Product Overview

The Bently Nevada TK3-2E is a specialized portable calibration instrument designed to verify and troubleshoot the performance of proximity transducer systems. This versatile toolkit allows maintenance technicians to simulate both static shaft position and dynamic shaft vibration, ensuring that the entire monitoring chain—from the probe to the final monitor readout—is functioning with precision. By providing a controlled mechanical reference, the TK3-2E eliminates the guesswork involved in sensor gap settings and vibration amplitude verification, making it an essential asset for ensuring the reliability of Turbine Supervisory Instrumentation (TSI).

Hardware Parameters and Technical Capabilities

The TK3-2E is engineered for field durability and high-accuracy simulation. It integrates two primary testing mechanisms: a spindle micrometer for static displacement and a motor-driven wobble plate for dynamic vibration.

• Model Number TK3-2E

• Power Requirements 190–250 VAC, 50/60 Hz

• Vibration Amplitude Range 50 to 254 μm (2 to 10 mils) peak-to-peak

• Micrometer Range 0 to 25.4 mm (0 to 1.0 inch)

• Probe Diameter Support 5 mm to 19 mm (0.197 in to 0.75 in)

• Operational Air Pressure Up to 90 psi (6.2 bar)

• Physical Weight 6.02 kg (approx. 13.3 lbs)

• Mounting System Heavy-duty magnetic base for stable field operation

• Micrometer Type Removable spindle assembly for precise alignment

Industrial Applications and Operational Use

The TK3-2E is primarily used in the power generation, oil and gas, and petrochemical sectors to calibrate 3300 XL and other eddy current proximity probe systems. In a static application, the micrometer is used to create a calibration curve (voltage vs. gap), ensuring the linearity of the transducer. In dynamic applications, the electric motor spins the wobble plate to simulate actual shaft vibration, allowing technicians to verify that the 3500 Series or other monitors are reporting correct peak-to-peak values and triggering alarms at the appropriate thresholds. Its portability and "oscilloscope-free" vibration check make it the industry standard for on-site commissioning, routine maintenance, and fault diagnosis of critical rotating machinery.