Applications
Balancing and Phase Measurement
Strobe Light
5 - 3
User Manual
If a Remote Optical Sensor or Magnetic Sensor is used
to sense one pulse per revolution (External mode), the
readout displays directly in RPM (FPM) without any
adjustment required.
In instances when you can shut down the device and
install a piece of reflective tape, then an optical
tachometer is easier to use for RPM measurement.
Stroboscopes must be used when you can not shut
down the device. The human eye is not easily tricked
into seeing a stopped image by a stroboscope when
the flash rate is slower than 300 FPM. Therefore,
stroboscopes are just about impossible to use below
300 FPM for inspection or to measure RPM.
Balancing and Phase Measurement
The Strobe Light contains an internally tuned filter
that is incorporated in a phase shifting network, which
allows the shaft reference mark to be directed at any
convenient location on the machine while balancing or
performing motion studies (phase measurement)
along a machine’s casing or along a machine train.
Examples of a convenient location are the machine’s
horizontal split line, top or bottom dead center, or the
plane of the reference transducer.
¾
It is advisable to log this reference
location so that it may be utilized in
future studies or balancing
procedures.
To set up for balancing or phase measurement, the
Microlog must be set up to obtain and record the
phase information supplied to it from the strobe and
the reference transducer.
