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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.

Summary of Contents for CMON 2504

Page 1: ...used in combination with other SKF condition monitoring equipment and techniques to help identify a range of machinery defects Key features Enables use of SKFAcoustic Emission Enveloping technology A...

Page 2: ...ponding term on the right AE Acoustic emission AEE SKFAcoustic Emission Enveloping aeE Acoustic Emission Enveloping units IMx SKF Multilog On line System IMx Observer SKF ptitude Observer Microlog SKF...

Page 3: ...sor or adjacent to AE sensor installation site 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 Obse...

Page 4: ...x P A B Chx IMx S J2 3 J2 2 J2 1 J3 3 J3 2 J3 1 J1 3 J1 2 J1 1 x x Black Blue Green Red Cable screen Chassis ground bar To CMSS 786M sensor x CMON 2504 J1 J3 J2 Ch1 gE Ch2 AEE Chx IMx W J2 3 J2 2 J2 1...

Page 5: ...V DC power supply input and signal ground Supply J2 3 not used J3 1 AE DIN interface demodulated output Output J3 2 not used J3 3 Signal ground Output Check power supply Check wiring Check wiring and...

Page 6: ...al noise mains interference evident in signal Effect Excess electrical noise can lift the noise floor and can mask interesting low amplitude acoustic emission activities This manifests itself at 100 H...

Page 7: ...utput of 100 mV per aeE What are the benefits Provides a method of monitoring for bearing lubrication quality and issues that is far more sensitive than other techniques currently on the market This a...

Page 8: ...p These competence areas include bearings and units seals lubrication systems mechatronics and a wide range of services from 3 D computer modelling to cloud based condition monitoring and asset manage...

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