Bently Nevada TK-3E Proximity System Test Kit

Bently Nevada TK-3E Proximity System Test Kit

Configured for shaft vibration and position simulation in Bently Nevada proximity transducer systems, the Bently Nevada TK-3E (TK-3 Proximity System Test Kit) provides direct physical/electrical execution.

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage Validation

The instrument utilizes a precision-machined AISI 4140 alloy steel target button to perform eddy-current probe scaling verification across standard displacement increments. During operational validation, the spindle micrometer acts as the calibrated mechanical reference to verify the Proximitor Sensor output voltage against precise displacement changes. Technicians use this mechanical input to perform gap voltage validation, mapping the standard -10 VDC targets representing the linear center of the transducer calibration curve. This verified scaling factor ensures the integrity of subsequent rotor dynamics measurements and eliminates verification errors induced by improper probe-to-target alignment.

Frequently Asked Questions

Q: How is the universal probe mount adjusted to eliminate cross-talk or mechanical slip during calibration?

A: The universal probe mount features a secure mechanical clamp that accommodates probe diameters from 5 mm to 19 mm. To prevent slip or measurement variance, the isolation fixture must be torqued to prevent axial movement while ensuring the probe body remains perfectly perpendicular to the AISI 4140 alloy steel target surface.

Q: Can this unit verify the absolute scale factor of a proximity probe without an oscilloscope?

A: Yes. By adjusting the probe position over the motor-driven wobble plate via the swing-arm assembly, the mechanical vibration amplitude translates directly to a peak-to-peak DC voltage variation. A standard high-accuracy multimeter measuring the Proximitor output is sufficient to determine calibration accuracy.

Field Installation and Operation Guidelines

1. Place the test kit on a flat, vibration-free surface. Ensure the magnetic base of the spindle micrometer assembly is secured properly to the reference plate prior to adjusting the mechanical gap.
2. For mechanical safety and accurate measurements, maintain a minimum of 5 full thread engagements if mounting adapters or extension fixtures are used with the probe assembly.
3. Align the proximity probe tip normal to the AISI 4140 target button face. Improper angular alignment introduces measurement error in the eddy-current field response.
4. When utilizing the motor-driven wobble plate, ensure the swing-arm lock is fully engaged to prevent structural resonance from distorting the peak-to-peak displacement signal.