Company in the United States and other countries: Bently Nevada, Proximitor, Keyphasor Contact Information The following contact information is provided for those times when you cannot contact your local representative: Mailing Address 1631 Bently Parkway South Minden, Nevada USA 89423 Telephone 1.775.782.3611 1.800.227.5514 1.775.215.2855 Internet www.ge-energy.com/bently...
Additional Information Product Disposal Statement Customers and third parties, who are not member states of the European Union, who are in control of the product at the end of its life or at the end of its use, are solely responsible for the proper disposal of the product.
Section 1 - General Description 1. General Description The Bently Nevada Asset Condition Monitoring TK-3 Calibration Instrument (Figure 1-1 and Figure 1-2) provides a reference mechanical motion for performing field functional tests of machinery protection systems. The two TK-3 models have identical functions, but different power sources.
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TK-3 Calibration Instrument Operation Manual or Service representative if you have special target requirements. The spindle micrometer is used to check the voltage versus distance characteristics of the probe and Proximitor. You can also use the micrometer to calibrate thrust position. The Wobble Plate generates vibration and Keyphasor reference signals.
Section 2 - Operation 2. Operation General Both the TK-3e and the TK-3g are self- contained and require only the appropriate power source connections for operation. To prevent circuit damage in the TK-3e, make sure to set the 115/230 VAC select switch to the proper position before connecting the unit to a power source.
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TK-3 Calibration Instrument Operation Manual proximity probe and the motor shaft, the probe observes a change in gap as the motor rotates the shaft and Wobble Plate. Spindle Micrometer Assembly Swing Arm Assembly Power inlet plug Voltage Selector Switch Speed Control knob Power Switch Figure 2-1: TK-3e Key Components...
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Section 2 - Operation Spindle Micrometer Assembly Swing Arm Assembly Air Inlet barb Speed Control Valve knob Figure 2-2: TK-3g Key Components...
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TK-3 Calibration Instrument Operation Manual Stop Cam 10. Side thumbscrew 11. Wobble Plate 12. Keyphasor Probe Clamp 13. Large rosette knob 14. Swing Arm Base 15. Dowel pins 16. V Probe Mount 17. Probe Clamp Tip 18. Probe Clamp thumbscrew Figure 2-3: TK-3 Top Plate Key Components...
Section 2 - Operation 10. Side thumbscrew 16. V Probe Mount 17. Probe Clamp Tip 18. Probe Clamp thumbscrew 19. Spindle Micrometer 20. Button Target 21. Spindle Micrometer Assembly base Figure 2-4: Spindle Micrometer Mount Key Components 2.1.1 Spindle Micrometer Operation The Spindle Micrometer Mount Assembly consists of a Spindle Micrometer with an attached Button Target, a Magnetic-Base...
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TK-3 Calibration Instrument Operation Manual NOTE Care should be taken to always keep the side thumbscrew of the V Probe Mount tightened in order to avoid accidental loss of the V Probe Mount during transport and use. The Spindle Micrometer Mount Assembly is equipped with a flush-mounted, shielded magnet, housed in its base.
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Section 2 - Operation Install the probe into the V Probe Mount by sliding it through until the probe face and target face are butted up flush with one another. Take care not to damage the probe tip; insertion with excessive force is not necessary.
TK-3 Calibration Instrument Operation Manual Set the probe/target alignment by adjusting the V Probe Mount such that the probe and target centerlines align (see Figure 2-7). Figure 2-7: 8mm Probe Adjusted to Centered Position 2.1.2 Swing Arm Assembly Operation The Swing Arm Assembly consists of a Swing Arm Spindle, a Swing Arm Base, and a V Probe Mount.
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Section 2 - Operation the side thumbscrew. Please refer to Figure 2-8 for operation details. Figure 2-8: 8mm Probe Fixed at Centered Position Adjust the V Probe Mount Radial position by first loosening the large rosette knob atop the Swing Arm Base and then pivoting the Swing Arm Assembly about the Swing Arm Spindle.
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TK-3 Calibration Instrument Operation Manual Figure 2-9: 8mm Probe Position Adjusted For Large Amplitude Vibration The procedure to install a proximity probe is the same as that for the Spindle Micrometer Mount assembly, except that you must set the Probe/Wobble Plate gap before tightening the Probe Clamp to fix the Probe position.
