Description

The Bently Nevada TK-3e, also cataloged as the TK-3e Test Kit, operates as a dedicated hardware component for on-site testing and calibration within proximity transducer system platforms. This electrically driven portable unit physically simulates controlled shaft vibration and target displacement. Consequently, the instrument validates the dynamic tracking loops of proximity transducer assemblies without requiring the prime mover to rotate.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The mechanical design utilizes an integrated electric motor to spin an asymmetric wobble plate, replicating high-frequency rotor dynamics for testing sensors calibrated to standard eddy-current probe scaling metrics. Field technicians route the probe under test into the universal mount to establish baseline gap voltage validation (-10 VDC targets) via the removable spindle micrometer. Because the rotating assembly utilizes genuine AISI 4140 alloy steel target faces, the simulation matches real-world machine interfaces exactly. This precision target simulation provides continuous cross-talk suppression and isolates physical displacement characteristics from sensor assembly faults.

Frequently Asked Questions

Q: How does the TK-3e differ fundamentally from the TK-3G model?

A: The TK-3e uses a universal electric motor (95 to 250 VAC) to drive the wobble plate, whereas the TK-3G relies entirely on a pneumatic, compressed-air motor architecture.

Q: Is the spindle micrometer calibrated for direct reading in metric or English units?

A: The standard TK-3e kit ships with either a metric or English micrometer barrel. Therefore, field users must verify the specific tool suffix to match local plant engineering units.

Field Installation Guidelines

1. Place the calibration enclosure on a level, low-vibration workbench before connecting the primary electrical power cord.
2. Confirm that the input voltage matches the 95 to 250 VAC threshold limits before toggling the motor power switch.
3. Secure the test probe firmly into the universal swing-arm clamp without overtightening the block to prevent case distortion.
4. Keep hands, clothing, and external diagnostic leads clear of the spinning wobble plate when the speed controller knob is active.
5. Wipe the AISI 4140 target plate with a lint-free towel before each test flight to prevent dust or oil films from corrupting data.