SKF Microlog GX Series User Manual
  1. Manuals
  2. Brands
  3. SKF Manuals
  4. Measuring Instruments
  5. Microlog GX Series
  6. User manual

SKF Microlog GX Series User Manual

Data collector/analyzer supports the gx series microlog system cmxa 75
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Read this manual before using this product. Failure to follow the instructions
and safety precautions in this manual can result in serious injury, damage to the
product, or incorrect readings. Keep this manual in a safe location for future
reference.
Copyright  2016 by SKF USA Inc.
All rights reserved.
5271 Viewridge Court, San Diego, CA 92123-1841 USA
Telephone: (858) 496-3400, Fax: (858) 496-3531
Customer Service: 1-800-523-7514
SKF Microlog
Supports the GX Series Microlog System CMXA 75
User Manual Part No. 32298500-EN
®
GX Series
Data Collector/Analyzer
Firmware Version 4.05
Revision E
User Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Microlog GX Series and is the answer not in the manual?

Questions and answers

Related Manuals for SKF Microlog GX Series

Summary of Contents for SKF Microlog GX Series

  • Page 1 Keep this manual in a safe location for future reference. Copyright  2016 by SKF USA Inc. All rights reserved. 5271 Viewridge Court, San Diego, CA 92123-1841 USA...
  • Page 2 SKF reserves the right to alter any part of this publication without prior notice.
  • Page 3 SKF shall not be liable and accessories. for any claim for which notice is received by SKF more than thirty (30) days following the TWO-YEAR WARRANTY expiration of the applicable warranty period for the Product.
  • Page 4 SKF, in FIVE-YEAR WARRANTY its sole discretion, will determine if the Products warranted for five (5) years by SKF are Buyer must return the product covered as follows: special seismic sensors. under this warranty to SKF.
  • Page 5 Lifetime Warranty are set forth in hereunder and if requested or authorized in paragraphs (A) and (B), and SKF’s liability writing by SKF, Buyer shall forward to SKF any under this Limited Lifetime Warranty Product claimed by Buyer as being defective.
  • Page 6 The exclusive remedies provided in this limited warranty shall not be deemed to have failed of their essential purpose so long as SKF is willing and able to perform to the extent and in the manner prescribed in this limited warranty.

  • Page 7: Table Of Contents

    Table of Contents Introduction to the SKF GX Series Microlog Safety Messages ............1-1 About This Manual ............. 1-2 What is the GX Series Microlog System? ....1-4 The GX Series Microlog Main Menu Screen ..1-9 Module Management..........1-10 GX Series Microlog Buttons and Keypad .....

  • Page 8: Table Of Contents

    Overview ..............8-1 Additional Background Information ......8-1 How to Set Up an FRF Measurement ....8-2 Recording the Measurement ........8-7 Field Calibration ............8-12 Saving FRF Data ............8-13 TOC - 2 SKF Microlog - GX Series User Manual...

  • Page 9: Table Of Contents

    How to Set Up a Cross Channel Phase Measurements ............A-22 Multi Channel Cursor, Display Expand, and Full Scale Adjustments ........A-24 How to Review Non ROUTE Measurement Data ................. A-25 SKF Microlog - GX Series TOC - 3 User Manual...
  • Page 10 How to Use the Strobe Light with the GX ....C-2 Safety Instructions Instrument Installation Drawing (090-22600-1 Rev B) ........... D-1 Safety Instructions (090-22861-1 Rev C) .... D-4 Glossary of Terms Index TOC - 4 SKF Microlog - GX Series User Manual...

  • Page 11: Safety Messages

    Device Safety Use only accessories that are recommended by the manufacturer. Do not attempt to open the device. Device service must be performed only by qualified SKF repair personnel. Use only accessories recommended or provided by SKF. Energized equipment Never work on energized equipment unless authorized by a responsible authority.

  • Page 12: About This Manual

    About This Manual This manual introduces you to SKF’s GX-R, -M, -F, and -A series Microlog models. It offers complete and detailed reference to GX-R, -M, -F, and -A model setup screens, data collection displays, and data review options.

  • Page 13: Overview

    Appendix A, Non ROUTE - Describes how to set up, perform, and review measurements not downloaded from SKF @ptitude Analyst host software. SKF Microlog - GX Series 1 - 3...

  • Page 14: What Is The Gx Series Microlog System?

    What is the GX Series Microlog System? Appendix B, Field Upgrades and Accessories – Describes available Microlog module upgrades and provides a link to the SKF Microlog Accessories Catalog. Appendix C, Using the Headphones and Strobe Light – Describes how to connect the headphones and strobe light to the GX.
  • Page 15 Green only – Data collection is complete, measurement results are not in alarm. Red and green - Data collection is complete, measurement results are in alarm. Blue - A blue LED displays when the Microlog establishes communication with the SKF @ptitude Analyst host software.
  • Page 16 • Idler Sound Monitor All of the above modules are preinstalled at the SKF factory on all Microlog models. However, not all modules are pre-licensed on all Microlog models. A module must be licensed for it to be active (i.e., unlicensed modules are inactive, and display dimmed module icons).
  • Page 17 GX-A – The Base Model Microlog Whereas the previously described GX-R, -M, and –F Microlog models all arrive with the ROUTE module pre-licensed and so communicate with SKF @ptitude Analyst to provide ROUTE based data collection, the GX-A model has only the Setup modules pre-licensed, and is therefore described as the “base model”...
  • Page 18 SKF's Analysis and Reporting Manager Software Data from Analyzer modules (e.g., Run-up / Coast Down, Data Recorder, etc.) is typically stored and viewed on the GX-Series Microlog. In addition, SKF’s Analysis and Reporting Manager application (ARM) provides more powerful analysis features for analyzing collected vibration data on a host computer.

  • Page 19: The Gx Series Microlog Main Menu Screen

    LCD screen (identification, description, engineering units, warning alarms, and current value). When you first turn on the GX Series Microlog, the SKF title screen initially displays, showing your unit’s installed modules and firmware version number. After a few seconds the GX Series Microlog automatically displays its main menu screen showing all of the modules;...

  • Page 20: Module Management

    Introduction to the SKF GX Series Microlog Module Management Module Management As previously described, the Microlog is always shipped with all available modules preinstalled, whether purchased or not. However, modules that were not purchased are inactive (dimmed module icons) and require a license key entry to activate before use.
  • Page 21 Introduction to the SKF GX Series Microlog Module Management Figure 1 - 4. The Module Manager Screen. • Use the up / down arrow keys to highlight the module whose icon you wish to hide or show and press the second function button to either Hide or Show its icon.

  • Page 22: Gx Series Microlog Buttons And Keypad

    If you purchase an additional module, you will receive a license key that is used to activate the pre-installed module on the Microlog. To purchase a module license key, contact your local SKF office and provide your Microlog’s serial number and unit ID. The serial number is located on the asset label on the rear of the unit.

  • Page 23: How To Use The Buttons And Keypad

    Introduction to the SKF GX Series Microlog How to Use the Buttons and Keypad How to Use the Buttons and Keypad The graphic below locates and identifies important Microlog buttons and keys. Figure 1 - 5. GX Series Microlog Buttons and Keys.

  • Page 24: Power Button

    • Press the red power button to turn the Microlog on (e.g., initial power on), the SKF title screen initially displays, showing your unit’s firmware version number. After a few seconds, the Microlog automatically displays its Home screen showing the available operating modes.
  • Page 25 Introduction to the SKF GX Series Microlog How to Use the Buttons and Keypad Figure 1 - 6. The Main Menu Screen. Setup Screens – In a setup screen, use the up/down arrow buttons to highlight the field whose setting you wish to change. With the desired field highlighted, use the right/left arrow buttons to open/close the field, displaying its available settings.
  • Page 26 Introduction to the SKF GX Series Microlog How to Use the Buttons and Keypad Hierarchy List Screens – On the Microlog, you can display one ROUTE hierarchy at a time. Figure 1 - 8. A Hierarchy List Screen. To select a ROUTE: •...
  • Page 27 Introduction to the SKF GX Series Microlog How to Use the Buttons and Keypad Figure 1 - 9. A Data Display Screen. The Alpha/Numeric Keypad Use the alpha/numeric keypad to input both numbers and letters on the Microlog. To input numbers, simply press the specific number key(s), and/or the decimal key.
  • Page 28 Introduction to the SKF GX Series Microlog How to Use the Buttons and Keypad Saving Microlog Screens Using the Keypad The Microlog enables you to save display screens as graphic files on an SD card, for printing or use on a host computer.

  • Page 29: Battery Operations

    Introduction to the SKF GX Series Microlog Battery Operations Battery Operations Power Adapter/Battery Charger The Microlog's Power Adapter/Battery Charger (CMAC 5090) converts AC power to DC power required by the GX Series Microlog. The Power Adapter/Battery Charger kit includes a USB/Power Splitter Cable (CMAC 5095) that provides connections between the Microlog, the Power Adapter/Battery Charger, and an external device’s USB...
  • Page 30 Introduction to the SKF GX Series Microlog Battery Operations Critical – Very limited battery life remaining (less than 45-60 minutes). Charge the battery immediately, it is not recommended to continue work when the battery status is Critical. Charging – Indicates the battery is charging.

  • Page 31: Battery Maintenance

    If you are unable to dispose the battery locally, contact an SKF Certified Repair depot to request a Return Authorization (RA) number to return the battery to SKF for recycling. You may obtain an RA number from the SKF website at www.skf.com/cm.

  • Page 32: Microlog System Connections

    On the Microlog, the current screen automatically displays a communication dialog when the communication link is established. • Proceed with data transfer operations using SKF @ptitude Analyst software Transfer menu options.  The communication dialog remains open until the host-computer...
  • Page 33 Introduction to the SKF GX Series Microlog Microlog System Connections CH1, CH2, USB Device/Power/Trigger, and USB Host Connectors Sensor input signals are connected through the CHannel 1 and CHannel 2 Fischer connectors and the USB Host/CH 4 connector at the top of the Microlog.
  • Page 34 Introduction to the SKF GX Series Microlog Microlog System Connections  If the instrument is configured to take ICP measurements and no ICP sensor is attached, and error message appears on the screen. In the event that the Enable ICP setting has not been configured in @ptitude Analyst (for example, if a ROUTE was downloaded from an older version of Machine Analyst that did not support this setting), you can set the Route ICP setting to Never.
  • Page 35 Windows driver files onto the host PC. To install the driver files: • Run the SKF USB Driver Installer v#.##.###.msi installer from the Product CD’s USB Driver folder to copy the driver files to the PC in a known location. •...
  • Page 36 Introduction to the SKF GX Series Microlog Microlog System Connections Figure 1 – 13. Status Area. • On Win XP, you will be prompted by a popup. Just select ‘Next’ to complete the driver installation. Figure 1 – 14. Found New Hardware Wizard.

  • Page 37: Sd Memory Card Operation

    Introduction to the SKF GX Series Microlog SD Memory Card Operation Figure 1 – 15. Hardware Installation. • Microsoft ActiveSync or Mobile Device Centre launches and asks to Set Up a Partnership. Select No and click Next. ActiveSync displays its Connected dialog.