Section 2 - Operation 2.1.3 Stop Cam The Stop Cam located to the left of the Swing Arm assembly acts as a positive stop for the Swing Arm Assembly when you are adjusting the assembly to view minimum motion of the Wobble Plate.
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TK-3 Calibration Instrument Operation Manual Keyphasor Clamp thumbscrew fixes the Keyphasor probe in place. Checking Operation of the Keyphasor Input Remove the Keyphasor plug from the case. Loosen the thumbscrew on the Keyphasor Clamp (Figure 2-11), and press down on the left side to lift the Keyphasor Clamp to allow insertion of the Keyphasor probe through the unplugged hole.
Section 2 - Operation Figure 2-12: Insert the Probe Figure 2-13: Tighten the Thumbscrew Power-Up and Adjustment For both models, setting the Speed Control at midrange each time the unit is used prolongs the life of the unit while still providing a vibration reference observable by vibration monitors.
TK-3 Calibration Instrument Operation Manual 2.2.1 TK-3e CAUTION Rotating machinery present. Injury can result from flying debris or contact with moving parts. Always wear safety glasses and keep clear of the wobble plate when operating either the TK-3e or TK-3g. The TK-3e motor drive is electrically powered.
Section 2 - Operation NOTE The TK-3e is equipped with a magnetic-type circuit breaker ON/OFF switch, rated at 2.5A. If conditions trigger the circuit breaking mechanism within the switch, immediately unplug the unit from the external power source to reset the circuit breaker. Inspect the power cord and source for damage.
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TK-3 Calibration Instrument Operation Manual 40psig to 90psig. The Speed Control Valve knob varies the rotational speed of the Wobble Plate. To power the TK-3g up, first turn the Speed Control fully clockwise before attaching the air hose to the intake fitting (see Figure 2-15). After the air hose is attached, turn the Speed Control counterclockwise to obtain the desired operating speed.
Section 2 - Operation Observed Material Substitution If a material other than 4140 steel is to be observed by the probe, then the Wobble Plate must be changed and the spindle micrometer target must be altered to ensure proper testing and calibration. To alter the spindle micrometer target material, fabricate a substitute target disc from the same material (e.g., brass, copper,...
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TK-3 Calibration Instrument Operation Manual Figure 2-16: Remove the Keyphasor Plug Figure 2-17: Wobble Plate Secured by Two Setscrews 23. Set Screws 24. Drive Motor 11. Wobble Plate Loosen the side-mounted thumbscrew of the V Probe Mount attached to the Swing Arm Assembly.
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Section 2 - Operation Figure 2-18: Remove the V Probe Mount Rotate the Wobble Plate until the Keyphasor notch in the side of the Wobble Plate is aligned with the Keyphasor Access Hole (see Figure 2-19). The first setscrew will now be aligned with the Keyphasor Access Hole, as well (see Figure 2-20).
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TK-3 Calibration Instrument Operation Manual 23. Set Screw Figure 2-20: First Setscrew Aligned with the Opening Use a 3/32-inch Allen wrench to loosen the setscrew (see Figure 2-21). To view the setscrew, you may need to position the instrument case so that surrounding light can shine through the opening.
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Section 2 - Operation screwdriver through the same access hole below the hub of the Wobble Plate. Rotate the Wobble Plate in small increments, while carefully exerting downward pressure on the screwdriver handle to lift the Wobble Plate off. To provide vertical clearance between the Swing Arm Base dowel pins and the Wobble plate during Wobble Plate removal, you may need to loosen the...
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TK-3 Calibration Instrument Operation Manual When you have properly positioned the substitute Wobble Plate tighten the first setscrew. Then rotate the Wobble Plate 1/4 turn clockwise and tighten the other setscrew. Reinstall the Keyphasor Hole plug in the 7/8” Keyphasor Access Hole. Reinstall the V Probe Mount onto the Swing Arm Assembly.
Section 3 - Maintenance 3. Maintenance General Maintenance Periodic cleaning of the case and components is necessary for the continued operation and reliability of the unit. Clean the case inner and outer surfaces with a water-damp cloth. To minimize corrosion, clean all exposed metal parts with WD-40 or lightweight oil.
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TK-3 Calibration Instrument Operation Manual See Table 3-1 for test equipment requirements. Connect the probe and test equipment to the Proximitor sensor as shown Table 3-1: Recommended Maintenance Equipment Minimum Suggested Item Specification Equipment 1 MΩ input impedance ac volts to 100 Vac Digital multimeter, HP 3465A/B dc volts to 100 Vdc...
