Summary of Contents for Baltech VP-3450
- Page 1 OPERATION MANUAL BALTECH VP-3450 device for bearing diagnostics using shock pulse method 2016...
- Page 2 Device for bearing diagnostics using shock pulse method Operation manual Before you start using the device for bearing diagnostics using shock pulse method read this operation manual carefully. Baltech doesn’t bear responsibility for any damages occurred due to nonobservance of the instructions given in this operation manual.
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Page 3: Table Of Contents
4.2. Preparation to operation ..................... 14 4.2.1. Unpacking and installation ....................14 4.2.2. Operation modes ......................15 4.3. Use of the tester BALTECH VP-3450 ................. 20 4.3.1. Establishment of equipment monitoring system .............. 20 4.3.2. Measurement procedure ....................21 4.3.3. Information analysis ......................24 5. -
Page 4: Table Of Figures
Device for bearing diagnostics using shock pulse method Operation manual Table of figures Figure 3-1. Appearance………………………………………………………………………….....7 Figure 3-2. Bearing wear development………………………………………………………………..9 Figure 3-3. Shock pulse dB values……………………………………………………………………..10 Figure 3-4. Control elements…………………………………………………………………………….11 Figure 4-1. Direct change of the initial dBi value…………………………………………………16 Figure 4-2. -
Page 5: Introduction
BALTECH VP-3450. Note Baltech wants our customers to be satisfied with the device for bearing diagnostics using shock pulse method BALTECH VP-3450. Therefore if you have any questions do not hesitate to address to us at any time. -
Page 6: Safety Requirements
Device for bearing diagnostics using shock pulse method Operation manual 2. Safety requirements When working with the tester strictly observe the safety requirements. Caution! Nonobservance of the safety requirements may result in serious injury or failure of the device. Strictly observe the following requirements: ... -
Page 7: Technical Description
Operation manual 3. Technical description 3.1. Application The device for bearing diagnostics using shock pulse method BALTECH VP- 3450 (Figure 3-1) is intended to perform monitoring of rolling bearings of rotatory machinery, check of equipment mechanical condition for mechanical damages. -
Page 8: Technical Characteristics
Device for bearing diagnostics using shock pulse method Operation manual 3.2. Technical characteristics Table 3-1 Characteristics Value Measurement range, dBsv -9 ~ 99 Resolution, dBsv Maximum absolute error, ≤dBsv ±2 Supply voltage , V Dimensions, mm 255х105х60 Weight, kg 3.3. Delivery set Table 3-2 Name Q-ty... -
Page 9: Design And Operation
Device for bearing diagnostics using shock pulse method Operation manual 3.4. Design and operation 3.4.1. Operation principles Shock pulse method Installation, operation, repair and maintenance are main factors that influence bearing life. Periodic bearing monitoring during its operation is the best way to prevent damage and costly repair. -
Page 10: Figure 3-3. Shock Pulse Db Values
Device for bearing diagnostics using shock pulse method Operation manual The shock pulse method uses several decibel values (Figure 3-3): Figure 3-3. Shock pulse dB values. dBsv (dB-shock value) –the absolute shock pulse dB value. dBi (dB-initial)- the initial dB value. This is an average value obtained from a variety of tests and measurements conducted on new bearings, and correction of different bearing operation and their rotation speed according to the dBn standard. -
Page 11: Figure 3-4. Control Elements
Operation manual Tester description The BALTECH VP-3450 tester consists of the electronic unit and sensor. The sensor mounted in the handle is connected to the device via the cable. The tester has a housing made of ABS plastic and consists of a single-chip microcontroller, LCD and film keyboard on the front panel. - Page 12 Device for bearing diagnostics using shock pulse method Operation manual 4. Measuring key (M) 5. Navigation key (Right) 6. Set key (SET) 7. Navigation key (UP) 8. Navigation key (Down) 9. Output for shock pulse sensor (SPM) 10. Output for headphones (EAR) 1.
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Page 13: Marking, Preservation And Packing
Device for bearing diagnostics using shock pulse method Operation manual 6. Set key The SET key is used for data input and headphone volume adjustment. 7/8. Navigation key (Up) and navigation key (Down) These keys are used for adjustment of volume and measurement range. 3.5. -
Page 14: Operation
Device for bearing diagnostics using shock pulse method Operation manual 4. Operation 4.1. Operation conditions: Ambient conditions: Ambient temperature: 0…+50 ºС Relative humidity at 25 °С: ≤80% The tester is powered from the alkali batteries 1.5 V, type LR6 (AA). Nickel- metal-hydride or nickel-cadmium batteries can be also used. -
Page 15: Operation Modes
4.2.2. Operation modes GENERAL FUNCTIONS Tester on/off: Press any function key to switch on the BALTECH VP-3450 tester. The tester shuts down automatically in 30 seconds after the last pressing of any key. Sensor and headphone connection A screw BNC connector (9) is used to connect the shock pulse sensor, the output (10) is used to connect the headphones;... -
Page 16: Figure 4-1. Direct Change Of The Initial Dbi Value
Device for bearing diagnostics using shock pulse method Operation manual Figure 4-1. Direct change of the initial dBi value. Press the UP key to increase the dBi value and the DOWN key to decrease the dBi value; Press the M key to exit the setting mode. 2) Setting rpm and diameter ... -
Page 17: Figure 4-3. Setting Rpm And Diameter. Step 2
When dBi is lower than -9 or higher than 40, the display shows “--” (two hyphens). Shock pulse measurement: Switch on the tester BALTECH VP-3450, the last reading and dBi value will be displayed. If necessary, change the dBi value Move the sensor to a measurement point;... - Page 18 Device for bearing diagnostics using shock pulse method Operation manual Within a few seconds a new maximum value dBm and carpet value dBc will be displayed on the screen; these values will be displayed on the screen until the M key is pressed to perform another measurement. If the dBi value is set, the tester measures the standard values and the result is indicated on the screen by the arrow.
