Description
The TK3-2 Calibration Instrument simulates shaft vibration and
position for calibrating Bently Nevada monitors. It verifies
the operating condition of the monitor readouts as well as the
condition of the proximity transducer system. A properly calibrated
system means that the monitor readings and transducer inputs
are accurate.
A spindle micrometer is used to check the transducer system
and position monitor calibration. A probe mounting adapter provided
with the TK3-2 holds the probe while the target is moved toward
or away from the probe tip in calibrated increments. The output
from the Proximitor® Sensor is recorded using a voltmeter.
Vibration monitors are calibrated using the motor-driven wobble
plate. A swing-arm holder is located over the wobble plate to
hold the proximity probe in place. The holder and probe are
adjusted to a position where the desired amount of mechanical
vibration is found. The vibration is then measured using a dial
micrometer which is supplied with the unit (no oscilloscope
is needed).
A vibration monitor’s reading can then be compared to
the known mechanical vibration signal input. The mechanical
vibration signal from the TK3-2 can range from 50 to 254 µm
(2 to 10 mils) peak-to-peak. |
