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3300 XL Proximity Transducer System Manual
If the incremental scale factor (ISF) or the average scale factor (ASF) of the
system is out of tolerance, contact Bently Nevada Corporation for further
information on possible calibration problems.
The preceding pages indicate scale factor verification using a TK-3. This is
suitable for rough verification. For API 670 system verification a more precise
micrometer and target must be used. There are two different 3300 XL
Micrometer Kits that can be used to verify the calibration of our transducer
systems or to check the scale factor of specific shafts. Both micrometer kits will
work with Bently Nevada eddy current transducers ranging in size from the 3300
RAM transducer system up to the 7200 14 mm transducer system. Both
micrometers also have options for either a metric or English micrometer.
The 3300 XL Precision Micrometer (p/n 330185) is a highly accurate
verification device. It should be used when performing acceptance testing on our
transducer systems. All of our transducer systems have a specified linear range
and average scale factor (ASF). The transducer systems also have a maximum
deviation from straight line (DSL) and ISF tolerances for ambient and extended
temperatures. The 3300 XL Precision Micrometer comes with a high precision
4140 steel target and is used to make precise measurements and verify whether
the transducer system is working properly and within published specifications.
The 3300 XL Shaft Micrometer (p/n 330186) is used to check the scale factor
of the transducer system directly on your shaft. You can compare the scale
factor of your transducer system with that of a Bently Nevada supplied 4140
steel target to check whether errors in the measurement are due to runout, target
material or a problem in the transducer system.
Troubleshooting
This section shows how to interpret a fault indication and isolate faults in an
installed transducer system. Before beginning this procedure, be sure the system
has been installed correctly and all connectors have been secured properly in the
correct locations.
When a malfunction occurs, locate the appropriate fault, check the probable
causes for the fault indication and follow the procedure to isolate and correct the
fault. Use a digital voltmeter to measure voltage. If you find faulty transducers,
contact your local Bently Nevada Corporation office for assistance.
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Troubleshooting
