330500 Velomitor Sensor, 330525 Velomitor XA Sensor, 330530 Radiation Resistant Velomitor Sensor Operation Manual
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Step 4.
Drill and tap the mounting hole to the dimensions required by the adapter
stud. Drill the hole so that the sensitive axis of the transducer will be
perpendicular to a tangential plane on the machine casing. For the best results
the hole should be within
±
6 minutes of perpendicular.
Step 5.
Apply one drop of Loctite
®
242 brand or an equivalent adhesive to both
ends of the mounting stud.
Step 6.
Apply a small portion of Sperry Multi-Purpose Ultrasonic Couplant (P/N
04567900) to the mounting surface.
Step 7.
With the adapter stud tightened to the Velomitor® Sensor torque the
sensor to the machine case to 40 in-lb (4.5 N-m).
Applies to 330525 Velomitor® Sensor:
Step 1.
Verify that the ambient temperature and the temperature of the
installation surface are within the temperature rating of the transducer.
Step 2.
Verify that the mounting site will be suitable for drilling and tapping a hole
for a 1/4-18 NPT thread. Consider the hole depth and casing thickness when
selecting a mounting site for the transducer.
Step 4.
Drill and tap the mounting hole to the dimensions required by the 1/4-18
NPT stud. Standard drill size and depth is 7/16-inch and 0.90 inch, respectively.
Drill the hole so that the sensitive axis of the transducer will be perpendicular to a
tangential plane on the machine casing. For the best results, the holes should be
within
±
30 minutes of perpendicular. When hand tight, the mounting stud of the
transducer will have 2 or 3 threads exposed.
Step 5.
Using a Crescent® or socket wrench, tighten the 330525 Velomitor®
Sensor to the mounting site ¼ to ½ turn past hand tight engagement. This
corresponds to a mounting torque of approximately 400 in-lb.
2.3 Installing Connecting Cable
Application Alert:
Improper routing of cables through conduit can fray
the wiring, which may result in a short or loss of signal.
Application Alert:
If the sensor field wiring is reversed, then the bias
voltage of Velomitor® Sensor output will be within the monitor’s OK
limits, but the unit will not generate a vibration signal. The product
specification lists the valid voltage bias limits for the different Velomitor®
Sensors. The sensor must be within these limits to have a valid output
signal.
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