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18
Transducer with quick connector
All types of shock pulse transducers are connected to the transducer
input (8). The choice of transducer type depends on how the measur-
ing point is prepared. For systematic shock pulse monitoring, SPM
recommends the use of permanently installed adapters and quick-
connect transducer wherever possible.
Adapters are solid metal bolts of different length and thread sizes,
tuned for correct signal transmission. They are installed in threaded,
countersunk mounting holes on the bearing housings. Glue-on adapt-
ers are available.
To attach the transducer with quick connector, press it against the
adapter and twist clockwise. Twist counter-clockwise to remove it.
Adapter surfaces must be clean and plane. Use an adapter cap to
protect them.
Check that installed transducers and adapters are properly mounted
(see the instruction on SPM installations) and in good condition. You
cannot expect a useful signal by attaching the quick connect trans-
ducer to a rusty lump of metal, or from a transducer that is rolling
on the floor on the other side of a partition.
Push and
twist
Installed
transducer
Measuring
terminal
Permanently installed transducers and
measuring terminal
A permanently installed transducer and a measuring terminal (BNC
or TNC connector) are used when the bearing cannot be reached
directly. Use a measuring cable to connect instrument and terminal.
Use SPM dust caps to protect the connector.
Check that installed transducers and adapters are properly mounted
(see the instruction on SPM installations) and in good condition. You
cannot expect a useful signal by attaching the quick connect trans-
ducer to a rusty lump of metal, or from a transducer that is rolling
on the floor on the other side of a partition.
TRA74
Standard
adapter
Standard
transducer