  • Page 38: How To Perform A Reset On Your Microlog

    With the Microlog ON, simultaneously hold down the 2, 7, 8, and 9 keys on the Microlog keypad for approximately 1 second. • The Microlog application reboots and the LCD screen loads the SKF title screen, then the main screen. To hard reset your Microlog: •...

  • Page 39: Strap Attachment

    Introduction to the SKF GX Series Microlog Strap Attachment Strap Attachment Figure 1 - 16. Strap Attachment Example. GX Series Microlog Specifications WARNING! Refer to Appendix D of this manual for important restrictions when using the CMXA 75-SL-Z2 Microlog in a Zone 2 restricted area.
  • Page 40 Introduction to the SKF GX Series Microlog GX Series Microlog Specifications Preprocessing • Enveloper (demodulator): With four selectable input filters for enhanced bearing and gear mesh fault detection • Filter selection: – 5 Hz to 100 Hz – 50 Hz to 1 kHz –...
  • Page 41 Introduction to the SKF GX Series Microlog GX Series Microlog Specifications • Multi-point automation: Up to 12 measurements can be listed for one button push automated data collection at each measurement location Data displays • Single and dual channel spectrum, single and dual channel time, phase table, process, orbit, cross channel phase •...
  • Page 42 • USB communication Host software The SKF Microlog GX series communicates with SKF @ptitude Analyst software for ROUTE measurement data collection and analysis, and also to SKF’s Analysis and Reporting Manager software for analysis of Non ROUTE data. 1 - 32...

  • Page 43: System Settings

    Press an Enter button. The Setup screen displays. Figure 2 - 1. The Setup Screen. “Shift key active” indicator. Indicates to use the shift key (zero / up arrow) to view additional function buttons. SKF Microlog - GX Series 2 - 1 User Manual...
  • Page 44 Input Range – Autorange, Maximum, or Sensor Units. Specify whether to use autoranging, or to use a fixed range set by the Microlog, or to use a fixed range set by the sensor setting. 2 - 2 SKF Microlog - GX Series User Manual...
  • Page 45 Trigger = User without any trigger signal. to be taken. No option to measure speed. Trigger level needs to be manually set by user. Speed value will be shown in RPM SKF Microlog - GX Series 2 - 3 User Manual...
  • Page 46 Configuration screen). Reference the following Global Measurement Settings section for details. Ext trig slope - + or -. Set the trigger edge, either +ve for a rising edge, or –ve for a falling edge. 2 - 4 SKF Microlog - GX Series User Manual...
  • Page 47 Route Font – Big or Small. Small - the ROUTE hierarchy is displayed in a smaller font. Big - the ROUTE hierarchy is displayed in a larger font. SKF Microlog - GX Series 2 - 5 User Manual...
  • Page 48 After specifying changes to Setup screen settings, press the Apply function button • to store your new settings in the GX Series Microlog. The main screen displays. 2 - 6 SKF Microlog - GX Series User Manual...

  • Page 49: Global Measurement Settings

    Apply – Press the Apply function button to save Instrument Configuration screen settings and return to the previous screen. The following global data collection settings are determined from the Instrument Configuration screen: SKF Microlog - GX Series 2 - 7 User Manual...
  • Page 50 The specified delay applies only to the first ICP measurement after turning ICP on, (e.g., the first measurement at the start of a ROUTE or a 2 - 8 SKF Microlog - GX Series User Manual...
  • Page 51 Trigger Level field. Trigger Level – Data entry field for manual trigger level input, or displays resulting trigger level when the trigger level is entered visually (see above Trigger explanation). SKF Microlog - GX Series 2 - 9 User Manual...

  • Page 52: Sensor Setup

    The Sensor Setup module provides a master list of preconfigured sensors. The default sensor list is configured at the SKF factory and contains SKF sensors used for most machinery monitoring needs. These default sensor configurations can not be edited or deleted from the list.
  • Page 53 Delete – (Not applicable to SKF default sensors.) Highlight a user configured sensor, then press Delete to delete the sensor from the list. Edit - (Not applicable to SKF default sensors.) Highlight a user configured sensor, then press Edit to display the Modify Setup screen, allowing you to alter the sensor’s configuration.
  • Page 54 From the Sensor Setup screen, use the up and down arrow keys to highlight the sensor whose configuration you wish to view and then press the View function button. The View Sensor screen displays the sensor’s configuration. 2 - 12 SKF Microlog - GX Series User Manual...

  • Page 55: Troubleshooting

    If your problem is not resolved, perform a soft reset by holding down the 2, 7, 8, and 9 keys simultaneously. • If your problem still is not resolved, perform a hard reset. SKF Microlog - GX Series 2 - 13 User Manual...
  • Page 56  Ensure that the device is plugged into the battery charger / line power. • If your problem is not resolved, upload your data (if available) and perform a Memory/Initialize operation to initialize your GX Series Microlog. 2 - 14 SKF Microlog - GX Series User Manual...
  • Page 57 ATEX Zone 2 areas, in some cases limiting the types of POINTs that may be collected. Refer to Appendix D of this manual for important restrictions when using the CMXA 75-SL-Z2 Microlog in a Zone 2 restricted area. SKF Microlog - GX Series 3 - 1 User Manual...

  • Page 58: How To Download And Upload Routes And Route Data With The Gx Series Microlog

     be installed on the host PC. Refer to the Microsoft ActiveSync Communications section in Chapter 1 – Introduction to the SKF GX Series Microlog for details. • In the software, select the Transfer menu’s Microlog Analyzer option to open the Microlog Analyzer dialog.

  • Page 59: Selecting Operators

    Back – Press the Back button to close the Route Mgr and return to the Main Menu screen. Help – Press the Help function button to quickly view on-line help for Microlog data collection. SKF Microlog - GX Series 3 - 3 User Manual...

  • Page 60: How To Collect Route Measurements

    Figure 3 - 1. Example of a ROUTE Hierarchy List (with Access to Analyzer Module). active ROUTE Machine POINTs initiate Analyzer mode Review data for selected POINT active POINT’s info area 3 - 4 SKF Microlog - GX Series User Manual...
  • Page 61 When the ROUTE first displays, the hierarchy is collapsed. Use the right arrow button to expand each level of the ROUTE hierarchy, or Use the Expand function button to open all the SETs, Machines, and POINTs in the • ROUTE. SKF Microlog - GX Series 3 - 5 User Manual...
  • Page 62 Back – Press the Back button to exit the selected ROUTE and return to the Route Mgr screen. Shifted Function buttons include: Help – Press the Help function button to quickly view on-line help for Microlog data collection. 3 - 6 SKF Microlog - GX Series User Manual...
  • Page 63 ROUTE you wish to make active, then use the Enter or right arrow button to select the highlighted ROUTE. A progress dialog appears as the Microlog loads the ROUTE into memory, and the specified ROUTE’s hierarchy displays in the ROUTE list. SKF Microlog - GX Series 3 - 7 User Manual...
  • Page 64 Use the up and down arrows to move the pointer to the measurement POINT you wish to collect and press Enter to begin data collection. The POINT’s data collection screen displays. 3 - 8 SKF Microlog - GX Series User Manual...
  • Page 65 (alert alarm) or a red circle (danger alarm) on their hierarchy item. The title bar of the screen indicates the number of POINTs that have been collected over the total number of POINTs in the hierarchy. SKF Microlog - GX Series 3 - 9 User Manual...

  • Page 66: Viewing Dynamic Measurement Data

    You may perform a preliminary field analysis on collected ROUTE data. A movable cursor, controlled by left and right arrow keys, is provided to give you an accurate value of both amplitude and frequency of individual spectral components on the Microlog’s display. 3 - 10 SKF Microlog - GX Series User Manual...
  • Page 67 POINT is in alarm, yellow if it is in alert, and green if there is no alarm. If the measurement amplitude extends beyond the display, an “overall overflow” indicator appears at the top of the bar. SKF Microlog - GX Series 3 - 11 User Manual...
  • Page 68 You return to the ROUTE hierarchy list.  Press an Enter button to store the measurement’s data and return to the ROUTE hierarchy. Press the Shift button (0 / up arrow) to access alternate function buttons: 3 - 12 SKF Microlog - GX Series User Manual...
  • Page 69 @ptitude Analyst, after the automatic daily power cycle). Microlog Field Analysis Features Spectral analysis tools are available for more in-depth field analysis. Spectral analysis tools include: SKF Microlog - GX Series 3 - 13 User Manual...

  • Page 70: Viewing Time Waveform Data

    Time waveform plots display a short time sample of a raw vibration signal with vibration amplitude plotted over the time scale. Time waveform data displays on a plot similar to the spectrum display screen. 3 - 14 SKF Microlog - GX Series User Manual...
  • Page 71 Use the View function button to determine how to View FFT and Time data, options are: FFT and Time: Default View Point Info FFT and Time: No Overall FFT Only FFT Only: No Overall Time Only SKF Microlog - GX Series 3 - 15 User Manual...
  • Page 72 A negative percentage indicates the measurement is less than the previous reading. Function Buttons Time waveform display function buttons operate similarly to those previously described for spectral display screens. 3 - 16 SKF Microlog - GX Series User Manual...

  • Page 73: Viewing Multi-Channel Data

    Accelerometer Sensor for information on mounting and using the Triax sensor. Data collection for these POINT types results in multiple spectral displays. Figure 3 - 10. A Triax Spectrum Display Screen. SKF Microlog - GX Series 3 - 17 User Manual...
  • Page 74 CH2). This can be used to show the movement of the shaft within the bearing. Figure 3 - 11. An Orbit Display Screen. cursor position channel 1 sensor location channel 2 sensor location 3 - 18 SKF Microlog - GX Series User Manual...

  • Page 75: How To Collect Process Measurements

    POINT from the ROUTE list, and press an Enter button to begin data collection. The process measurement data screen displays. The data value and the subsequent bar indicator update automatically as averaging occurs. SKF Microlog - GX Series 3 - 19 User Manual...
  • Page 76 Back – Exits to the ROUTE mode’s ROUTE list screen without saving the measurement’s data. • Press an Enter button to store data and return to the Route mode ROUTE list. 3 - 20 SKF Microlog - GX Series User Manual...
  • Page 77 Back – Exits to the ROUTE mode’s ROUTE list screen without saving the measurement’s data. • Press an Enter button again to store the measurement data and continue collecting data for your ROUTE. SKF Microlog - GX Series 3 - 21 User Manual...

  • Page 78: How To Attach Coded Notes

     To enter a space, press the 0/Shift key twice. • Press OK to save the note. It appears beneath the Coded Notes list. 3 - 22 SKF Microlog - GX Series User Manual...

  • Page 79: Speed Tagging

    (0). A zero setting disables speed tagging. In this case, the measurement's speed value is established using the measurement's Speed field setting (manually input in the POINT Setup dialog). SKF Microlog - GX Series 3 - 23 User Manual...

