Product Description
Product Details
- Manufacturer: Bently Nevada
- Model/Part Number: TK3-2E
- Model Type: Calibration Instrument
General Overview
The TK3-2E and TK3-2G are self-contained calibration instruments, designed for use with proximity transducers (Proximitors). These instruments require proper power connections to function. The TK3-2E operates at 115/230 Vac, and users need to ensure the switch is correctly set to prevent circuit damage. The TK3-2G requires careful handling, as it must be kept upright to prevent oil spillage.
Recommended Maintenance Equipment
- Digital Multimeter (4-1/2 digits)
- Oscilloscope
- Power Supply
- Probes and Extension Cables
Minimum Specifications for Maintenance Equipment
- Multimeter: 1 megohm input impedance, ac volts up to 100 Volts, dc volts up to 100 Volts, dc current to 200 milliamps, resistance to 1 megohm.
- Oscilloscope: 10 Volts peak-to-peak, dc to 1 MHz bandwidth.
- Power Supply: -18V or -24 Vdc output, capable of at least 30 mA minimum output current, depending on the Proximitor used.
Equipment for Calibration
- Digital Multimeter: HP 3465A/B (DMM)
- Oscilloscope: Tektronix Model 5110
- Probes/Extension Cables: BNC
Specifications
Power
- TK3-2E: 95 to 125 Vac, 50 to 60 Hz, 1 amp max
- TK3-2G: 190 to 250 Vac, 50 to 60 Hz, 1 amp max
- Air Pressure: 40 to 90 psi @ 15 Std cfm max (2.76 x 10⁵ to 6.21 x 10⁵ N/m² @ 26 std cubic meters per hour)
Housing
- Material: High-impact plastic portable carrying case.
Dimensions (Overall)
- Height: 8-1/2 inches (216 mm)
- Width: 7-1/4 inches (184 mm)
- Length: 11-1/4 inches (286 mm)
Controls
- Wobulator Speed
- Vibration Amplitude ON/OFF (TK3-2E)
- Oil Drip Rate Adjustment (TK3-2G)
Probe Adapters (Body Diameter)
- Inches: 0.205, 0.250, 0.312, 0.323, 0.375, 0.437, 0.500, 0.562, 0.625, 0.675
- Millimeters: 5.2, 6.4, 7.9, 8.2, 9.5, 11.1, 12.7, 14.3, 15.9, 17.1
- Probe Without Adapter: 0.750 inch (19.0 mm)
Target Material
- Recommended Material: 4140 steel
Wobulator (Speed)
- TK3-2E: 10,000 rpm ±2,500 rpm (overspecified line voltage range)
- TK3-2G: 5,000 rpm (overspecified air pressure range)
Vibration Amplitude Range
- 2 mils to 10 mils (50 µm to 254 µm) peak-to-peak
Key Notes
- TK3-2E is intended for more rigorous tasks, capable of higher speeds and slightly more stringent line voltage requirements compared to the TK3-2G.
- TK3-2G has an oil drip rate adjustment feature, which is crucial for specific applications requiring controlled lubrication.