TK3-2E Bently Nevada Calibration Instrument | New

Global PLC Spare HUB's Insight

The Bently Nevada TK3-2E remains the industry standard for physical verification of proximity transducer systems. From a technical perspective, this mechanical simulator bridges the gap between digital readings and physical reality. By using a motor-driven wobble plate to simulate vibration and a spindle micrometer for position, the TK3-2E allows engineers to verify the entire signal chain—from the probe tip to the monitor rack—without rotating the actual machine shaft. This is a critical "sanity check" for any 3500 Series or 7200 Series monitoring installation where sensor gapping and linearity are paramount.

Technical Architecture & Specifications

• Brand: Bently Nevada
• Model: TK3-2E
• Series: TK Calibration Series
• Type: Mechanical Vibration & Position Simulator
• Vibration Amplitude Range: 50 to 254 µm (2 to 10 mils) peak-to-peak
• Electric Drive Speed: Up to 10,000 cpm
• Air Drive Speed: Up to 5,000 cpm
• Position Resolution: Micron-level mechanical spindle control
• Input Voltage: 95 to 125 Vac (Standard) / 190 to 250 Vac (Optional)
• Air Supply Requirement: Up to 90 psi
• Target Material: Hardened alloy steel (AISI 4140 equivalent)
• Weight: 5.9 kg (Portable Field Unit)
• Dimensions: 215 mm x 184 mm x 285 mm

Core Diagnostic Capabilities

• Verification of Proximity Probe linearity and scale factor.
• Simulated vibration testing for alert and danger setpoint validation.
• Thrust position (axial) calibration using the precision micrometer.
• Identification of "cross-talk" or cabling interference in the signal loop.
• Loop check validation from the machine skid to the control room HMI.

Application Scenarios & Device Compatibility

• Testing Bently Nevada 3300 XL 5mm, 8mm, and 11mm proximity probes.
• Annual calibration of 3500 Series Machinery Protection Systems.
• Bench-testing replacement probes before field installation.
• Training technicians on probe gapping and voltage-to-distance curves.
• On-site troubleshooting of erratic vibration readings during operation.

Logistics, Packaging & Warranty

• Shipping Partners: Rapid global dispatch via FedEx, UPS, and DHL.
• Delivery Lead Time: Usually ships within 24-48 hours.
• Condition: Brand new, factory-tested, in protective industrial packaging.
• Warranty Period: Full 12-month factory warranty included.

Selection & Procurement Guidance

• The TK3-2E is the electric-driven version; verify your local voltage (110V vs 220V) before ordering.
• Ensure the target button material matches your specific shaft metallurgy for accurate results.
• For sites without reliable AC power, ensure your compressed air supply meets the 90 psi requirement for the pneumatic drive.
• Always source from Global PLC Spare HUB to ensure genuine Bently Nevada instrumentation.

Expert FAQ: Professional Insights

• Question: How does the TK3-2E simulate a "Wobble" for vibration testing?
• Answer: The unit utilizes a motor-driven slanted plate (wobble plate). As it rotates, the distance to the probe tip changes cyclically, simulating shaft vibration without an actual rotating mass.
• Question: Can I calibrate 11mm or 25mm probes with the TK3-2E?
• Answer: Yes, provided you use the correct probe holder adapters. The standard unit supports common 8mm probes, but the swing-arm is adjustable for larger diameters.
• Question: What is the significance of the "Target Button" metallurgy?
• Answer: Eddy current probes are sensitive to material composition. The TK3-2E uses a standard steel target to match the calibration curve of most industrial shafts.
• Question: Why should I choose the electric TK3-2E over a strictly manual micrometer?
• Answer: The electric motor allows for dynamic testing (vibration), whereas a manual micrometer only confirms static position (thrust). The TK3-2E provides both.
• Question: Does the unit require periodic recalibration?
• Answer: The mechanical micrometers should be checked annually against certified gauge blocks to maintain ISO compliance for your maintenance laboratory.

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