Motcom BeCOMS, User Manual, Page: 54 / 82

motcom
®
BeCOMS
®
User Manual
Release
220601
Page 6.12
6.11 Manual Data Analysis for Compartment Localization
As described in Chapter 4 Functional Description the faulty parts will produce higher
thermovoltage signal due to high pressure during firing in the affected cylinders.
BeCOMS
®
Data_Logger software displays the polar log data superposed with the
cylinder numbers. This allows a trained engine operator to recognise the following
possible causes of the high thermosignal:
• friction between the rotating crankshaft and its bearings. In this case it is possible
to identify:
- compartment where the failure has occured,
- the bearings that are affected
• other moving parts not related to the rotating crankshaft. Having experience with
this certain engine type, the operator can identify:
- the exact parts that cause the high thermosignal.
To get reliable failure localization results, a continuous time interval should be
analysed in the logfile recorded on the day when failure was registered.
Attention
A general description cannot be given at this point, because the form of thermo-
voltage signals in BeCOMS
®
varies depending on the type of engine and application.
In the training session after the commissioning, the engine operators will be trained
intensively to perform the localization of faulty compartment and parts specific to
their engines.
If no such trained person is available, or if he or she was not able to find the problem,
please contact motcom GmbH or its representatives for further analysis of your
measurement data.
Please do not send the log file immediately in your first email to us. You will get
further information after contacting us.
!
!