  • Page 80: Using A Temporarily Attached Pickup

    If the averaging process has to be stopped after three or four averages, the reduction in accuracy is usually minimal. 3 - 24 SKF Microlog - GX Series User Manual...

  • Page 81: Hints For Efficient Data Collection

    2 V and 18 V, which is regarded as normal, and red if it is outside this range. This can be useful to troubleshoot a potential cable or accelerometer problem. SKF Microlog - GX Series 3 - 25 User Manual...

  • Page 82: Spectral Banding

    All POINTs must have the same coupling No double integration allowed • • Only the first envelope band is collected • The same sensor must be used for all points • Single display updates 3 - 26 SKF Microlog - GX Series User Manual...
  • Page 83 POINTs on the global measurement Config screen. • When the first POINT’s spectrum displays, press an Enter button to continue taking data for all the remaining MPA POINTs, indicated by the Collecting Data screen. SKF Microlog - GX Series 3 - 27 User Manual...

  • Page 84: How To Review Collected Data

    Use the same hierarchy list navigation procedures described earlier in this chapter to highlight the measurement POINT whose data you wish to review. • When a POINT is highlighted, a Review function button becomes available. 3 - 28 SKF Microlog - GX Series User Manual...
  • Page 85 A confirmation message appears. Press Yes to remove the measurement or No to retain it. • After reviewing the measurement’s data, press either an Enter button or the Back function button to return to the ROUTE hierarchy. SKF Microlog - GX Series 3 - 29 User Manual...
  • Page 86 A confirmation message appears. Press Yes to remove the measurement or No to retain it. • After reviewing the measurement’s data, press either an Enter button or the Back function button to return to the ROUTE hierarchy. 3 - 30 SKF Microlog - GX Series User Manual...
  • Page 87 Press the Previous function button to go back to the prior measurement. • • Press the Delete function button to delete the measurement. In the case of MPA groups, delete deletes the measurements for all POINTs in the group. SKF Microlog - GX Series 3 - 31 User Manual...
  • Page 88 By default, the historical data displays as a single spectrum. Optionally, you may change the default to view historical data as a waterfall plot. 3 - 32 SKF Microlog - GX Series User Manual...
  • Page 89 You may use the Earlier and Later function buttons to scroll through the measurements. The selected measurement’s spectrum is bolded and information for the measurement displays in the information area at the bottom of the screen. SKF Microlog - GX Series 3 - 33 User Manual...
  • Page 90 A confirmation message appears. Press Yes to remove the measurement or No to retain it. • After reviewing your stored measurement data, press the Review screen’s Back function button to return to the ROUTE hierarchy screen. 3 - 34 SKF Microlog - GX Series User Manual...
  • Page 91 After data collection, the Analyzer measurement’s data may be stored in the Microlog for future review, and can be transferred to the host computer and viewed with SKF’s Analysis and Reporting Manager (ARM) software.
  • Page 92 Analyzer screen provides measurement icons for standard machinery vibration measurements, allowing you to quickly perform these standard measurements. All Analyzer measurements are pre-configured from the SKF factory with default measurement settings that apply to most machinery monitoring needs (based upon industry standards).

  • Page 93: How To Collect Standard Vibration Measurements

     If you highlight a measurement’s icon and press the Enter (Fire) button instead of the Start function button, you will display the measurement’s setup screen, not start the measurement. SKF Microlog - GX Series 4 - 3 User Manual...
  • Page 94  After the measurement results freeze on the screen, the Stop button changes to a Start button, allowing you to re-start the measurement, if desired. 4 - 4 SKF Microlog - GX Series User Manual...
  • Page 95 Table of peaks for CH1 – Displays measurement results in tabular form for the spectrum’s eight highest amplitude peaks. For each peak, displays the peak’s frequency , amplitude, and phase angle (if applicable). SKF Microlog - GX Series 4 - 5 User Manual...
  • Page 96 Press the View function button, the Analyzer – View Options screen displays the View field. • Press the right arrow to display the View options drop down list. Figure 4 - 4. Selecting a View Option. 4 - 6 SKF Microlog - GX Series User Manual...
  • Page 97 Save the measurement results, and then return to the Analyzer screen – or to Exit the measurement without saving the results - or to Cancel and go back to the measurement results screen. SKF Microlog - GX Series 4 - 7 User Manual...
  • Page 98 The setup screen initially displays a “reduced” list of measurement parameters, those that are more frequently changed by analysts prior to performing the measurement. The complete parameter list may be viewed using the setup screen’s Expand function button. 4 - 8 SKF Microlog - GX Series User Manual...
  • Page 99 Also note that in Reduced view setup screens, the Sensor Units, Sensitivity, and ICP Supply parameters only display if the Variable sensor is selected. SKF Microlog - GX Series 4 - 9 User Manual...
  • Page 100 Display Y-axis – (Linear, Logarithmic, or dB) Specify the type of y-axis scaling. If dB is selected for the Y-axis display, additional dB Reference and dB Ref Units fields display. 4 - 10 SKF Microlog - GX Series User Manual...
  • Page 101 If the maximum frequency is low and the FFT process time is fast, the average sum would include a high percent of old data with maximum overlap.  Below 2 kHz, 50% overlap and six averages is a reasonable ROUTE setup. SKF Microlog - GX Series 4 - 11 User Manual...
  • Page 102 After you are finished with your measurement setup changes, press the Start function button to begin the measurement using the new settings. The measurement is performed and the initial measurement results display. 4 - 12 SKF Microlog - GX Series User Manual...
  • Page 103 Function button options for completing, viewing and saving the measurement’s results operate as previously described in this chapter’s Using the Default Measurement Setup section. Reference this previous section for details. SKF Microlog - GX Series 4 - 13 User Manual...

  • Page 104: How To Save, View, And Delete Analyzer Measurement Results

    This allows you • Analyze the saved measurement results on the Microlog at a later time. Transfer the saved measurement results to SKF’s Analysis and Reporting Manager • software for long term storage and more in-depth analysis.
  • Page 105 Press the Shift button (0 / up arrow) to access alternate function buttons: Delete – Highlight the .csv spectral results file to delete and press the Delete function button to permanently delete the saved measurement results. SKF Microlog - GX Series 4 - 15 User Manual...
  • Page 106 You may then alter the measurements settings and retake the measurement with new settings.  Press the Print function button to print the displayed spectrum. Reference Chapter 1 – Introduction to the GX Series Microlog for more information on printing. 4 - 16 SKF Microlog - GX Series User Manual...
  • Page 107  be installed on the host PC. Refer to the Microsoft ActiveSync Communications section in Chapter 1 – Introduction to the SKF GX Series Microlog for details. • Using Windows Explorer, copy the stored spectrum files (.csv files) from the GX’s Mobile Device/Internal Disk/Analyser folder to an appropriate folder on the host computer.
  • Page 108 All – Deletes all saved folders and files. You are prompted to confirm the deletion. Cancel – Cancels the deletion process and returns you to the Analyzer – Load Setup screen. • Select one of the above deletion options to perform the deletion. 4 - 18 SKF Microlog - GX Series User Manual...

  • Page 109: How To Perform Multi-Channel Measurements

     The phase reading is only valid when the cursor is moved to a specific peak in the spectrum (i.e., the 1 X peak). SKF Microlog - GX Series 4 - 19 User Manual...
  • Page 110 A and channel 4 attached to connector B. The CMAC 5079 cable connected to CH2 should have the sensor for channel 2 attached to connector A and the sensor for channel 3 attached to connector B. 4 - 20 SKF Microlog - GX Series User Manual...
  • Page 111 • Highlight or enter the desired option, then press the left arrow key (or Enter button) to select the highlighted option. SKF Microlog - GX Series 4 - 21 User Manual...
  • Page 112  In all multi-channel measurement results displays, Average, Stop, Start, and Save function button options operate as previously described in the Using the Default Measurement Setup section. Reference this previous section for details. 4 - 22 SKF Microlog - GX Series User Manual...
  • Page 113 Power Spectrum for CH1, 2 FFT for CH1 FFT for CH2 FFT+Power Cepstrum for CH1 FFT+Power Spectrum for CH1 FFT+Power Cepstrum for CH2 FFT+Power Spectrum for CH2 Table of peaks for CH1, 2 SKF Microlog - GX Series 4 - 23 User Manual...
  • Page 114 In a two channel time waveform display, the upper trace displays the first channel, the lower trace displays channel 2. View menu options are: Time for CH1, 2 Time for CH1 Time for CH2 4 - 24 SKF Microlog - GX Series User Manual...
  • Page 115 FFT+Power Cepstrum for CH1 FFT+Power Spectrum for CH1 FFT+Power Cepstrum for CH2 FFT+Power Spectrum for CH2 Time+Power Cepstrum for CH2 Time+Power Cepstrum for CH2 Table of peaks for CH1, 2 SKF Microlog - GX Series 4 - 25 User Manual...
  • Page 116 Power Spectrum for CH1, 2 FFT for CH1 FFT for CH2 FFT+Power Cepstrum for CH1 FFT+Power Spectrum for CH1 FFT+Power Cepstrum for CH2 FFT+Power Spectrum for CH2 Table of peaks for CH1, 2 4 - 26 SKF Microlog - GX Series User Manual...
  • Page 117 Power Cepstrum for CH1, 2 Power Spectrum for CH1, 2 FFT for CH1 FFT for CH2 FFT+Power Cepstrum for CH1 FFT+Power Spectrum for CH1 FFT+Power Cepstrum for CH2 FFT+Power Spectrum for CH2 SKF Microlog - GX Series 4 - 27 User Manual...
  • Page 118 (even if one is hidden). This is also true for Full Scale adjustments using the up/down arrow buttons (amplitude axis), and display / expand adjustments using the +/- keys (frequency/time axis). 4 - 28 SKF Microlog - GX Series User Manual...

  • Page 119: How To Measure Shaft Orbit

     If you highlight a measurement’s icon and press the Enter (Fire) button instead of the Start function button, you will display the measurement’s setup screen, not start the measurement. SKF Microlog - GX Series 4 - 29 User Manual...
  • Page 120 View options for orbit measurements include: Orbit (raw) Orbit 1X Orbit 2X Orbit 3X Time for CH 1, 2 Time 1X Time 2X Time 3X Time 4X Time for CH 1 Time for CH 2 4 - 30 SKF Microlog - GX Series User Manual...
  • Page 121 The Orbit Default Setup Screen (Expanded View). The setup screen initially displays a “reduced” list of measurement parameters, those that are more frequently changed by analysts prior to performing the measurement. SKF Microlog - GX Series 4 - 31 User Manual...
  • Page 122 Use cursor functions to analyze the measurement. Average, Stop, Start, View and Save function button options operate as previously described in the Using the Default Measurement Setup section. Reference this previous section for details. 4 - 32 SKF Microlog - GX Series User Manual...

