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Summary of Contents for SPM A30
- Page 1 Instruction Manual Analyzer A30 / Tester T30 SPM Instrument AB • Box 504 • SE-645 25 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.com...
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Page 3: Table Of Contents
Technical data ..........50 The LUB number – A30 ......27 SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 4: Measuring Techniques
Both T30 and A30 are available in three different versions: Basic, Logger and Expert. As before, the difference between T30 and A30 lies in the application of the Shock pulse Method for bearing condition monitoring: all T instrument versions use the dBm/dBc technique, and all A instrument versions use the LR/HR technique. -
Page 5: Functions, Manual And Data Logger Mode
General instrument settings such as time and display brightness. Selection of communication mode. Battery test. Instrument version. Shock pulse measurement. This is the function where T30 and A30 differ. T30 uses the dBm/dBc technique, A30 the LR/HR technique. Vibration measurement. The Expert versions have in addition to vibration severity (according to ISO), spectrum recording. -
Page 6: Instrument Layout, Screen And Keys
The green-yellow-red marking beside the display is the condition scale. After a normalized SPM or a VIB measurement with machine class input, an arrow points at one of the colours. PEAK is a light indicator active during SPM measurements. The round window opposite to the right is a light sensor controlling the LED backlight of the display. -
Page 7: Instrument Layout, Inputs
A BNC connector receiving vibration transducer. The instruments can monitor the connected SPM transducer type, e. g. a shock pulse transducer with or without transducer matching unit TMU, and react accordingly. -
Page 8: General Setup
The menus for communication, time and date setting, and display adjustment are described separately. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 9: Batteries
Continuous read: At least 50 hours. Before long-time storage, keep in mind to remove the batteries. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 10: Eprom And Memory
In practice, measuring rounds are normally much smaller. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 11: Time And Display Light
Do not cover the sensor when measuring – if on automatic, that will switch on the backlight. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 12: Manual Measuring Mode
To leave this mode, disconnect the probe. For SPM and VIB, you have to input basic data. For this, you press the SET key and move the cursor with RIGHT/LEFT to the number you want to change. UP/ DOWN changes the number, ENT saves and allows you to start a reading with the M key. -
Page 13: Record Keeping, Measuring Intervals
Read more details in the chapters on the monitoring methods. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 14: Spm - Shock Pulse Measurement
SPM - shock pulse measurement The Shock Pulse Method for bearing condition monitoring (SPM) is described in its own chapter. This is a short and simplified summary of some important facts needed to understand the basic input data for bearing monitoring as well as the nature and use of the shock pulse transducers. -
Page 15: Spm Measuring Points
(because an ideal spot cannot be reached), make allowance for a weaker signal. If you measure with a A30, you have the COMP no. to compensate for weak signals, but must still try to find a good point. -
Page 16: Shock Pulse Transducer With Probe
Shock pulse transducer with probe All three types of shock pulse transducers are connected to the TNC connector marked SPM. The choice of transducer type depends on how the measuring point is prepared. For systematic shock pulse monitoring, SPM recommends the use of installed adapters and quick connect transducer wherever possible. -
Page 17: Transducer With Quick Connector, Terminal
Check that installed transducers and adapters are properly mounted (see the chapter on SPM installations) and in good condition. You cannot expect a useful signal by attaching the quick connect transducer to a rusty lump of metal, or from a transducer that is rolling on the floor on the other side of a partition. -
Page 18: The Difference Between T30 And A30
Analyzer A30 starts on page 23. The signal you measure consists of a train of stronger and weaker electric pulses, analog to the shock pulses emitted by the source. SPM has developed two quantifying techniques for this shock pulse pattern. -
Page 19: The Dbm/Dbc Technique: Tester T30
This, and the possibility to search for shock pulse sources with the probe transducer, is a means to verify the measuring result and its cause. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 20: Normalized And Unnormalized Readings
SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 21: Input Data - T30
UP/DOWN scrolls the number and toggles TLT on/ off. SET brings you to the next line, and ENT back to the SPM menu. When TLT test is on, the instrument will display the result of a transducer line test on the display for data input, so you can check the quality of signal transmission between transducer and instrument. -
Page 22: Spm Measurement - T30
- good ( 20) SPM measurement [Tester T30] Back in the SPM menu, you can connect the transducer to the measuring point and press the M key to start a measurement. It takes approx. 2 - 10 seconds, during which the connected transducer type is displayed: PROBE for hand-held probe, TRA for the quick connect transducer and the standard 40000 transducer, TMU for a transducer matching unit in the transducer line. -
Page 23: Peak Indicator And Earphone - T30
Do not worry about getting this setting exactly right – you cannot fail distinguishing between a high and a low noise carpet. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 24: Different Shock Pulse Patterns
F A sudden drop in the shock pulse level is suspicious. Check your measuring equipment. If the reading is correct, you may have a slipping bearing ring. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 25: The Lr/Hr Technique: Analyzer A30
This makes LR an average value of the strong pulses, lower than the maximum, and thus reduces the dynamic range. To increase accuracy, the mean diameter of the bearing is used, the SPM TYPE no. is input to define bearing geometry, and the COMP no. to calibrate the individual measuring points. -
Page 26: Basic Data For Spm - A30
Pro, the program will give you Dm and TYPE no. As manual input for the A30, you can use the last three digits of the ISO number, which will produce Dm but not the TYPE no. You therefore have three alternative inputs: •... -