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Page 19: Figure 4-5. Measurement Range Set
When the range is close to dBc, the sound in the headphones becomes continuous. If you want to exit the headphone mode disconnect the cable from the tester BALTECH VP-3450. The measurement range is in dBsv. Section 4 Operation... -
Page 20: Use Of The Tester Baltech Vp-3450
Figure 4-6. Headphone mode. 4.3. Use of the tester BALTECH VP-3450 4.3.1. Establishment of equipment monitoring system In order to obtain accurate and reliable readings using the tester BALTECH VP-3450 two main requirements should be met: • Choose a measurement point according to SPM rules;... -
Page 21: Measurement Procedure
4.3.2. Measurement procedure Application The measurement range of BALTECH VP-3450 allows measuring bearings with the maximum rotation frequency up to 19,999 rpm and maximum dBi 40. The minimum dBi value is -9dBi; the real limit is 0 dBi, as in case of low values for low-speed bearings it is almost not possible to obtain useful information on the bearing condition. -
Page 22: Figure 4-7. Measurement Point Selection
Device for bearing diagnostics using shock pulse method Operation manual Measurement point selection To obtain a correct measurement signal, a measurement point should be selected according to the following rules (Figure 4-7): Distance from the bearing to the measurement point should be direct and as low as possible;... -
Page 23: Figure 4-8. Follow-Up Form
Device for bearing diagnostics using shock pulse method Operation manual Figure 4-8. Follow-up form. Section 4 Operation... -
Page 24: Information Analysis
Device for bearing diagnostics using shock pulse method Operation manual The follow-up form contains the following information: 1. Equipment description, name, number, position; 2. Display of measurement points, their position and number; 3. Notes; 4. Measurement point number; 5. Initial dBi value; 6. -
Page 25: Figure 4-9. Bearing Good Condition
Device for bearing diagnostics using shock pulse method Operation manual To make sure that the measured information is correct: Check the defined rpm and diameter, dBi settings. If the pulse indicator flashes, continue to measure dBm and dBc values to obtain the correct data. -
Page 26: Figure 4-10. Bearing Damage At An Early Stage Of Development
Device for bearing diagnostics using shock pulse method Operation manual Figure 4-10. Bearing damage at an early stage of development. с) Bearing with severe damage (Figure 4-11). If the dBm value is higher than 35dB (red area), dBc and dBm values differ considerably, the dBm value indicates the bearing damage severity level: •35~40 dBn: slight damage;... -
Page 27: Figure 4-12. Periodic Shock Pulses
Device for bearing diagnostics using shock pulse method Operation manual Another reason can be strong lubrication contamination. Check the oil condition with the mini – laboratory BALTECH OA-5000. If after the lubrication change the dBm value decreases a little, it means that the bearing is damaged. -
Page 28: Figure 4-14. Improper Lubrication Mode
Device for bearing diagnostics using shock pulse method Operation manual f) Improper lubrication (Figure 4-14). High dBc value indicates bearing operation without lubrication, dBm and dBc values differ slightly, possible reasons are: Insufficient lubrication (lubrication of poor quality, use of waste, resin or condensated oil);... -
Page 29: Figure 4-15. Cavitation Or Similar Problems
Device for bearing diagnostics using shock pulse method Operation manual Figure 4-15. Cavitation or similar problems. Irregular measurement results (Figure 4-16). If low values appear suddenly or if the values disappear, the reasons are: Improper bearing operation, the sensor is attached to a measurement object not tightly or damaged. -
Page 30: Figure 4-17. Inconsistent Shock Pulse Values Of Damaged Bearings
Device for bearing diagnostics using shock pulse method Operation manual i) Inconsistent shock pulse values of damaged bearings (Figure. 4-17). Damaged heavy duty needle roller bearings generate a dramatic increase of shock pulses. With time the damaged surface can be smoothed which will result in reduction of the shock pulse values. -
Page 31: Maintenance
Device for bearing diagnostics using shock pulse method Operation manual 5. Maintenance 5.1. Tester cleaning The tester should be cleaned with a cotton cloth moistened with a mild soap solution and wiped dry. 5.2. Battery replacement The tester is powered from alkaline battery 1.5 V (LR6) or from rechargeable batteries. -
Page 32: Storage And Transportation
Device for bearing diagnostics using shock pulse method Operation manual 6. Storage and transportation During transportation and storage the tester should be packed in the transportation case. It is recommended to remove the batteries before long- term storage. Before long-term storage the batteries should be removed. Section 6 Storage and transportation... -
Page 33: Warranty
Device for bearing diagnostics using shock pulse method Operation manual 7. Warranty The manufacturer guarantees the tester BALTECH VP-3450 to the technical characteristics in case of the observance of the operation, maintenance, storage and transportation conditions, specified in the operation manual.