  • Page 123: How To Perform A Bump Test

     If you highlight a measurement’s icon and press the Enter (Fire) button instead of the Start function button, you will display the measurement’s setup screen, not start the measurement. SKF Microlog - GX Series 4 - 33 User Manual...
  • Page 124 A Bump Test Display After a Hammer Hit. Average, Stop, Start, and Save function button options operate as previously described in this chapter’s Using the Default Measurement Setup section. Reference this previous section for details. 4 - 34 SKF Microlog - GX Series User Manual...
  • Page 125 • Highlight or enter the desired option, then press the left arrow key (or Enter button) to select the highlighted option. SKF Microlog - GX Series 4 - 35 User Manual...

  • Page 126: How To Perform Motor Current Measurements

    AC induction motor rotor bar defects. The Microlog’s Motor Current option acquires the signal from an SKF CMAC 5208 current clamp and produces a very high definition spectrum on its display. The analyst can then view the spectrum to differentiate between the motor slip frequency and the electrical frequency and observe the sidebands.
  • Page 127 From the Analyzer screen use the arrow keys to highlight the Motor Current icon, and press the Setup function button (or the Enter / Fire key). The measurement’s setup screen displays. SKF Microlog - GX Series 4 - 37 User Manual...
  • Page 128 Use cursor functions to analyze the measurement. Average, Stop, Start, View and Save function button options operate as previously described in the Using the Default Measurement Setup section. Reference this previous section for details. 4 - 38 SKF Microlog - GX Series User Manual...

  • Page 129: Microlog Balancing Overview

    Stop - First, with the machine stopped, set up the balancing equipment and mark your tachometer reference point on the rotor or shaft. Use Microlog Setup menu options to configure balancing measurement parameters for the balancing run sequence. SKF Microlog - GX Series 5 - 1 User Manual...
  • Page 130 7 - If Necessary, Attach a Trim Weight Stop - If additional trim weights are necessary to balance the machine within tolerances, stop the machine and attach the specified trim weights. 5 - 2 SKF Microlog - GX Series User Manual...

  • Page 131: How To Set Up The Microlog For A Single-Plane Procedure

    2-plane to a single plane procedure for the rest of the balancing job, if desired. New - Provides another way to set up a new “user defined” balancing measurement. SKF Microlog - GX Series 5 - 3 User Manual...
  • Page 132 On the Microlog, select Balancing from the main menu. The Balancing menu displays. • For a single plane balance job, select the 1-Plane icon, and then press the Setup function button. The 1-Plane setup screen displays. 5 - 4 SKF Microlog - GX Series User Manual...
  • Page 133 Reduce – After expanding the measurement parameter list, press Reduce to reduce the list back to only those parameters more frequently changed by analysts. Default – Returns parameter list settings back to their SKF factory defaults. Balance Setup Screen Fields •...
  • Page 134 Manual – When set to Manual, you will enter the trigger level in volts as numeric input in the Trigger Level setup field. 5 - 6 SKF Microlog - GX Series User Manual...
  • Page 135 The Balance – Save Setup screen displays. Refer to Chapter 4, The Analyzer Module’s section on How to Save, View, and Delete Analyzer Measurement Results for details on saving your measurement setups. SKF Microlog - GX Series 5 - 7 User Manual...

  • Page 136: How To Perform A Single-Plane Procedure

    The Balancing Summary screen displays balancing run data in tabular format. Hence, as you proceed through your balancing runs, you may access this Balancing Summary screen by pressing the current balancing screen’s Table function button. 5 - 8 SKF Microlog - GX Series User Manual...
  • Page 137 Start function button (or an Enter / Fire button). The Microlog initiates the reference run measurements for RPM, magnitude, and phase. The Initial Run screen displays the measurement results. SKF Microlog - GX Series 5 - 9 User Manual...
  • Page 138 Polar – Press the Polar function button to display a polar vector version of the initial run data instead of the bar chart version. This polar vector display provides a more powerful analysis tool to visually gauge your balancing job’s progress. 5 - 10 SKF Microlog - GX Series User Manual...
  • Page 139 Balancing Summary screen (where the saved initial run data appears in the balancing summary table). The Stop button changes to a Start button, allowing you to re-start the measurement, if desired. SKF Microlog - GX Series 5 - 11 User Manual...
  • Page 140 After saving the balancing job, you are returned to the Initial Run screen. You may also save the balancing job from the Balancing – Summary screen. 5 - 12 SKF Microlog - GX Series User Manual...
  • Page 141 Goto – Use the up / down arrow keys to highlight the balancing job item you wish to go to (in this case, TWA1 – Trial Weight Plane A / Channel 1) and press the Goto function button. The Balancer – Trial Weight screen displays. SKF Microlog - GX Series 5 - 13 User Manual...
  • Page 142 • On the machine, carefully attach the precise weight at the precise angle and radius specified. Balancing results depend greatly on the precision of your measurements and actions. 5 - 14 SKF Microlog - GX Series User Manual...
  • Page 143 Press an Enter / Fire button. The Trial Run screen displays. • Initially the trial run screen does not show data. Press the Start button or an Enter / Fire key to record the trial run. SKF Microlog - GX Series 5 - 15 User Manual...
  • Page 144 For accurate balancing efforts, these readings should satisfy the 30/30 rule (from the reference run, the trial weight causes a 30% change in magnitude, or a 30 degree change in phase, or both). 5 - 16 SKF Microlog - GX Series User Manual...
  • Page 145 In the Summary table, navigate to the previous Trial Weight item (TW), and press the Goto function button. A message prompts whether you wish to add another trial run, or replace the existing trail run. SKF Microlog - GX Series 5 - 17 User Manual...
  • Page 146 (or an Enter / Fire button) to proceed with a new trial run. You may repeat the above procedure until you determine the trial weight, angle, or radius you wish to use. 5 - 18 SKF Microlog - GX Series User Manual...
  • Page 147  Trial weights are normally temporary, and removed before one final correction weight is attached. However, sometimes the trial weight must be permanently attached for safety purposes, and is therefore left on the machine. SKF Microlog - GX Series 5 - 19 User Manual...
  • Page 148 Typically, select Yes, as you typically plan to remove the temporary trial weight (or select No if you plan to leave the trial weight attached). The Correction Weight screen displays. Add the Correction Weight Figure 5 - 15. The Correction Weight Screen. 5 - 20 SKF Microlog - GX Series User Manual...
  • Page 149 Actual function button, the Actual Correction dialog displays and allows you to enter the actual correction weight and angle you are using. Figure 5 - 16. The Actual Correction Dialog. SKF Microlog - GX Series 5 - 21 User Manual...
  • Page 150  If desired, press the Calc button to return to the initial calculated Correction Weight screen. Figure 5 - 17. A Residual Unbalance Message. 5 - 22 SKF Microlog - GX Series User Manual...
  • Page 151 Start function button (or an Enter / Fire button) to proceed to the second correction weight screen (CW 2). • Repeat the correction weight / run procedures as described above. SKF Microlog - GX Series 5 - 23 User Manual...

  • Page 152: Two-Plane Balancing Procedure Overview

    1. A trial weight is a temporary weight attached to produce a change from the original unbalance readings (reference run readings). Input the trial weight amount and placement angle into the Microlog. 5 - 24 SKF Microlog - GX Series User Manual...
  • Page 153 “trim” weight that can be added to further balance the plane. 8B - Perform a Correction Weight Run on Plane 2 Spin - Perform a Correction Run on Plane 2. SKF Microlog - GX Series 5 - 25 User Manual...

  • Page 154: How To Set Up A 2 Plane Procedure

    Setup options specific to 2 plane procedures are detailed below. Reference the How to Set Up the Microlog for a Single-Plane Procedure section for all other settings that apply to both single and 2 plane balancing. 5 - 26 SKF Microlog - GX Series User Manual...

  • Page 155: How To Perform A Dynamic 2 Plane Procedure

    Start the machine and bring it up to its steady running speed. • At the 2-Plane Balance Setup screen, press the Start function button (or an Enter / Fire button). The Balancing Summary screen displays. SKF Microlog - GX Series 5 - 27 User Manual...
  • Page 156 Start function button (or an Enter / Fire button). The Microlog initiates the reference run measurements for RPM, magnitude, and phase. The Initial Run screen displays measurement results. 5 - 28 SKF Microlog - GX Series User Manual...
  • Page 157 In a 2-plane procedure, only one plane’s polar plot displays at a time. Use the right / left arrow keys to display the other plane’s polar plot. SKF Microlog - GX Series 5 - 29 User Manual...
  • Page 158 Then you can update the saved file with subsequent runs. • To proceed with the balancing job, follow the on-screen prompt and press an Enter / Fire key to proceed to enter Trial Weight data. 5 - 30 SKF Microlog - GX Series User Manual...
  • Page 159 • On the machine, carefully attach the precise weight at the precise angle and radius specified. Balancing results depend greatly on the precision of your measurements and actions. SKF Microlog - GX Series 5 - 31 User Manual...
  • Page 160 Enter / Fire button to proceed to enter Plane B’s trial weight. Before doing so, you are prompted whether the trial weight for plane A will be removed, answer appropriately. The Balancer – Trial Weight TW B screen displays. 5 - 32 SKF Microlog - GX Series User Manual...
  • Page 161 Plane B. • On the machine, carefully attach the precise weight at the precise angle and radius specified. Balancing results depend greatly on the precision of your measurements and actions. SKF Microlog - GX Series 5 - 33 User Manual...
  • Page 162 Fire button to proceed to enter the correction weight. Before doing so, you are prompted whether the trial weight for plane B will be removed, answer appropriately. The Balancer – Correction Weight screen displays. 5 - 34 SKF Microlog - GX Series User Manual...
  • Page 163 How to Perform a Single- Plane Procedure section.  In all Correction Weight fields, use the up / down / right / left arrow buttons to move between fields. SKF Microlog - GX Series 5 - 35 User Manual...
  • Page 164 From the Plane A’s Correction Run screen, after Stopping data collection, press an Enter / Fire button to proceed to Plane B’s Correction Run screen. The Balancer – Correction Weight CW 2 screen displays. 5 - 36 SKF Microlog - GX Series User Manual...
  • Page 165 Start function button (or an Enter / Fire button) to proceed to the second correction weight screen (CW 2). • Repeat the correction weight / run procedures as described above. SKF Microlog - GX Series 5 - 37 User Manual...

