULT FINDING – If in doubt, consult your probe supplier.
PROBE IS TRANSMITTING SPURIOUS READINGS
Damaged cables.
Electrical interference.
Optical interference from
other systems.
System malfunction or
inducing intermittent
errors.
Poorly regulated power
supply.
Excessive machine
vibration.
Loose mountings or styli.
PROBE FAILS TO RESEAT CORRECTLY
Probe trigger occurred on
reseat.
Inner and/or outer probe
diaphragm is damaged.
Check and replace cable if damage is found.
Move transmission cables away from other
cables carrying high currents.
Reduce optical power – see page 1-32.
Shield from intense light sources, e.g. xenon
beams.
Electrically isolate OMM from the machine to
prevent any possibility of earth loop.
Ensure there are no arc welders,
stroboscopes or other high intensity light
sources in close proximity to the probe
system.
Ensure power supply is correctly regulated.
Switch on enhanced trigger circuit. Eliminate
vibration.
Check and tighten loose connections.
Move stylus clear of workpiece.
Inspect/replace outer diaphragm. Return to
supplier if inner diaphragm is damaged.
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