Page 27: Comp And Acc - A30
If it is far to the left, you can ”push it forward” by setting a COMP no. If the signal is outside of the left side of evaluation frame, the A30 will display the error code E3 = signal too low. The COMP no. is added to the measuring result before it is evaluated. -
Page 28: Lr/Hr Values And Code - A30
CODE C is displayed when the A30 detects an increased shock pulse level with a large delta value. This points to beginning surface damage. -
Page 29: The Lub Number - A30
SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 30: The Cond Number And Error Codes
COND No. > 40 Severe damage When the measured signal is not within the evaluation frame, the A30 will display error codes. E2 is displayed when HR > LR, which normally means a high, even disturbance signal such as pump cavitation or a screaming steam box. E3 = signal too low can often be remedied by setting a COMP no. -
Page 31: Input Of Basic Data -A30
The SET key takes you to the display of the basic data for the bearing (B). For an evaluated reading of bearing condition with an A30, you input the NORM and TYPE nos. of the bearing. The TYPE no. you can get from the figure on page 23. -
Page 32: Spm Measurement - A30
COMP no. SPM measurement [Analyzer A30] Back in the SPM menu, you can connect the transducer to the measuring point and press the M key to start a measurement. It takes approx. 10 seconds per accumulation, during which time the connected transducer type is displayed:... -
Page 33: Earphone And Peak Indicator - A30
22. It does not matter that, with the A30, you are not using the normalized dBn scale. The important information is the distance between peaks and noise carpet (start of the continuous tone as you step downwards), plus the rhythm of the peaks (random or regular). -
Page 34: Measuring Points And Transducers For Vib
• with the M8 (UNC 1/4) mounting screw. The firmer the contact with the machine, the better the measuring result. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 35: Vibration Severity Measurement
On the instrument, the ISO values for good and acceptable are shown as green. Just tolerable is yellow, unacceptable is red. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 36: Recording A Vibration Spectrum - Expert
Pro. There you can use the EVAM functions for graphical spec- trum displays and machine fault identification. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 37: Setting Vibration Transducer Sensitivity
On the VIB display, press SET until “Transducer sensitivity” appears. Adjust the sensitivity to the value on the card, using UP/DOWN. Leave with ENT. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 38: Measuring Speed
Wait until the display shows <10 rpm, then release the M key. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 39: Measuring Temperature
Press SET. then use UP / DOWN to adjust the temperature. Finish with ENT. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 40: Data Logging, General Procedure
FER or PLANNING, or under RECORDING, all under MAINTENANCE. The data logger is switched on and set to COMMUNICATION. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 41: Measuring Rounds In Condmaster
HR and dBm/dBc, because both cannot be handled by the same instrument. You must be careful with SPM measuring points where the rpm i a) measured or b) pre-set prior to measuring shock pulses. Points with measured speed are put into separate rounds. -
Page 42: Data Logging - Measuring Sequence
A point/technique with a new measuring result is marked with X. You can repeat measurements. The last result will be saved. For SPM measuring points, you can take twice 5 readings and save one result from each batch, see page 43. -
Page 43: Displays In Data Logging Mode
Displays in data logging mode [Logger, Expert] The figure shows the various displays while measuring with a data logger. The example shows an SPM measurement with the T30, but the principle is the same for both instruments and all techniques. For details, see the descriptions for manual measuring mode. -
Page 44: Measuring Function
• damage to the environment of the machine and to the machine itself. • abnormal measuring conditions and damaged measuring equipment. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 45: Multiple Spm Results
ENT Multiple SPM results [Logger, Expert] For each SPM measuring point, you have the option of taking two series of 5 readings each, and save one result from each series. When you reach the SPM display, you would normally press M, measure once and go on with ENT. -
Page 46: Alternative Measurements, Setup
Together with the Comment functions, you can thus, with little effort, produce valuable statistics and reports. Use you imagination! SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 47: Entering Alternative Measurements
Like with other measurements, you can press the SET key to come to the comments display and record a comment. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 48: Check Points
Lights OK? Water leaking? Emergency exit blocked? Use your imagination, and the instrument as your note book. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... -
Page 49: Long-Time Recording, Program Setup
[Logger, Expert] Long-time recording implies that you can measure continuously on one measur- ing point, simultaneously using one, two, or three transducers: SPM + VIB + RPM, or SPM + VIB + TEMP. Speed and temperature cannot be measured together because the probes use the same input connector. -
Page 50: Long-Time Recording, Measurement
If the batteries should become ex- hausted, the memory back-up will preserve you measuring results. SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. -
Page 51: Part Numbers, Accessories
Battery 1.5 V, alcaline, AA-cell TRV-22 Vibration transducer, M8 SPM Instrument AB • Box 504 • SE-645 25 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.com... -
Page 52: Technical Data
Frequency range: 3 – 1000 Hz SPM Instrument AB • Box 4 • S-645 21 Strängnäs • Sweden Technical data are subject to change without notice. Tel +46 152 225 00 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se... - Page 53 Windows and Windows 95 are registered trademarks of Microsoft Corporation, USA. Warranty and Responsibility The warranty for the instrument is applicable as soon as SPM Instrument AB has received the signed warranty form from the possessor of the instrument. SPM Instrument AB reserves the right to make alterations of the contents in this Instruc- tion Manual at any time without notice.
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