  • Page 166: How To Perform A 1-2 Plane With Prognosis Procedure

    Solution field is set to 1-2 Plane with Prognosis – or you can select the main Balancing screen’s 1-2 Prognosis icon. Figure 5 - 31. The 2-Plane Setup Screen’s Solution / 1-2 Plane with Prognosis Setting. 5 - 38 SKF Microlog - GX Series User Manual...
  • Page 167 Start function button (or an Enter / Fire button). The Microlog initiates the reference run measurements for RPM, magnitude, and phase. The Initial Run screen displays measurement results. SKF Microlog - GX Series 5 - 39 User Manual...
  • Page 168 Then you can update the saved file with subsequent runs. • To proceed with the balancing job, follow the on-screen prompt and press an Enter / Fire key to proceed to enter Trial Weight data. 5 - 40 SKF Microlog - GX Series User Manual...
  • Page 169 • On the machine, carefully attach the precise weight at the precise angle and radius specified. Balancing results depend greatly on the precision of your measurements and actions. SKF Microlog - GX Series 5 - 41 User Manual...
  • Page 170 Enter / Fire button as if you were going to proceed to enter Plane B’s trial weight setting. Before doing so, you are prompted whether the trial weight for plane A will be removed, answer appropriately. 5 - 42 SKF Microlog - GX Series User Manual...
  • Page 171 2-Plane function button, in which case the 2-Plane balancing procedure resumes. • Select to proceed with either a single plane or 2 plane procedure, as described above. SKF Microlog - GX Series 5 - 43 User Manual...
  • Page 172 How to Perform a Single- Plane Procedure section.  In all Correction Weight fields, use the up / down / right / left arrow buttons to move between fields. 5 - 44 SKF Microlog - GX Series User Manual...
  • Page 173 Start function button (or an Enter / Fire button) to proceed to the second correction weight screen (CW 2). • Repeat the correction weight / run procedures as described above. SKF Microlog - GX Series 5 - 45 User Manual...
  • Page 174  You can use the up / down arrow keys to highlight a balancing run item and press the Goto function button to resume the balancing job at that point. 5 - 46 SKF Microlog - GX Series User Manual...

  • Page 175: Balancing Using The Strobe Light

     The trigger must stay depressed until the Microlog is finished capturing the data.  Once the Microlog has captured the data return the Lock / Track rocker switch to INT. SKF Microlog - GX Series 5 - 47 User Manual...
  • Page 176 Internal mode and repeat the adjustments. Also, try switching between the Narrow and Wide Bandwidth LOCK to optimize results. Generally, the Wide Bandwidth will give best tracking results, and the Narrow Bandwidth will give better stabilization. 5 - 48 SKF Microlog - GX Series User Manual...
  • Page 177 Microsoft Windows .wav audio file. The recorded time waveform may be viewed on the Microlog for in-the-field analysis, or the .wav file can be imported into SKF's @ptitude Analyst / Analysis and Reporting Module software. Using the analysis software, you can play the .wav recording and post-process vibration analysis measurements on it as if you were performing measurements on the machine in real time.

  • Page 178: How To Perform A Data Recorder Measurement

    Setup – Displays the measurement setup screen for the highlighted measurement type (i.e., Recall, General, or New). Start – Take Recorder data using the currently highlighted icon’s settings. Back – Returns you the Microlog’s Main Menu screen. 6 - 2 SKF Microlog - GX Series User Manual...
  • Page 179 Range setting (full scale setting) is too small to accommodate the signal’s amplitude, a Signal Clipped message displays. In this case, press the Back function button to return to the Setup screen and increase the Range setting. SKF Microlog - GX Series 6 - 3 User Manual...
  • Page 180 Save – At any time (either during the recording or after the recording is paused), press the Save function button to save the recording. The Recorder – Save Data screen displays allowing you to save the reading. 6 - 4 SKF Microlog - GX Series User Manual...
  • Page 181 Microlog’s Mobile Device/Internal Disk/Analyser/Recorder folder. The .csv time waveform files may be reviewed in the field with the Recorder’s Review Data option. Time waveform .wav audio files may be transferred to SKF’s Analysis and Reporting Manager software for post processing.
  • Page 182 • Highlight or enter the desired option, then press the left arrow key (or Enter button) to select the highlighted option. 6 - 6 SKF Microlog - GX Series User Manual...
  • Page 183 Internal drive (not recommend due to large file size) or an inserted SD card (recommended). In the screen’s information area, the maximum recording time is determined by the measurement’s settings and the free space available on the specified medium. (Affects maximum recording time). SKF Microlog - GX Series 6 - 7 User Manual...
  • Page 184 Function button options for completing, viewing and saving the measurement’s results operate as previously described in this chapter’s Collecting Recorder Measurements Using the Default Measurement Setup section. Reference this previous section for details. 6 - 8 SKF Microlog - GX Series User Manual...
  • Page 185  For optimized recording, the RUCD module should be used in conjunction with an ultra high speed SD card. Saving data to a card will greatly increase the amount of data able to be recorded. SKF Microlog - GX Series 7 - 1 User Manual...

  • Page 186: How To Set Up A Rucd Measurement

    Attach the sensor and tacho to the test object (machine case or structure). • From the main menu screen, use arrow keys to highlight the RUCD icon, and press an Enter / Fire button. The RUCD screen displays. 7 - 2 SKF Microlog - GX Series User Manual...
  • Page 187 (i.e., Recall, General Run Up, General Coast Down, or New). Start – Take RUCD data using the currently highlighted icon’s settings. Back – Returns you the Microlog’s Main Menu screen. SKF Microlog - GX Series 7 - 3 User Manual...
  • Page 188 Sensitivity – (Not editable if a preconfigured sensor is selected in the Sensor field.) When the Variable sensor is selected, use the alphanumeric keypad to enter transducer sensitivity in millivolts (mV) per Engineering Unit (EU). 7 - 4 SKF Microlog - GX Series User Manual...
  • Page 189 Reference Chapter 4, The Analyzer Module section on Saving Analyzer Measurement Results for details on how to save your measurement setup. SKF Microlog - GX Series 7 - 5 User Manual...

  • Page 190: Recording The Measurement

    (full scale setting) is too small to accommodate the signal’s amplitude, a Signal Clipped message displays. In this case, press the Back function button to return to the Setup screen and increase the Input Range setting. 7 - 6 SKF Microlog - GX Series User Manual...

  • Page 191: Displaying Acquired Data

    Press the OK function button to acknowledge completion. The Microlog automatically displays the RUCD - Display Select menu to provide analysis options for the recorded data. Displaying Acquired Data Figure 7 - 5. The Display Select Menu. SKF Microlog - GX Series 7 - 7 User Manual...
  • Page 192 Channels – If multiple channels were recorded, specify which channel’s data to display in the Bode plot. Start Spd / Stop Spd (RPM) – For the recorded data, determines the start and stop speeds for Bode plot analysis. 7 - 8 SKF Microlog - GX Series User Manual...
  • Page 193 Determines the order number(s) that will be tracked and displayed. Can be a non- integer order, but the maximum order specified cannot exceed the Max No. Orders set during the data acquisition stage. SKF Microlog - GX Series 7 - 9 User Manual...
  • Page 194  Tip – With a Bode plot displayed, use the “shift function” button (0 / up arrow) to display Table and Nyquist function buttons that, using the same display settings, allow instant display of Table and Nyquist plots. 7 - 10 SKF Microlog - GX Series User Manual...
  • Page 195 Y-axis are not applicable; these settings are absent from the setup screen. Refer to the previous Bode Plot Display section for details on the remaining Nyquist plot settings. SKF Microlog - GX Series 7 - 11 User Manual...
  • Page 196  Tip – With a Nyquist plot displayed, use the “shift function” button (0 / up arrow) to display Table and Bode function buttons that allow instant display of Table and Bode displays. 7 - 12 SKF Microlog - GX Series User Manual...
  • Page 197 Refer to the previous Bode Plot Display section for details on the remaining Table display settings.  The number of orders that can be tabulated is limited to two orders. SKF Microlog - GX Series 7 - 13 User Manual...
  • Page 198 Nyquist and Bode plots using the same settings.  Table data is saved in .csv format, which can be opened in Microsoft Excel or imported into other applications that support comma separated value files. 7 - 14 SKF Microlog - GX Series User Manual...
  • Page 199 %∆ RPM + ∆ Time - Combination of speed and time settings. If speed stops changing, then spectra are calculated at the defined time interval. SKF Microlog - GX Series 7 - 15 User Manual...
  • Page 200 Waterfall Display Setup menu.  The larger the acquired data .wav file, the longer the processing time required. Figure 7 - 13. The Waterfall Display Setup Menu. 7 - 16 SKF Microlog - GX Series User Manual...
  • Page 201 (maximum 60). The specified number of spectra display evenly across the waterfall plot’s entire speed or time range. Figure 7 - 15. Example No. Spectra Settings of 20 and 38. SKF Microlog - GX Series 7 - 17 User Manual...
  • Page 202 Example Trace Offset Settings of 0° and 22.5°. Trace Height – (Small, Medium, or Large) – Specify the height of waterfall spectra. Figure 7 - 17. Example Trace Height Settings of Small, Medium, and Large. 7 - 18 SKF Microlog - GX Series User Manual...
  • Page 203 Figure 7 - 19. Example Blanking Settings of 0%, 2%, and 5%. • After setting all Waterfall Disp. Settings, press the screen’s Display function button to display the waterfall plot. SKF Microlog - GX Series 7 - 19 User Manual...
  • Page 204 Waterfall Setup screen to change options and process new waterfall spectra frequency and magnitude at cursor position on active spectrum initiate Display Setup screen for quick re-adjustment of how spectra appear in the waterfall plot waterfall “display status” area 7 - 20 SKF Microlog - GX Series User Manual...
  • Page 205 Z-axis Zoom – (not applicable for waterfalls with all extracted spectra displayed) - If the Waterfall Disp. Setup menu's No. Spectra option is set to a number less than the number of spectra extracted: SKF Microlog - GX Series 7 - 21 User Manual...
  • Page 206 If you cursor past the last spectrum in a zoomed display, the Z-axis pans to show the next set of traces at the same zoom level. Figure 7 - 22. An Example of Z-Axis Zoom with No. Spectra set to 5. 7 - 22 SKF Microlog - GX Series User Manual...
  • Page 207 Spectgm Disp. Setup menu.  The larger the acquired data .wav file, the longer the processing time required. Figure 7 - 24. The Spectrogram Display Setup Menu. SKF Microlog - GX Series 7 - 23 User Manual...
  • Page 208 Blanking – (0% - 25%) - Removes a specified percentage from the noise floor of each spectrum. Helps clarify the presence of machine orders or structural frequencies. Figure 7 - 26. Example Blanking Settings of 0% and 1% (left to right). 7 - 24 SKF Microlog - GX Series User Manual...
  • Page 209 Spectrogram “Display Status” Area Figure 7 - 28. Spectrogram “Display Status” Indicators. lowest amplitude and associated color indication color (amplitude indicator) at cursor position on active trace highest amplitude and associated color indication SKF Microlog - GX Series 7 - 25 User Manual...

  • Page 210: Saving Rucd Data

    Reference Chapter 4, The Analyzer Module section on How to Save, View, and Delete Analyzer Measurement Results for detailed information on these procedures. 7 - 26 SKF Microlog - GX Series User Manual...
  • Page 211 = F/a . The definition of a Newton: The units for this are N/m/s • N = kg x m/s So we can see that: • N/m/s = kg SKF Microlog - GX Series 8 - 1 User Manual...

