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CMON 2504
Service manual
The CMON 2504 interface card extends the
functionality of the SKF Multilog On-line
System IMx to include SKF Acoustic Emission
Enveloping (AEE) technology. SKF Acoustic
Emission Enveloping is an acoustic emission
(AE) measurement method that can be used
to assess lubrication conditions within a
rolling element bearing while it is in service.
It can also be used in combination with other
SKF condition monitoring equipment and
techniques to help identify a range of
machinery defects.
Key features
• Enables use of SKF Acoustic Emission
Enveloping technology
• Assessment of lubrication conditions
within rolling element bearings whilst in
service by use of lubrication film
breakdown detection
• Enveloped demodulated AE signal at
100 mV/aeE
• Enveloping and filtering of 100 to 500 kHz
band pass on AE input
• Two (2) different cable lengths (10 and
20 m) available for the cable assembly
CMON 2504 AE interface card.
CMSS-ONL-2504 cable assembly.
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Table of Contents
Related Manuals for SKF CMON 2504
Summary of Contents for SKF CMON 2504
- Page 1 CMON 2504 Service manual The CMON 2504 interface card extends the functionality of the SKF Multilog On-line System IMx to include SKF Acoustic Emission Enveloping (AEE) technology. SKF Acoustic Emission Enveloping is an acoustic emission (AE) measurement method that can be used to assess lubrication conditions within a rolling element bearing while it is in service.
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Page 2: Table Of Contents
3. CMON 2504 – Card Description The intended audience for this document is Certified Service The CMON 2504 interface card extends the functionality of the SKF Technicians and technical support personnel who provide detailed Mulitlog On-line System IMx to include SKF Acoustic Emission technical work to customers, either over the telephone or in person. -
Page 3: Cmss 786M Dual Sensor
Before testing with the CMAC 2504 ensure that the AE sensor is connected to a CMON 2504 card, which should in turn be connected to an IMx. SKF @ptitude Observer should also be preconfigured to acquire acoustic emission signals. - Page 4 Fig. 2. CMON 2504 wiring diagram – IMx-S IMx-S 100110 100100 Black Blue Green Cable screen Chassis ground bar To CMSS 786M sensor Fig. 3. CMON 2504 wiring diagram – IMx-W IMx-W Relay driver RS485 +12V D0 +12V Black Blue...
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Page 5: Cmon 2504 And Cmss-Onl-2504 Installation Validation And Debugging Procedure
The procedure is outlined in flowchart format and only a digital voltmeter is required. Note that the following nomenclature (J1-1, etc.) is used when referring to the CMON 2504 terminals (Input + etc.). • J1-1: AE sensor signal / phantom power line (Input +) •... - Page 6 Excess electrical noise can lift the noise floor and can mask interesting low amplitude acoustic emission activities. This manifests itself at 100 Hz or If the polarity of the input wires to the CMON 2504 is incorrect then the 120 Hz peaks in the spectrum depending on whether the local mains output signal will be low in amplitude and should show little if any response frequency is 50 Hz or 60 Hz.
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Page 7: Faq
CMON 2504 can be powered from IMx-W. If more It is an Acoustic Emission Enveloping (AEE) Interface that than six CMON 2504 are to be used in an IMx-W, or if relays are in demodulates a specific frequency band of Acoustic Emission (AE) so... - Page 8 Tel: +46 (0)31 337 1000 · Fax: +46 (0)920 134 40 Web: www.skf.com/cm ® SKF, @PTITUDE, MICROLOG and MULTILOG are registered trademarks of the SKF Group. Microsoft is a registered trademark of Microsoft Corporation in the United States and/or other countries.
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