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Section 3 - Maintenance adjusted using a feeler gauge or by observing the Proximitor DC output on a digital multimeter, and referring to the appropriate calibration graph. Do not tighten the probe clamp more than necessary to hold the probe. Position the swing arm to minimize peak- to-peak vibration as indicated on the oscilloscope display.
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TK-3 Calibration Instrument Operation Manual the Swing Arm Assembly in this position. Pivot the Stop Cam arm counterclockwise until the cam feature makes contact with the side of the Swing Arm assembly. Gently re-tighten the cap screw within the Stop Cam. Excessive torque is not required as it may damage the plastic washer under the head of the cap screw.
Section 4 - Calibration 4. Calibration General This section includes the procedures to help the user check thrust and radial vibration channel operation. In addition, this section contains a procedure for determining the Keyphasor probe gap and checking the transducer system operation. Transducer System Check The Proximitor unit must be connected to the probe and its associated extension cable.
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TK-3 Calibration Instrument Operation Manual With input power disconnected, connect the power supply minus (-) output to the Proximitor –18Vdc or –24Vdc input, whichever is applicable. Connect the power supply common terminal to the Proximitor COM connector. Connect the DMM between the Proximitor SIG and COM connectors.
Section 4 - Calibration APPLICATION ADVISORY The first 10 or 20 mils (0.25 mm or 0.50 mm) of the curve cannot be used due to probe nonlinearity. A sharp change in the slope of the curve will occur at a probe-to-target gap of about 10 to 20 mils (0.25 mm to 0.50 mm).
TK-3 Calibration Instrument Operation Manual simulated vibration waveform and an oscilloscope or DMM to determine the waveform amplitude. The accuracy of this method is approximately 1 to 2%. Using the TK-3 Wobble Plate, a transducer system to provide a vibration waveform for checking monitor calibration, and an oscilloscope to determine the waveform amplitude is an alternate method.
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Section 4 - Calibration Insert the probe into the V Probe Mount. Adjust the probe gap using one of following three ways: • using a feeler gauge (mechanically), • observing the dc voltage on a DMM (electrically), or • using the gap switch on the monitor to be checked.
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TK-3 Calibration Instrument Operation Manual check the appropriate monitor manual for the troubleshooting procedure. Set the ON/OFF switch to OFF, the power input controls to the proper voltage (115 Vac or 230 Vac), and connect the power source. Set the Wobble Plate Speed Control to the lowest position, switch the power on, and bring speed to midrange or a value within the passband of the...
Section 4 - Calibration reasonable agreement, refer to the appropriate monitor manual for proper adjustment. Thrust Monitor Check The spindle micrometer generates a precise gap reference. Using the same setup for checking the transducer operation (see Transducer System Check in Section 4.2) you may use the spindle micrometer to simulate the appropriate “zero”...
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TK-3 Calibration Instrument Operation Manual Energize the Wobble Plate and adjust to any desired speed, preferably midrange (refer to Section 3.2, Wobble Plate). With power applied to the Proximitor sensor, use the oscilloscope to manually adjust the probe toward and away from the wobble plate edge to a point at which the optimum voltage excursion (spike) is displayed.
Section 5 - Specifications 5. Specifications Power 5.1.1 TK-3e APPLICATION ALERT 2-Position Voltage Input Selector Switch. Damage to the unit can occur if the Voltage Selector Switch is not set to the appropriate voltage input position. 95 to 125 Vac, 50 to 60 Hz, 1 A max. 190 to 250 Vac, 50 to 60 Hz, 1 A max.
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TK-3 Calibration Instrument Operation Manual Length: 299 mm (11.8 inches) Controls Wobble Plate Speed Vibration Amplitude ON/OFF (TK-3e) Target Material 4140 steel Wobble Plate 5.6.1 TK-3e Rotational Speed 5,000 rpm ± 1,000 rpm over the specified line voltage range. 5.6.2 TK-3g Rotational Speed 5,000 rpm ±...
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Section 5 - Specifications Environmental 5.8.1 Temperature Range Operational Min Temperature: 0°C (32°F) Max Temperature: 54°C (130°F) NOTE: Temporary operation below minimum temperature is acceptable. 5.8.2 Exposure Dust and Water Resistant (case lid closed)
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