  • Page 212: How To Set Up An Frf Measurement

    Foam support to allow free movement Test Apparatus Setup To set up the equipment for an FRF test, you need an accelerometer, a hammer (SKF Part Number CMAC5056-GXHK-1 or CMAC5057-GXHK-2), the object whose FRF measurement you are collecting, and a support for the object that allows free movement when the object is struck with the hammer (such as a foam support).
  • Page 213 All other settings are configured within the FRF Module. • From the Home screen, use the arrow keys to highlight the FRF icon, and press an Enter button. The FRF menu displays. SKF Microlog - GX Series 8 - 3 User Manual...
  • Page 214 Back – Returns you the Microlog’s Main Menu screen. • From the FRF menu, highlight the New icon and select the Setup button. The New FRF measurement setup screen displays. 8 - 4 SKF Microlog - GX Series User Manual...
  • Page 215 Sensor – Select the appropriate preconfigured sensor from the setup screen’s context sensitive sensor list. Note that the specified sensor type determines available options and engineering units for subsequent setup fields. SKF Microlog - GX Series 8 - 5 User Manual...
  • Page 216 This feature is optimized to work for frequency ranges between 200Hz and 4kHz. If Automatic is selected at a frequency range outside this band, the algorithm attempts to auto select, but may not achieve such good results. 8 - 6 SKF Microlog - GX Series User Manual...
  • Page 217 The results of these hits are used to automatically determine the best settings for the associated options. SKF Microlog - GX Series 8 - 7 User Manual...
  • Page 218 When hitting the object, try to make sure that you have one clean tap and 8 - 8 SKF Microlog - GX Series User Manual...
  • Page 219 Figure 8 - 6. The Automatic Parameter Setup Results. After the automatic parameter setup is complete, you are ready to begin capturing the FRF data. SKF Microlog - GX Series 8 - 9 User Manual...
  • Page 220 If Accept/Reject was set to Manual, you see the hammer and response time waveforms for both the hammer and accelerometer outputs, and then an Accept / Reject prompt. 8 - 10 SKF Microlog - GX Series User Manual...
  • Page 221 The Taking Data Screen – Final FRF. The FRF - Taking Data screen shows frequency, magnitude, phase, and Q factor (where appropriate) at the cursor position. The FRF measurement can be seen on the SKF Microlog - GX Series 8 - 11 User Manual...

  • Page 222: Field Calibration

    Select accelerometer of correct mass and connect to CH 1. • Place accelerometer on mass.  The mass can be hand-held. The use of foam or a supporting structure is not necessary. 8 - 12 SKF Microlog - GX Series User Manual...

  • Page 223: Saving Frf Data

    Reference Chapter 4, The Analyzer Module section on How to Save, View, and Delete Analyzer Measurement Results for detailed information on these procedures. SKF Microlog - GX Series 8 - 13 User Manual...
  • Page 225 Conformance test settings are specified in “test template files” that are transferred to the Microlog GX. A variety of pre-configured test templates are available from your local SKF sales representative. These pre-configured test templates measure machinery vibration in accordance with a recognized international standard (e.g., ISO, ANSI, API, etc.).

  • Page 226: How To Transfer Test Templates To The Microlog Gx

    ActiveSync to your Microlog GX through your host  computer. Refer to the Microsoft ActiveSync Communications section in Chapter 1 – Introduction to the SKF GX Series Microlog for details. • Using the appropriate cable, connect the Microlog GX to your host computer’s USB port.
  • Page 227 Create a 48x48 pixel bitmap (Windows BMP format) containing the desired icon. • Save the bitmap as ‘LargeIcon.bmp’ on the host PC. • Copy the ‘LargeIcon.bmp’ file to the top level template folder (for example, into Mobile Device/Internal Disk/ConfCheck/Custom Templates). SKF Microlog - GX Series 9 - 3 User Manual...

  • Page 228: How To Set Up Or Customize Conformance Test Templates

    (for example, ‘ConfCheck SetupGenerator v1.20RC6_SKF.msi’) and follow the on-screen instructions. To set up a custom test template:  • Start the CC Setup application from the Windows Start menu. 9 - 4 SKF Microlog - GX Series User Manual...
  • Page 229 Select the File menu’s New option, or click the New (Ctrl+N) toolbar button to open a new test template. Tabs display the new test template’s configuration parameters. Figure 9 - 5. The CC Setup Application’s Setup Tabs. SKF Microlog - GX Series 9 - 5 User Manual...
  • Page 230 – Specify if ICP powering should be applied to transducer (On) or not (Off”). Note that when selecting the measurement units from the drop-down list, the normal transducer ICP powering is deduced and applied. This default behavior should be overridden, if required. 9 - 6 SKF Microlog - GX Series User Manual...
  • Page 231 Triax Sensor – Check this box if a triaxial sensor is to be used. Note that checking this box enables further parameters to be entered: • The direction to be associated with each channel. For the SKF 3073 M6 triaxial accelerometer, channels X, Y and Z corresponds to direction ‘1’, ‘2’ and ‘3’ respectively.
  • Page 232 Results to CSV – Enable to save a results report in CSV format along with the default report (in CCR format). The CSV report can be viewed using Excel after uploading to the 9 - 8 SKF Microlog - GX Series User Manual...
  • Page 233 “Include in Results” box if the picture is not to be included in the results file. If left checked, this can cause the GX unit to run out of space relatively quickly after only a few results have been saved (depending on the picture size). SKF Microlog - GX Series 9 - 9 User Manual...
  • Page 234 (An estimate of the measurement acquisition time is given in the status area at the bottom of the “FFT Control” tab.) 9 - 10 SKF Microlog - GX Series User Manual...
  • Page 235 FFTs if any of the defined grade bands have vibration levels falling in the ‘C’ or ‘D’ grades. The special case option of ‘None’ prevents any FFTs being saved under any circumstances. SKF Microlog - GX Series 9 - 11 User Manual...
  • Page 236 Grade Labels – Click a colored bar to change it to a text entry field. Examples of grade labels are: Pass/Fail, Good/OK/Bad, Poor/Acceptable/Good, etc. It is good practice to keep these labels short since they will be displayed on the GX, which has limited screen real estate. 9 - 12 SKF Microlog - GX Series User Manual...
  • Page 237 1/3 Octave – Low: Automatically sets up 31 bands between 5 Hz and 5 kHz using 1/3 octave spacing.  If this entry is set to non-manual, band extents cannot be edited. SKF Microlog - GX Series 9 - 13 User Manual...
  • Page 238 Peak Find – Click on this cell to enable/disable the ‘peak-find’ functionality. When enabled, the Microlog GX will use the peak vibration level in the band instead of the overall vibration level. 9 - 14 SKF Microlog - GX Series User Manual...
  • Page 239  To select a number of cells, click on a start cell and then use the shift key in conjunction with the arrow keys to make the selection, which will be shaded blue. SKF Microlog - GX Series 9 - 15 User Manual...

  • Page 240: How To Perform A Conformance Survey

    Enter button. The Conformance Checker title screen momentarily displays, then the ConfCheck screen displays available test template folder icons. Figure 9 - 17. Test Template Folder Icons. Test template folders 9 - 16 SKF Microlog - GX Series User Manual...
  • Page 241 The example below tests displacement, velocity, and acceleration overall vibration measurements (bands) at horizontal and vertical axial orientations, at two measurement locations, and includes a manual measurement (where data is entered manually from the Microlog’s alpha/numeric keypad). SKF Microlog - GX Series 9 - 17 User Manual...
  • Page 242 Note that the Graphic button only appears if the template includes a picture. Figure 9 - 20. A Machine Graphic Indicating Measurement Locations. • Press the Table function button to return to the Measurement Results screen. 9 - 18 SKF Microlog - GX Series User Manual...
  • Page 243  Use up/down arrow buttons to locate a specific test position.  Press the Skip function button to skip a test location / orientation if location is not accessible. SKF Microlog - GX Series 9 - 19 User Manual...
  • Page 244 The Microlog GX can calculate up to 64 measurements for each position. If more than three bands are tested, hold down the Shift key (zero / 9 - 20 SKF Microlog - GX Series User Manual...
  • Page 245  When appending, an index suffix will be added to the existing filename. For example, if a result called “SomeResult” already exists, selecting this file and then choosing Append will cause the results to be saved to “SomeResult(2)”. SKF Microlog - GX Series 9 - 21 User Manual...

  • Page 246: Saving Conformance Check Data

    Reference Chapter 4, The Analyzer Module section on How to Save, View, and Delete Analyzer Measurement Results for detailed information on these procedures. 9 - 22 SKF Microlog - GX Series User Manual...
  • Page 247 The Spindle Assessment kit has been developed in conjunction with the SKF Machine Tool Precision Services and is designed to perform nine tests on the machine tool...

  • Page 248: How To Transfer Test Templates To The Microlog

    Files may be copied from the host computer to the Microlog’s Internal Disk drive using the Spindle Test Installer (Start – Programs – SKF – Microlog – Machine Tools – Spindle Test Installer). This will install both the Spindle Test Module and any Template files onto the unit.
  • Page 249 The Spindle Test title screen momentarily displays, then the Spindle Test screen displays available test template folder icons. Figure 10 - 2. Test Template Folder Icons. Test template folders SKF Microlog - GX Series 10 - 3 User Manual...
  • Page 250 To determine measurement locations on the machinery being tested, press the Graphic function button. A graphic displays the machine’s measurement locations. Note that the Graphic button only appears if the template includes a picture. 10 - 4 SKF Microlog - GX Series User Manual...
  • Page 251 Enter key to begin testing. The screen momentarily displays a message indicating a measurement in progress, then displays test results for the current measurement position, and automatically sequences to the next position. Figure 10 - 5. Example Test Results. SKF Microlog - GX Series 10 - 5 User Manual...

