18
Shock pulse transducers
Built-in transducer with probe
Measuring points for the built-in probe should be clearly
marked. Always measure in the same spot. In addition, the
probe is used to measure elsewhere on the machine, in case
it is necessary to search for other shock pulse sources such as
pump cavitation or rubbing parts.
The probe tip is spring loaded and moves within a sleeve of
hard rubber. To maintain a steady pressure on the tip, press the
probe tip against the measuring point until the rubber sleeve
is in contact with the surface.
Hold the probe steady to avoid rubbing between its tip and
the surface.
The probe is directionally sensitive. It must be pointed straight
at the bearing.
The centre of the probe tip should touch the surface. Avoid
pressing the probe tip against cavities and fillets which are
smaller than the probe tip.
Shock pulse transducer with handheld
probe
The handheld probe can be used to reach measuring points in
narrow spaces and has the same construction and method of
operation as the built-in transducer (see above).
The only part likely to wear out is the rubber sleeve for the
probe tip. It is made of chloroprene rubber (neoprene) and tol-
erates 110° C (230° F). Spare sleeves have part number 18128.
Avoid small cavities and fillets
Transducer with probe
TRA73
Rubber sleeve in contact with the
surface
Point at the bearing
Hold steady
To Next Page
Loading...
Need help?
General