  • Page 252: Spindle Tests Overview

    Enter button. This is to determine any resonance frequencies. After determining resonance frequency, select the Microlog’s Spindle module, and then select the module’s Resonant Frequency test and enter the resonance frequency. Figure 10 – 6. Perform an Imbalance Test. 10 - 6 SKF Microlog - GX Series User Manual...
  • Page 253 Use the imbalance test’s pre-set vibration measurement to determine vibration amplitudes at test speed (1X RPM). Figure 10 – 8. Preset Vibration Measurements. • If the imbalance value exceeds limits, proceed with balancing using the Microlog’s Balancing module. SKF Microlog - GX Series 10 - 7 User Manual...
  • Page 254 Figure 10 – 9. Mechanical Condition Test Setup Screens. • Execute the test’s pre-set vibration measurement (results display in either velocity / acceleration data as per data entered in previous setup fields). 10 - 8 SKF Microlog - GX Series User Manual...
  • Page 255 Spindle Test Module Spindle Tests Overview Figure 10 – 10. Preset Vibration Measurements. • Determine vibration values and evaluate against SKF vibration acceptance standard. Bearing Condition test overview To perform a bearing condition test: • Connect the sensor to the Microlog’s input marked “CH 1.”...
  • Page 256 Figure 10 – 11. Select the Speed Range for the Spindle. • Execute the preset enveloped acceleration vibration measurement(s) to determine bearing condition and evaluate vibration values against SKF vibration acceptance standard. Figure 10 – 12. Execute Preset Enveloped Acceleration Vibration Measurements.
  • Page 257 Power the Microlog on and select the Spindle module’s Nose Run-Out test. • In Nose Run-Out test setup screens, enter the tool holder type and select the appropriate conformance setup. Figure 10 – 14. Nose Run-Out Test Setup Screens. SKF Microlog - GX Series 10 - 11 User Manual...
  • Page 258 Figure 10 – 16. Enter Run-Out Range Value. • HSK tapers: after completing the radial measuring, follow up with an axial measure of contact face and evaluate against the acceptance standard. 10 - 12 SKF Microlog - GX Series User Manual...
  • Page 259 Visually inspect shaft taper and fingers for wear, and determine if fingers are missing and/or lack lubrication. • Power the Microlog on and select the Spindle module’s Clamp Force test. • Enter the tool holder type, ISO or HSK, and size. SKF Microlog - GX Series 10 - 13 User Manual...
  • Page 260 Mount the correct adapter and knob (stud) on the pull force gauge and measure the clamp force. • Repeat five times and calculate the average value. Key in the result. Figure 10 – 20. Enter the Average Value. 10 - 14 SKF Microlog - GX Series User Manual...
  • Page 261 Determine drawbar clamp force value and evaluate against pull force acceptance standard. Figure 10 – 21. Clamp Force Test Results. • If inadequate result, identify the root cause (e.g., finger defects, inadequate grease, broken or weak washer springs). SKF Microlog - GX Series 10 - 15 User Manual...
  • Page 262 In test setup screens, enter tool holder type and select the appropriate conformance setup. Figure 10 – 22. EM Test Setup Screens. Figure 10 – 23. EM Test for HSK and ISO. 10 - 16 SKF Microlog - GX Series User Manual...
  • Page 263 Extract the tool holder extruder to end position and measure with a depth micrometer against the shaft face. Figure 10 – 24. Measure with a Depth Micrometer. • Key in the result. Figure 10 – 25. Enter the EM Test Value. SKF Microlog - GX Series 10 - 17 User Manual...
  • Page 264 • Inspect belt for cracks, wear, scratches, etc. • Power the Microlog on and select the Spindle module’s Belt tension test. Figure 10 – 27. Belt Tension Test Setup Screens. 10 - 18 SKF Microlog - GX Series User Manual...
  • Page 265 Use Belt Tension test setup screens to define belt type and pulley size. • Key in the result. Figure 10 – 28. Enter the Result. • Determine value and evaluate against belt tension acceptance standard. Figure 10 – 29. Belt Test Results. SKF Microlog - GX Series 10 - 19 User Manual...
  • Page 266 Monitor the Speed with a Tachometer. • Power the Microlog on and select the Spindle module’s Speed Accuracy test. • Enter the tachometer speed value. • Evaluate against speed acceptance standard. 10 - 20 SKF Microlog - GX Series User Manual...
  • Page 267 Mount the vibration sensor on a suitable area close to the bearing. • Mount the tachometer and aim against the spindle. • Power the Microlog on and select the RUCD module. SKF Microlog - GX Series 10 - 21 User Manual...
  • Page 268 Figure 10 – 33. Resonance Frequency Test Results. • Determine the dominant resonance frequency. • Select the Spindle module’s Resonant Frequency test and enter the determined resonant frequency, evaluate against acceptance standard. 10 - 22 SKF Microlog - GX Series User Manual...

  • Page 269: Survey Warning Messages

    Save As dialog. The current template type is the default filename.  You may also overwrite or append an existing test result file using arrow buttons and the Save function button. SKF Microlog - GX Series 10 - 23 User Manual...

  • Page 270: How To View Stored Test Results

    Use up/down arrow buttons to locate a specific test position. Use left/right arrow buttons to toggle between measurement grades and measurement values.  Press the Print function button to print the displayed survey results. 10 - 24 SKF Microlog - GX Series User Manual...

  • Page 271: How To Backup Stored Survey Results

    To install the Results Import Tool, you will need to run the MTImportSetup.msi file. • Once installed, the Results Import Tool can be started by clicking the shortcut created at Start – Programs – SKF – Microlog – Machine Tools – Results Import Tool. •...

  • Page 272: How To Delete Stored Surveys

    Press and hold the Shift key (zero / up arrow) to display the Delete function button, then press the Delete function button. You are prompted to confirm the deletion. Press Yes and the survey results file is deleted from the Microlog. • 10 - 26 SKF Microlog - GX Series User Manual...
  • Page 273 Reference this manual's Appendix D, Safety Instructions for details. The SKF Idler Sound Monitor module turns an SKF Microlog into a hand held portable monitoring solution for early detection of faults in conveyor belt support and return idler rollers.
  • Page 274 Combining a high frequency microphone with a simple visual display and with headphones and an audible alarm, the SKF Idler Sound Monitor allows operators to detect faulty idler rollers with minimal training. The operator simply walks the length of the conveyor and continuously detects faulty idlers from up to 3 m (10 feet) away.

  • Page 275: Measurement Overview

    Idler Sound Monitor’s Notes function button to pause data collection while he enters a short note referencing the suspect/bad rollers’ numeric identifier. SKF Microlog - GX Series 11 - 3 User Manual...
  • Page 276 The amount of normalization applied to the signal  Normalization is the Idler Sound Monitor’s method for automatically adjusting volume as you move closer to, or further away from conveyor rollers. • Idler condition diagnosis 11 - 4 SKF Microlog - GX Series User Manual...

  • Page 277: Hardware Setup

    • Attaching the microphone / parabolic reflector to the Microlog. • If necessary, fitting the microphone’s optional wind baffle. • Attaching the headphones to the Microlog and adjusting headphone volume. SKF Microlog - GX Series 11 - 5 User Manual...
  • Page 278 Figure 11 - 5. The Microphone and Cable in Handle Housing. 11 - 6 SKF Microlog - GX Series User Manual...
  • Page 279 If using the hand held method, you must attach the adapter plate assembly (CMAC 5412) to the back of the Microlog – which allows you to connect the parabolic reflector to the back of the Microlog. SKF Microlog - GX Series 11 - 7 User Manual...
  • Page 280 Secure loose cable using the Velcro strap on the right-side of the adapter plate and then connect the cable’s connector to the Microlog’s CH1 connector at the top of the device. 11 - 8 SKF Microlog - GX Series User Manual...
  • Page 281 On windy days, it may become necessary to fit the microphone / parabolic reflector’s wind baffle (CMAC 5143) over the parabolic reflector to reduce wind noise. Simply stretch the wind baffle’s elastic band over the parabolic reflector until snug. SKF Microlog - GX Series 11 - 9 User Manual...
  • Page 282 Channel - Press and hold the shift key (zero / up arrow), then press the left/right arrows to toggle between CH:1 - enveloped acceleration ultrasound and CH:2 - raw unfiltered sound. 11 - 10 SKF Microlog - GX Series User Manual...

  • Page 283: How To Set Up A Conveyor Idler Survey

    Setup – Displays the measurement setup screen for the highlighted measurement type (i.e., Recall or New). Start – Take Idler Sound Monitor data using the currently highlighted icon’s settings. Back – Returns you the Microlog’s Main Menu screen. SKF Microlog - GX Series 11 - 11 User Manual...
  • Page 284 Save – Saves the current settings. Enter a filename to identify the measurement settings. Start – Take Idler Sound Monitor data using the current settings. Back – Returns you to the Idler Monitor menu. 11 - 12 SKF Microlog - GX Series User Manual...

  • Page 285: Led Indicators

    English to set belt speed in ft/min and idler diameter in inches. Sensitivity – Enter the microphone’s sensitivity in mV/Pascal of sound pressure. The default sensitivity is set to 45 mV/Pascal for the microphone provided by SKF. This should not need to be changed unless a different microphone is used.

  • Page 286: How To Perform A Conveyor Idler Roller Survey

    OK – none of the four measurements are in alarm state. Suspect – one of the four measurements is in alarm state. Bad – at least two of the four measurements are in alarm state. 11 - 14 SKF Microlog - GX Series User Manual...
  • Page 287  In very high ambient noise conditions, the closer you are to the conveyor, the easier it is for the Idler Sound Monitor to filter out unwanted ambient noise, and to provide accurate detection of faulty idler roller condition. SKF Microlog - GX Series 11 - 15 User Manual...
  • Page 288 • At the end of the survey, press the Back function button to return the Idler Monitor - Setup screen. Data acquisition is automatically halted. 11 - 16 SKF Microlog - GX Series User Manual...
  • Page 289 (typically a numeric entry), and press OK. Your note is stored with the current idler roller data and data acquisition resumes. • Continue to the next set of idler rollers. SKF Microlog - GX Series 11 - 17 User Manual...
  • Page 290 • Press the Monitor function button (or an Enter button) to return to the traffic light indicator display. 11 - 18 SKF Microlog - GX Series User Manual...

  • Page 291: Transferring, Reviewing, And Deleting Survey Data Files

    Microlog for details. • Using Windows Explorer, copy the stored survey data files (.csv files) from the Microlog’s Mobile Device/Internal Disk/Idler Monitor folder to an appropriate folder on the host computer. SKF Microlog - GX Series 11 - 19 User Manual...
  • Page 292 Filenames for stored data files begin with the Plant Name specified in the survey’s setup, followed by the survey’s date/timestamp. 11 - 20 SKF Microlog - GX Series User Manual...
  • Page 293 • Eject the card and store in a safe place, or insert the card into the host computer and copy the backed up files to the host computer’s hard drive. SKF Microlog - GX Series 11 - 21 User Manual...

  • Page 294: Resetting Measurement Alarm Thresholds

    • Update your survey settings with new measurement thresholds – Reference this manual’s previous How to Set up a Conveyor Idler Survey section for details. 11 - 22 SKF Microlog - GX Series User Manual...
  • Page 295 From the ROUTE screen, press the Nonroute function button. The Nonroute screen displays.  The Nonroute function button appears on the ROUTE screen only if Use Legacy Nonroute is the selected Nonroute setting on the system Setup screen. SKF Microlog - GX Series A - 1 User Manual...
  • Page 296 Configure – Initiates Configuration mode, allowing you to change global data collection settings. Note that changes to these settings apply to all Microlog measurements, including both ROUTE and Non ROUTE measurements. A - 2 SKF Microlog - GX Series User Manual...

  • Page 297: How To Collect Pre-Set Non Route Measurements

    Lines/Samples setting is 800 Lines. This allows you to quickly take a high resolution look at your active ROUTE measurement. Measurement parameters are set to: Overlap – 50% Bin Zeroing - On SKF Microlog - GX Series A - 3 User Manual...
  • Page 298 Units – A -> V Display Format – Spectrum High-pass frequency - 1.1 Hz Fmax - 1 kHz Lines/Samples - 400 Lines Averages – 4 Input Channel – CH1 Overlap – 50% A - 4 SKF Microlog - GX Series User Manual...
  • Page 299 Machinery that uses pressure fed sleeve bearings is normally both critical to plant operations and very expensive to repair. It is therefore essential that these rotors are effectively monitored, protected, and maintained to the highest standard. SKF Microlog - GX Series A - 5 User Manual...
  • Page 300 AC – Acquires the input signal from a buffered output (external) device. DC – Acquires the input signal from a powered transducer (e.g., proximity probe), and measures the DC bias (Gap) of the probe output. A - 6 SKF Microlog - GX Series User Manual...
  • Page 301 Type In - Type in the value using the numeric keypad, or Spec - Select the 1X RPM frequency from the spectrum display. Press the dBase button to use the RPM value previously assigned to the POINT. • SKF Microlog - GX Series A - 7 User Manual...
  • Page 302 Collecting and Displaying Orbit Data After pressing an Enter button from the Orbit Setup screen, or after specifying the measurement’s RPM value, data collection takes place and the orbit display appears. A - 8 SKF Microlog - GX Series User Manual...
  • Page 303  Reference the Coded Notes section in the ROUTE Data Collection chapter for more information. Back – Press the Back function button to exit the orbit display without storing the measurement data. You return to the main screen. SKF Microlog - GX Series A - 9 User Manual...

  • Page 304: Data

    The NonROUTE User Defined Measurement Setup Screen. Function Buttons Help – Press the Help function button to quickly view the on-line help. Default – Press to reset all User screen settings to their default values. A - 10 SKF Microlog - GX Series User Manual...
  • Page 305 Repeat for each element you wish to name. Display Format – Determines how to display the measurement’s data. Options are: Spectrum + Time Spectrum Time Phase Orders + Time Orders SKF Microlog - GX Series A - 11 User Manual...
  • Page 306 (max Pk. – min Pk.). Use the following table to determine which Peak or Pk-Pk setting will match the CMVA65, CMVA55, CMVA40, and CMVA30’s detection method for the same POINT type: A - 12 SKF Microlog - GX Series User Manual...
  • Page 307 Lines/Samples – Determines the resolution of the spectrum. Note increased resolution requires increased time for data collection and consumes more storage memory. Frequency range = frequency segment size lines resolution SKF Microlog - GX Series A - 13 User Manual...
  • Page 308 Spectral – The summation of the magnitude of each spectral line is divided by the total number of averages (ensemble averaging). This is the most frequently used method of averaging for routine data collection and analysis. A - 14 SKF Microlog - GX Series User Manual...

  • Page 309: How To Set Up Hfd Measurements

     ROUTE dHFD POINTs – When collecting ROUTE data on the Microlog, any HFD POINTs downloaded from @ptitude Analyst software are automatically converted to dHFD POINTs (either RMS or Peak detection). SKF Microlog - GX Series A - 15 User Manual...

  • Page 310: How To Set Up Multi-Channel Measurements

    8 orders.  Multi-channel Orbit measurements were described in the How to Collect Pre-set Non ROUTE Measurements section of this chapter. A - 16 SKF Microlog - GX Series User Manual...
  • Page 311 The Microlog supports up to three-channel measurements using the two Fischer connectors and the USB Host connector at the top of the unit.  Refer to the Connector Details section in the Introduction to the SKF GX Series Microlog chapter for pin-out details. CH1 Fischer Connector CH2 Fischer Connector...
  • Page 312 View menu options for two channel displays are: Two Chan FFT: Default View POINT Info Two Chan FFT: No Overall Ch1 FFT: Default View Ch1 FFT: No Overall Ch2 FFT: Default View Ch2 FFT: No Overall A - 18 SKF Microlog - GX Series User Manual...
  • Page 313 View menu options are: Two Chan FFT: Default View POINT Info Two Chan FFT: No Overall Ch1 FFT: Default View Ch1 FFT: No Overall Ch2 FFT: Default View Ch2 FFT: No Overall SKF Microlog - GX Series A - 19 User Manual...
  • Page 314 Ch1 FFT and Time: No Overall Ch1 FFT: Default View Ch1 FFT: No Overall CH1 Time Only Ch2 FFT and Time: No Overall Ch2 FFT: Default View Ch2 FFT: No Overall CH2 Time Only A - 20 SKF Microlog - GX Series User Manual...
  • Page 315 Default View (spectrum), FFT and Time, or Time Only for each channel. • When finished collecting and viewing your multi-channel measurement data, press an Enter button to store your data and return to the Non ROUTE mode’s main screen. SKF Microlog - GX Series A - 21 User Manual...

  • Page 316: How To Set Up A Cross Channel Phase Measurements

    - Take the RPM value from the database if previously assigned to the POINT.  This option only appears if the currently selected POINT in ROUTE mode has a speed entered. Type In - Type in the value using the numeric keypad, or A - 22 SKF Microlog - GX Series User Manual...
  • Page 317 • frequency. Data collection begins. Collecting and Displaying Cross-Channel Phase Data After entering the RPM value, press an Enter button to perform data collection. The cross channel phase display appears. SKF Microlog - GX Series A - 23 User Manual...

  • Page 318: Multi Channel Cursor, Display Expand, And Full Scale Adjustments

    (amplitude axis), and display / expand adjustments using the +/- keys (frequency/time axis). Independent Autoranging For two channel measurements, autoranging is performed simultaneously on both channels. This allows you to use two probes of differing sensitivity, and allows you to A - 24 SKF Microlog - GX Series User Manual...
  • Page 319 Non ROUTE measurement data can be reviewed in a similar manner to ROUTE data. To review Non ROUTE measurement data: • From the Nonroute screen, press the Review function button. The Review Data screen displays. SKF Microlog - GX Series A - 25 User Manual...
  • Page 320 (if entered in the User setup screen). • Press the Back function button to return to the Non ROUTE Review screen. • Press the Back function button to return to the Nonroute screen. A - 26 SKF Microlog - GX Series User Manual...
  • Page 321 Field Upgrades and Accessories Overview The following field upgrades and accessories may be used with the Microlog GX (CMXA 75). Contact your SKF sales representative for purchase information. Field Upgrades SKF Microlog FFT Analyzer module upgrade for CMXA 75 CMXA MOD-ANA-SL...
  • Page 323 0 / up arrow or 0 / down arrow – adjust the volume (from 0 to 10) • 0 / left arrow or 0 / right arrow – sequences through channels being monitored (from Ch:1 to Ch:4) SKF Microlog - GX Series C - 1 User Manual...

  • Page 324: How To Use The Strobe Light With The Gx

    Connect the output cable into the USB DEV / TRIG / POWER connector on the Microlog.  • Connect the output cable’s jack plug into the socket of the strobe light. C - 2 SKF Microlog - GX Series User Manual...
  • Page 325 CS625B01 Batteries Use BP-12 only. The BP-12 battery can be charged out with the hazardous location using a power supply supplied by the manufacturer and CA-38 connected to the instrument. SKF Microlog - GX Series D - 1 User Manual...
  • Page 326 Instrument Installation Drawing (090-22600-1 Rev B) Connecting an accelerometer to the instrument An accelerometer can be connected to the rear panel connectors marked CH1 and CH2. The connection options are shown in the following diagram. D - 2 SKF Microlog - GX Series User Manual...
  • Page 327 Safety Instructions Instrument Installation Drawing (090-22600-1 Rev B) Memory cards Manufacturer Model Sandisk Secure Digital Card SDSDx-yyy SKF Microlog - GX Series D - 3 User Manual...

  • Page 328: Safety Instructions (090-22861-1 Rev C)

    Suitable precautions - e.g., regular checks as part of routine inspections or establishing from the material’s data sheet that it is resistant to specific chemicals. D - 4 SKF Microlog - GX Series User Manual...
  • Page 329 Power/USB/Trigger connectors are to be used in the hazardous area for connection to Ex approved equipment as detailed below. Accessories The following accessories may be used with the instrument in the hazardous area: Battery BP-12 (only) SKF Microlog - GX Series D - 5 User Manual...
  • Page 330 SKF Part Number STR-8 Hand Strap CMAC 5020 STR-9 Neck Strap CMAC 5113 Other Ex approved equipment may be used as long as they do not invalidate the entity parameters listed D - 6 SKF Microlog - GX Series User Manual...

  • Page 331: Glossary Of Terms

    FFT - See Fast Fourier Transform. condition; used as a reference for monitoring Field - One data item. Examples of fields are and analysis. POINT Type, Description, etc. SKF Microlog - GX Series Glossary - 1 User Manual...
  • Page 332 Keyphasor Phase Reference Sensor - A signal measurement type. used in rotating machinery measurements, generated by a sensor observing a once-per-revolution event. (Keyphasor is a Bently-Nevada trade name.) Glossary - 2 SKF Microlog - GX Series User Manual...
  • Page 333 RMS - The square root of the sum of a set of squared instantaneous values. ROUTE - A measurement POINT collection sequence. SKF Microlog - GX Series Glossary - 3 User Manual...
  • Page 335 4-14 Bode plot 7-8 analyzer module 4-1 display 7-10 ARM 1-8 setup 7-8 arrow buttons 1-14, 3-6 bump test 4-33 data display screens 1-16 buttons 1-13 hierarchy list screens 1-16 SKF Microlog - GX Series Index - 1 User Manual...
  • Page 336 1-18 cross channel phase A-22 display y axis 4-10 data collection A-22 download 1-22 display screen A-23 downloading 3-2 measurement setup A-22 dynamic measurements 3-10 phase tables A-24 review 3-28 Index - 2 SKF Microlog - GX Series User Manual...
  • Page 337 3-5, 3-6 manual data entry display screen 3-21 navigation 3-5 non-route mode A-2 high res, pre-set measurement A-3 orbit display screen A-9 high-pass filter A-13 overview 1-12 historical data SKF Microlog - GX Series Index - 3 User Manual...
  • Page 338 A-17 license modules 1-12 time waveform setup A-17 linear 4-10 multi measurements lines resolution 4-11 collection A-17 lines/samples A-13 setup A-17 live time waveform 6-3 multi spectrum location no. 9-15 Index - 4 SKF Microlog - GX Series User Manual...
  • Page 339 A-6 processing time - RUCD 7-2 coupling A-6 prognosis 5-3, 5-38 ext. trigger slope A-7 message 5-43 level A-7 pulses/rev 7-5 sensitivity A-7 purchase modules 1-12 trigger A-7 SKF Microlog - GX Series Index - 5 User Manual...
  • Page 340 7-5 shift key 2-1 processing time 7-2 show icons 1-10, 1-11 setup 7-4 SKF title screen 1-9, 1-14, 10-2 start - stop speed 7-5 skip function button 9-19, 10-6 state 7-6 skip test position 9-19, 10-6 taking data mode 7-6...
  • Page 341 7-14 spectrum A-18 setup 7-13 spectrum/time waveform A-20 table of peaks 4-5 time waveform A-19 taking data mode 8-8 triggerless operation A-25 test template 9-1, 10-1 two channel recording 6-3 SKF Microlog - GX Series Index - 7 User Manual...
  • Page 342 A-10 variable sensor type 4-9 velocity, pre-set measurement A-4 version number 1-14, 10-2 vibration threshold 5-7 view 3-13 grid 3-13 options 3-13 view signal 4-10 volume control 11-10 Index - 8 SKF Microlog - GX Series User Manual...

This manual is also suitable for:

Microlog gx-mMicrolog gx-rMicrolog gx-fMicrolog gx-a

Table of Contents

Save PDF